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| CL-PD6710/'22 (R) Preliminary Data Sheet FEATURES s Single-chip PC Card host adapters s Direct connection to ISA (PC AT) bus and one or two PC Card sockets s Compliant with PC Card Standard, PCMCIA 2.1, and JEIDA 4.1 s 82365SL-compatible register set, ExCATM-compatible s Automatic Low-Power Dynamic mode for lowest active power consumption s Programmable Suspend mode s Hardware-enabled Super Suspend mode s Five programmable memory windows per socket and two programmable I/O windows per socket s Programmable card access cycle timing s 8- or 16-bit system bus interface s 8- and 16-bit PC Card interface support s ATA disk interface support s DMA support (CL-PD6722) s Card-voltage sense support s PC Card activity indicator s Mixed-voltage operation (3.3/5.0 V) s Single-socket interface: 144-pin VQFP for smallest form factor (CL-PD6710) s Dual-socket interface: 208-pin PQFP or VQFP (CL-PD6722) ISA-to-PC-Card Host Adapters OVERVIEW The CL-PD6710 and CL-PD6722 are single-chip PC Card host adapter solutions capable of controlling one (CL-PD6710) or two (CL-PD6722) PC Card sockets. The chips are compliant with PC Card Standard, PCMCIA 2.1, and JEIDA 4.1 and are optimized for use in notebook and handheld computers where reduced form factor and low power consumption are critical design objectives. With the CL-PD6710, a complete PC Card solution with power-control logic can occupy less than 1.5 square inches (excluding the socket connector). With the CL-PD6722, a complete dual-socket PC Card solution with power-control logic can occupy less than 2 square inches (excluding socket connectors). The chips employ energy-efficient mixed-voltage technology that can reduce system power consumption by over 50 percent. The chips also provide: a Low-Power Dynamic mode, which automatically stops the internal clock during periods of card inactivity; a software-controlled Suspend mode, which dramatically reduces power by disabling most of the internal circuitry and stopping data transactions to the PC Cards; and a hardware-controlled Super Suspend mode, which reduces current to the A range. (cont.) System Block Diagram PC PC CARD SOCKET 1 . ...... ...... ...... ...... ...... ...... ...... ...... ...... ....... Ca rd CL-PD6710 ISA (AT) BUS 144-Pin CL-PD6722 208-Pin PC CARD SOCKET 2 (CL-PD6722) . ...... ...... ...... ...... ...... ...... ...... ...... ...... ....... PC Ca rd Version 3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters OVERVIEW (cont.) Personal computer applications typically access PC Cards through a third-party socket/card-services software interface. To assure full compatibility with industry-standard socket/card-services software and PC Card applications, the register set in the CL-PD6710 and CL-PD6722 is a superset of the Intel(R) 82365SL register set. The chips provide fully buffered PC Card interfaces, meaning that no external logic is required for buffering signals to/from the interface, and power consumption can be controlled by limiting signal transitions on the PC Card bus. Notebook Computer Design Priorities s Small Form Factor Supporting Features I Single-chip solutions I No external buffers for host or socket I Efficient board layout s Minimum Power Consumption I Automatic Low-Power Dynamic mode I Hardware- and software-controlled Suspend modes I Mixed-voltage operation s High Performance I Write cache I Programmable timing supports more cards, faster reads and writes I Automatic bus sizing for 8- or 16-bit I DMA available with the CL-PD6722 s Compatibility I Compliant with PC Card Standard, PCMCIA 2.1, and JEIDA 4.1 I 82365SL A-step register-compatible, ExCATM-compatible Host Adapter Form Factor 1 9/16" 1 3/8" Card Card VCC VCC 1 1/4" 1" CL-PD6710 144-Pin VQFP and VPP Switching Circuitry CL-PD6722 208-Pin PQFP or VQFP and VPP Switching Circuitry 2 PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters Table of Contents 1. 2. 2.1 2.2 2.3 2.4 GENERAL CONVENTIONS.................. 7 PIN INFORMATION ............................... 8 Pin Diagrams ..................................................... 9 Pin Description Conventions............................ 11 Pin Descriptions............................................... 12 Power-On Configuration Summary .................. 21 7.6 7.7 Card I/O Map 0-1 Offset Address Low ............52 Card I/O Map 0-1 Offset Address High ...........52 8. 8.1 8.2 8.3 8.4 8.5 8.6 MEMORY WINDOW MAPPING REGISTERS .........................................53 System Memory Map 0-4 Start Address Low ..................................................................53 System Memory Map 0-4 Start Address High..................................................................54 System Memory Map 0-4 End Address Low ..................................................................54 System Memory Map 0-4 End Address High..................................................................55 Card Memory Map 0-4 Offset Address Low ..................................................................56 Card Memory Map 0-4 Offset Address High..................................................................56 3. INTRODUCTION.................................. 22 3.1 System Architecture......................................... 22 3.1.1 PC Card Basics ............................................ 22 3.1.2 CL-PD67XX Windowing Capabilities ............ 22 3.1.3 CL-PD67XX Functional Blocks ..................... 25 3.1.4 Interrupts ...................................................... 25 3.1.5 Alternate Functions of Interrupt Pins ............ 26 3.1.6 General-Purpose Strobe Feature ................. 26 3.1.7 Voltage Sense Pins....................................... 27 3.1.8 CL-PD67XX Power Management ................. 27 3.1.9 Socket Power Management Features........... 28 3.1.10 Write FIFO .................................................... 29 3.1.11 Bus Sizing..................................................... 29 3.1.12 Programmable PC Card Timing.................... 29 3.1.13 ATA Mode Operation..................................... 29 3.1.14 DMA Mode Operation for the CL-PD6722............................................. 30 3.1.15 Selective Data Drive for I/O Windows ........... 30 3.2 Host Access to Registers................................. 30 3.3 Power-On Setup............................................... 31 9. 9.1 9.2 9.3 9.4 9.5 9.6 9.7 9.7.1 9.7.2 9.7.3 9.7.4 9.7.5 9.7.6 EXTENSION REGISTERS ...................58 Misc Control 1 ..................................................58 FIFO Control ....................................................60 Misc Control 2 ..................................................61 Chip Information...............................................63 ATA Control ......................................................64 Extended Index ................................................65 Extended Data .................................................65 Data Mask 0-1 .............................................66 Extension Control 1 (CL-PD6722 only, formerly DMA Control) ..................................66 Maximum DMA Acknowledge Delay (CL-PD6722 only) .........................................67 External Data (CL-PD6722 only, Socket A, Index 2Fh).....................................................69 External Data (CL-PD6722 only, Socket A, Index 6Fh).....................................................70 Extension Control 2 (CL-PD6722 only) ........71 4. 5. 5.1 5.2 REGISTER DESCRIPTION CONVENTIONS................................... 32 OPERATION REGISTERS .................. 33 Index ................................................................ 33 Data ................................................................. 36 6. 6.1 6.2 6.3 6.4 6.5 6.6 6.7 CHIP CONTROL REGISTERS............ 37 Chip Revision................................................... 37 Interface Status................................................ 38 Power Control .................................................. 40 Interrupt and General Control .......................... 42 Card Status Change ........................................ 44 Management Interrupt Configuration ............... 45 Mapping Enable ............................................... 47 10. TIMING REGISTERS ...........................72 10.1 Setup Timing 0-1 .............................................72 10.2 Command Timing 0-1......................................73 10.3 Recovery Timing 0-1 .......................................74 11. ATA MODE OPERATION .....................75 12. USING GPSTB PINS FOR EXTERNAL PORT CONTROL (CL-PD6722 only) ..77 12.1 Control of GPSTB Pins ....................................77 12.2 Example Implementations of GPSTB-Controlled Read and Write Ports.......................................79 12.3 GPSTB in Suspend Mode................................80 7. 7.1 7.2 7.3 7.4 7.5 I/O WINDOW MAPPING REGISTERS ........................................ 49 I/O Window Control .......................................... 49 System I/O Map 0-1 Start Address Low.......... 50 System I/O Map 0-1 Start Address High......... 50 System I/O Map 0-1 End Address Low ........... 51 System I/O Map 0-1 End Address High .......... 51 13. VS1# AND VS2# VOLTAGE DETECTION .........................................81 3 May 1997 PRELIMINARY DATA SHEET v3.1 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 14. DMA OPERATION (CL-PD6722 only)................................ 83 DMA Capabilities of the CL-PD6722 ............... 83 DMA-Type PC Card Cycles ............................. 83 ISA Bus DMA Handshake Signal..................... 84 Configuring the CL-PD6722 Registers for a DMA Transfer ................................................ 84 14.4.1 Programming the DMA Request Pin from the Card........................................................ 85 14.4.2 Configuring the Socket Interface for I/O ....... 86 14.4.3 Preventing Dual Interpretation of DMA Handshake Signals....................................... 86 14.4.4 Turning On DMA System .............................. 86 14.5 The DMA Transfer Process .............................. 86 14.6 Terminal Count to Card at Conclusion of Transfer ....................................................... 86 14.1 14.2 14.3 14.4 15.3.4 General-Purpose Strobe Timing (CL-PD6722 only).........................................96 15.3.5 Input Clock Specification ..............................97 15.3.6 PC Card Bus Timing Calculations ................98 15.3.7 PC Card Socket Timing ................................99 16. PACKAGE SPECIFICATIONS........... 110 16.1 144-Pin VQFP Package .................................110 16.2 208-Pin PQFP Package .................................111 16.3 208-Pin VQFP Package .................................112 17. ORDERING INFORMATION EXAMPLE.......................................... 113 A. Using the Cirrus Logic BBS and FTP Server................................. 114 B. Register Summary Tables ............... 116 B.1 B.2 B.3 B.4 B.5 B.6 Operation Registers .......................................116 Chip Control Registers...................................116 I/O Window Mapping Registers .....................118 Memory Window Mapping Registers .............119 Extension Registers .......................................120 Timing Registers ............................................123 15. ELECTRICAL SPECIFICATIONS ....... 87 15.1 Absolute Maximum Ratings ............................. 87 15.2 DC Specifications ............................................ 87 15.3 AC Timing Specifications ................................. 91 15.3.1 ISA Bus Timing ............................................. 92 15.3.2 Reset Timing................................................. 94 15.3.3 System Interrupt Timing................................ 95 INDEX ................................................ 124 4 PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters Document Revision History Version 3.1 Following are major changes between September 1995 and May 1997 versions of this data sheet: General The CL-PD6710 replaces the CL-PD6712, which was taken out of production. This change is reflected throughout this data sheet. Major differences of the CL-PD6710 from the CL-PD6712 include: The CL-PD6710 does not support DMA. Only a single voltage sense pin is available. GPSTB functionality is not supported. References to the CL-PD6720 were removed. References to the CL-PD672X were replaced with CL-PD6722. For the CL-PD6710, two pin names were changed from the CL-PD6712 to reflect their different functionality: VS1#/A_GPSTB is now 5V_DET. VS2#/B_GPSTB is now a no connect. Section 2.2 The General-Purpose Strobe/Voltage Sense pins in the CL-PD6712 ( VS1#/A_GPSTB and VS2#/B_GPSTB) were replaced by the 5V_DET in the CL-PD6710. The Extended Index and Extended Data registers (Scratchpad, Data Mask 0, Data Mask 1, Extension Control 1, Maximum DMA Acknowledge Delay, Reserved, External Data, and Extension Control 2) are only available on the CL-PD6722, not on the CL-PD6710. Voltage detection on the CL-PD6710 is provided by the 5V_DET pin. For the CL-PD6712, two pin names are different than the CL-PD6710 to reflect new functionality: 5V_DET became VS1#/A_GPSTB N.C./RESERVED became VS2#/B_GPSTB For the CL-PD672X, two pin names were changed to reflect new functionality: A_5V_DET became A_GPSTB B_5V_DET became B_GPSTB For the CL-PD67XX, four pin names were changed to reflect their full functionality: IRQ12 became IRQ12/LED_OUT* IRQ15 became IRQ15/RI_OUT* BVD1/-STSCHG became BVD1/-STSCHG/-RI BVD2/-SPKR became BVD2/-SPKR/-LED For the CL-PD67XX, two pin names were changed to match other Cirrus Logic PC Card products: SLOT_VCC became SOCKET_VCC VDD became CORE_VDD Section 2.2 2.3 I/O type codes changed. Table columns rearranged, power control pins placed in their own table. Table added for general-purpose strobe / voltage sense pins. 5.1 3.1.2 Windowing figures added. 3.1.3 Functional block figure added. 3.1.5 More information about LED_OUT*, RI_OUT*, DACK*, and DRQ alternate functions of interrupt pins added. 3.1.6 Section on general-purpose strobe added. 3.1.7 Section on voltage sense added. 3.2 4 6.3 6.4 6.6 9.1 9.4 9.7 Sample code for accessing registers added. Read/Write Convention table added. Auto-Power bit description changed. IRQ Level bits name changed to Card IRQ Select. Management IRQ bits name changed to Management IRQ Select. 5V Detect (bit 0 of index 16h) is now Reserved. Chip Identification (bits 7:6 of index 1Fh) is now named Cirrus Logic Host-Adapter Identification. External Data and Extension Control 2 registers added. LED Activity Enable bit added to Extension Control 1 register. Auto Power Clear bit name changed to Auto Power Clear Disable. `11' value of Prescalar Select bits of timing registers changed to 8192. 13 Version 3.0 Following are major changes between July 1994 and September 1995 versions of this data sheet: General A new chip was added: the CL-PD6712, which replaces the CL-PD6710. Extended register set was expanded. 208-pin VQFP package option was added for the CL-PD6720 and CL-PD6722. Some windowing register names were changed to specify either card or system. References to PCMCIA card were changed to PC Card. The chips are compatible with PC Card Standard, as R2 PC Card controllers. 10 May 1997 PRELIMINARY DATA SHEET v3.1 TABLE OF CONTENTS 5 CL-PD6710/'22 ISA-to-PC-Card Host Adapters For Command Multiplier Value bits, order of reset states for Timing sets 0 and 1 switched to show reset state for Timing set 0 first. Recovery Timing register reset value changed to 03h to allow additional I/O cycle recovery time of systems using 'DX/4 processors. 11 12 13 ATA information is now in an application note. General-purpose strobe chapter added. Voltage sense chapter added. 11.3 References to -WE and -OE in the last paragraph have been corrected. 11.4.1The table on DMA signal usage and Figure 11-2 have been slightly modified. 13 The 144- and 208-pin package drawings have been updated. Version 2 Following are major changes between January 1993 and October 1993 versions of this data sheet: General A new chip was added: the CL-PD6722. The CL-PD672X packaging name was changed to PQFP; the physical package is the same. The chips are also compatible with PCMCIA 2.1. Section 2.2 SPKR_OUT*/CSEL pin description in Table 2-1 was changed from TO-PU type to IO-PU type. Addition of the CL-PD6722 chip changed description in Tables 2-1 and 2-2 of the following pins: IRQ9, IRQ10, -VPP_VALID, -REG, -OE, -WE, WP/-IOIS16, -INPACK, and BVD2/-SPKR. The typical power consumption values in Table 3-1 were updated (reduced) to more closely reflect expected values. Sections 3.1.10 and 3.1.11 are new sections describing the CL-PD6722. Many indications of Constant bits in registers were changed from "0" to "Scratch Bit". In the Card Status Change register, the Battery Dead/STSCHG Enable bit name was renamed Battery Dead Or Status Change Enable. The Misc Control 2 register bit 6 is not reserved on the CL-PD6722. Its functionality is described. Sections 8.6 and 8.7 were added to describe CL-PD6722-specific registers. The Setup, Command, and Recovery field names were altered. The default state for the Command Multiplier Value field was corrected. The timing formulas for all three timing register sets were reformatted. The timing with `11' values selected on the Prescalar Select field calculate differently. This new chapter descr ibes DMA on the CL-PD6722. Extensive changes were made throughout this chapter. Please review carefully. 15.1 Allowable voltage on any pin increased to 0.5 V greater than voltage of +5V pin. 15.3 Table 15-7: values for t2, t2a, t10, t13, and t18 of ISA bus timing table changed. Table 15-9: Pulse mode interrupt timing added. Table 15-10: General-purpose strobe timing added. Table 15-12: values of t5 and t6 of memory read/write timing table changed. Table 15-13: -WAIT timing values added to word I/O read/write timing. Table 15-17 and 15-18: DMA read and write cycle timing tables expanded. 16 208-pin VQFP package added. Version 2.5 Following are major changes between October 1993 and July 1994 versions of this data sheet: General An extension register and two bits have been added to the CL-PD6722 register set. Section 1.2 5.2 Description for bits labeled Reserved, Compatibility, 0 or 1, and Scratchpad have been clarified. In the table for "Bits 1-0: Battery Voltage Detect", the column headings for bit 1 and bit 0 were reversed, and have been corrected. Bits 6, 3, and 2 (index 2h), bits 6 and 2 (index 7h), and bit 6 (index 11h, 19h, 21h, 29h, 31h) have been relabeled Compatibility bits. Bit 0 (index 36h, 38h) has been relabeled 0. Bit 1 (index 1Fh) has been changed to be a part of the CL-PD67XX Revision Level field. Bit 0 has been relabeled Reserved. Two bits, Auto-Power Clear and VCC Power Lock, and a register, Maximum DMA Acknowledge Delay, have been added to descriptions of the CL-PD6722 registers. The DMA Control register was renamed Extension Control 1. The Disable Socket Pull-Ups bit was renamed Pull-Up Control. 3.1 5-9 5 8 5-7 9 6.6 8.4 11 12 8.7 6 TABLE OF CONTENTS PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 1. GENERAL CONVENTIONS The following general conventions apply to this document. Throughout this document, CL-PD67XX means CL-PD6710 and CL-PD6722. Bits within words and words within various memory spaces are generally numbered with a 0 (zero) as the least-significant bit or word. For example, the least-significant bit of a byte is bit 0, while the mostsignificant bit is bit 7. In addition, number ranges for bit fields and words are presented with the most-significant value first. Thus, when discussing a bit field within a register, the bit number of the most-significant bit is written first, followed by a colon (:) and then the bit number of the least-significant bit; as in, bits 7:0. In this document, the names of the CL-PD67XX internal registers are boldfaced. For example, Chip Revision and Power Control are register names. The names of bit fields are written with initial uppercase letters. For example, Card Power On and Battery Voltage Detect are bit field names. Numbers and Units The unit Kbyte designates 1024 bytes (210). The unit Mbyte designates 1,048,576 bytes (220). The unit Gbyte designates 1,073,741,824 bytes (230). The unit Hz designates hertz. The unit kHz designates 1000 Hz. The unit MHz designates 1,000,000 Hz. The unit ms designates millisecond. The unit s designates microsecond. The unit ns designates nanosecond. The unit mA designates milliampere. The unit V immediately following a number designates volt. Hexadecimal numbers are presented with all letters in uppercase and a lowercase h appended. For example, 14h and 03CAh are hexadecimal numbers. Binary numbers are enclosed in single quotation marks when in text. For example, `11' is a binary number. Numbers not appended with an h nor enclosed by single quotation marks are decimal. In addition, a capital letter X is used within numbers to indicate digits ignored by the CL-PD67XX within the current context. For example, `101XX01' is a binary number with bits 3:2 ignored. May 1997 PRELIMINARY DATA SHEET v3.1 GENERAL CONVENTIONS 7 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 2. PIN INFORMATION The CL-PD6710 is available in a 144-pin VQFP (very tight-pitch quad flat pack) component package and the CL-PD6722 is available in either a 208-pin PQFP (plastic quad flat pack) component package or a 208-pin VQFP component package. The interface pins can be divided into five groups: q q q q q ISA bus interface pins PC Card socket interface pins (one or two sets) General-purpose strobe / voltage sense pins Power control pins Power and ground pins Refer to Figure 2-1 for the CL-PD6710 and Figure 2-2 for the CL-PD6722 pin diagrams. The pin assignments for the groups of interface pins are shown in Table 2-1 through Table 2-5. 8 PIN INFORMATION PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 2.1 Pin Diagrams IRQ3 SA7 IRQ4 SA8 IRQ5 SA9 SA10 IRQ7 SA11 SA12 REFRESH* SA13 SA14 SA15 SA16 IOR* IOW* AEN IOCHRDY GND SD0 SD1 ZWS* SD2 GND SD3 ISA_VCC SD4 SD5 IRQ9 SD6 SD7 PWRGOOD SPKR_OUT*/C_SEL -INTR N/C 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 108 107 106 105 104 103 102 101 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 SA6 SA5 SA4 ALE SA3 SA2 CLK SA1 SA0 MEMCS16* SBHE* IOCS16* LA23 IRQ10 LA22 IRQ11 LA21 CORE_VDD IRQ12/LED_OUT* LA20 IRQ15/RI_OUT* LA19 IRQ14 LA18 LA17 MEMR* MEMW* SD8 SD9 SD10 GND SD11 ISA_VCC SD12 SD13 SD14 ISA_VCC CL-PD6710 144-Pin VQFP +5V SOCKET_VCC GND SD15 -CD2 WP/-IOIS16 D10 D2 D9 D1 D8 D0 BVD1/-STSCHG/-RI A0 BVD2/-SPKR/-LED A1 A2 -INPACK A3 -WAIT GND A4 SOCKET_VCC RESET A5 A6 A25 A7 A24 A12 A23 A15 A22 A16 A21 RDY/-IREQ A20 -WE May 1997 +5V VPP_PGM VPP_VCC -VPP_VALID -VCC_3 -VCC_5 5V_DET -REG D3 -CD1 D4 D11 D5 D12 D6 CORE_VDD D13 SOCKET_VCC D7 GND D14 -CE1 D15 A10 -CE2 -OE A11 -IORD A9 -IOWR A8 A17 A13 A18 A14 A19 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 Figure 2-1. CL-PD6710 Pin Diagram PRELIMINARY DATA SHEET v3.1 PIN INFORMATION 9 CL-PD6710/'22 ISA-to-PC-Card Host Adapters LA23 IOCS16* SBHE* MEMCS16* SA0 SA1 CLK SA2 SA3 ALE SA4 SA5 SA6 IRQ3 SA7 IRQ4 SA8 IRQ5 SA9 SA10 IRQ7 SA11 SA12 REFRESH* SA13 SA14 SA15 SA16 IOR* IOW* AEN IOCHRDY SD0 SD1 ZWS* GND SD2 SD3 ISA_VCC SD4 SD5 IRQ9 SD6 SD7 PWRGOOD PKR_OUT*/C_SEL -INTR B_VPP_PGM B_VPP_VCC B_-VCC_3 B_-VCC_5 +5V 156 155 154 153 152 151 150 149 148 147 146 145 144 143 142 141 140 139 138 137 136 135 134 133 132 131 130 129 128 127 126 125 124 123 122 121 120 119 118 117 116 115 114 113 112 111 110 109 108 107 106 105 IRQ10 LA22 IRQ11 LA21 IRQ12/LED_OUT* LA20 IRQ15/RI_OUT* LA19 IRQ14 LA18 LA17 MEMR* MEMW* SD8 SD9 SD10 GND SD11 ISA_VCC SD12 SD13 SD14 SD15 CORE_VDD B_-CD2 B_WP/-IOIS16 B_D10 B_D2 B_D9 B_D1 B_D8 B_D0 B_BVD1/-STSCHG/-RI B_A0 B_BVD2/-SPKR/-LED B_A1 B_A2 B_-INPACK B_A3 B_SOCKET_VCC B_-WAIT B_A4 B_RESET B_A5 B_A6 GND B_A25 B_A7 B_A24 B_A12 B_A23 B_A15 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 ISA_VCC B_SOCKET_VCC CL-PD6722 208-Pin PQFP or VQFP A_SOCKET_VCC +5V 104 103 102 101 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 B_A22 B_A16 B_A21 B_RDY/-IREQ B_A20 B_-WE B_A19 B_A14 B_A18 B_A13 B_A17 B_A8 B_-IOWR B_A9 B_-IORD B_A11 B_SOCKET_VCC B_-OE B_-CE2 B_A10 B_D15 B_-CE1 B_D14 B_D7 B_D13 GND B_D6 B_D12 B_D5 B_D11 B_D4 B_-CD1 B_D3 B_-REG GND A_-CD2 A_WP/-IOIS16 A_D10 A_D2 A_D9 A_D1 A_D8 A_D0 A_BVD1/-STSCHG/-RI A_A0 A_BVD2/-SPKR/-LED A_A1 A_A2 A_-INPACK A_A3 A_-WAIT A_A4 A_VPP_PGM A_VPP_VCC -VPP_VALID A_-VCC_3 A_-VCC_5 A_GPSTB B_GPSTB A_-REG A_D3 A_-CD1 A_D4 A_D11 A_D5 A_D12 A_D6 A_D13 A_D7 A_D14 A_-CE1 A_D15 A_A10 A_-CE2 A_-OE A_SOCKET_VCC A_A11 A_-IORD CORE_VDD A_A9 A_-IOWR A_A8 GND A_A17 A_A13 A_A18 A_A14 A_A19 A_-WE A_A20 A_RDY/-IREQ A_A21 A_A16 A_A22 A_A15 A_A23 A_A12 A_A24 A_A7 A_A25 A_A6 A_A5 A_RESET A_SOCKET_VCC 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 Figure 2-2. CL-PD6722 Pin Diagram 10 PIN INFORMATION PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 2.2 Pin Description Conventions The following conventions apply to the pin description tables in Section 2.3: q q A dash (-) at the beginning of a pin name indicates an active-low signal for the PC Card bus. An asterisk (*) at the end of a pin name indicates an active-low signal for the ISA bus or that is a general interface for the CL-PD67XX. Pins marked with a dagger () in the pin description tables can be switched between CMOS and TTL input levels when CORE_VDD is powered at 5 volts. All other pins use CMOS input levels when CORE_VDD is powered at 5 volts and TTL input levels when powered at 3.3 volts. A pin name ending in bracketed digits separated by a colon [n:n] indicates a multi-pin bus. The pin number (Pin Number) column indicates the package pin that carries the listed signal. Note that multipin buses are listed with the first pin number corresponding to the most-significant bit of the bus. For example, pin numbers 123:120, 118, 117, 115, 114, 112, 110, 108:106, 104, 103, 101, and 100 are associated with ISA Bus Address Input and Data Input/Output pins SA[16:0] and indicate that: -- SA16 is pin 123 -- SA15 is pin 122 -- SA0 is pin 100 The quantity (Qty.) column indicates the number of pins used (per socket where applicable). The I/O-type code (I/O) column indicates the input and output configurations of the pins on the CL-PD67XX.The possible types are defined below. The power-type code (Pwr.) column indicates the output drive power source for an output pin or the pull-up power source for an input pin on the CL-PD67XX. The possible types are defined below. q q q q q q I/O Type I O I/O O-OD O-TS -PU GND PWR Description Input pin Power Type 1 Output or Pull-up Power Source +5V: powered from a 5.0-volt power supply in most systems (see description of +5V pin in Table 2-5) A_SOCKET_VCC: powered from the Socket A VCC supply connecting to PC Card pins 17 and 51 of Socket A B_SOCKET_VCC: powered from the Socket B VCC supply connecting to PC Card pins 17 and 51 of Socket B ISA_VCC: powered from the ISA bus power supply CORE_VDD: usually powered from the lowest available power supply for lowest power consumption, which in most systems is 3.3 volts Constant-driven output pin Input/output pin Open-drain output pin Tristate output pin An internal pull-up resistor is present Ground pin Power pin 5 3 2 4 NOTE: All pin inputs are referenced to CORE_VDD, independent of their output supply voltage. The drive-type (Drive) column describes the output drive-type of the pin (see DC specifications in Chapter 15 for more information). Note that the drive type listed for an input-only (I) pin is not applicable (-). q May 1997 PRELIMINARY DATA SHEET v3.1 PIN INFORMATION 11 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 2.3 Pin Descriptions Table 2-1. Pin Name LA[23:17] ISA Bus Interface Pins Pin Number Description CL-PD6710 ISA Bus Address Input: Connect to ISA sig- 96, 94, 92, 89, nals LA[23:17] or, for systems limited to 87, 85, 84 1-Mbyte address space, tie ALE high, ground LA[23:20] and connect LA[19:17] to ISA signals SA[19:17]. ISA Bus Address Input: Connect to ISA sig- 123:120, 118, nals SA[16:0]. 117, 115, 114, 112, 110, 108:106, 104, 103, 101, 100 ISA Bus Data Input/Output: These pins are 71, 73-75, 77, used to transfer data during a memory or I/O 79-81, 140, cycle. Connect to ISA signals SD[15:0]. 139, 137, 136, For 8-bit system buses, leave SD[15:8] uncon- 134, 132, 130, 129 nected. Byte High Enable: This input is used in con- 98 junction with SA[0] to specify the width and alignment of a data transfer. Connect to ISA signal SBHE*. For 8-bit system buses, pull up connect to ISA_VCC supply. Qty. CL-PD6722 157, 155, 153, 151, 149, 147, 146 I/O Pwr. Drive 7 I 4 - SA[16:0] 184:181, 179, 178, 176, 175, 173, 171, 169:167, 165, 164, 162, 161 134-137, 139, 141-143, 200, 199, 197, 196, 194, 193, 190, 189 159 17 I 4 - SD[15:0] 16 I/O 4 12 mA SBHE* 1 I 4 - IOR* I/O Read: This input indicates that a host 124 I/O read cycle is occurring. Connect to ISA signal IOR*. I/O Write: This input indicates that a host I/O 125 write cycle is occurring. Connect to ISA signal IOW*. Memory Read: This input indicates that a host 83 memory read cycle is occurring. Connect to ISA signal MEMR*. Memory Write: This input indicates that a host 82 memory write cycle is occurring. Connect to ISA signal MEMW*. Refresh: This input indicates a memor y 119 refresh cycle is occurring and will cause the CL-PD67XX to ignore memory accesses on the bus. Connect to ISA signal REFRESH*. Address Latch Enable: A high on this input 105 indicates a valid memory address on the LA[23:17] bus lines. Connect to ISA signal BALE. 185 1 186 1 145 1 144 1 180 1 I 4 - I 4 - I 4 - I 4 - I 4 - IOW* MEMR* MEMW* REFRESH* ALE 166 1 I 4 - 12 PIN INFORMATION PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters Table 2-1. Pin Name PWRGOOD ISA Bus Interface Pins (cont.) Pin Number Description CL-PD6710 Power Good: The CL-PD67XX will be reset 141 when the POWERGOOD input is low. Connect to the POWERGOOD signal from the system power supply; or, if not available, connect to inverted RESETDRV signal from ISA bus. Address Enable: This is an input from the 126 host CPU bus signal that distinguishes between DMA and non-DMA bus cycles. This input should be high for a DMA cycle and will cause the CL-PD67XX to ignore IOR* and IOW* except when a CL-PD6722 is configured for DMA and its DREQ (IRQ10) and DACK* (IRQ9) signals are active. Connect to ISA signal AEN. When CL-PD67XX is in Suspend mode (see Misc Control 2, bit 2 on page 61), pull this input high during system power-down for lowest power consumption. Qty. CL-PD6722 201 1 I/O Pwr. Drive I 4 - AEN 187 1 I 4 - MEMCS16* Memory Select 16: This output is an acknowl- 99 edge of 16-bit-wide access support and is generated by the CL-PD67XX when a valid 16-bitword-accessible memory address has been decoded. Connect to ISA signal MEMCS16*. I/O Select 16: This output is an acknowledge 97 for 16-bit-wide access support and is generated by the CL-PD67XX when a valid 16-bit wo r d a c c e s s i bl e I / O a d d r e s s h a s b e e n decoded. Connect to ISA signal IOCS16*. I/O Channel Ready: This output is driven low 127 by the CL-PD67XX to lengthen host cycles. Connect to the ISA bus IOCHRDY signal. Interrupt Request: These outputs indicate 86, 93, 116, programmable interrupt requests generated 113, 111, 109 from any of a number of card actions. Although there is no specific mapping requirement for c o n n e c t i n g i n t e r ru p t l i n e s f r o m t h e CL-PD67XX to the system, a common use is to connect these pins to the corresponding ISA signal names in the system. Interrupt Request 9: In default mode this out- 138 put indicates an interrupt request from one of the cards. When the CL-PD6722 is in DMA mode (see Misc Control 2, bit 6), IRQ9 becomes an input and is connected to the ISA bus DACK* line corresponding to the ISA bus DREQ line that the IRQ10 pin is connected to. In DMA mode this signal is active-low. 160 1 OOD 4 16 mA IOCS16* 158 1 OOD 4 16 mA IOCHRDY 188 1 148, 154, 177, 174, 172, 170 6 OTS 4 16 mA IRQ[14, 11, 7, 5:3] OTS 4 2 mA IRQ9 198 1 I/OTS 4 2 mA May 1997 PRELIMINARY DATA SHEET v3.1 PIN INFORMATION 13 CL-PD6710/'22 ISA-to-PC-Card Host Adapters Table 2-1. Pin Name IRQ10 ISA Bus Interface Pins (cont.) Pin Number Description CL-PD6710 Interrupt Request 10: In IRQ mode this out- 95 put indicates an interrupt request from one of the cards. When the CL-PD6722 is in DMA mode (see Misc Control 2, bit 6), IRQ10 is the DREQ to be connected to DREQ0, 1, 2, 3, 5, 6, 7 of the ISA bus. In DMA mode this signal is activehigh. Qty. CL-PD6722 156 I/O Pwr. Drive 1 OTS 4 2 mA IRQ12/ LED_OUT* Interrupt Request 12 / LED Output: In default 90 IRQ mode this output indicates an interrupt request from one of the cards, and is connected to the ISA bus IRQ12 signal. When the Drive LED Enable bit (see page 61) is set, this output becomes an open-drain driver for a disk-active LED (see ATA Control register bit 1) or PC Card activity LED (see Extension Control 1 register bit 2). Interrupt Request 15 / Ring Indicate Output: 88 In IRQ mode this output indicates an interrupt request from one of the cards. When the IRQ15/RI_OUT* Is RI Out bit (see page 62) is set to `1', this output is the -RI signal from the corresponding PC Card. Interrupt: This output indicates a management 143 interrupt. This should be connected to the system processor's SMI or NMI interrupt input, depending on the type of processor used. Zero Wait State: This output is connected to 131 the ISA ZWS (0WS) signal. It is driven low by the CL-PD67XX when it is able to complete the current memory access cycle in zero wait states. 152 OTS or OOD 1 4 12 mA IRQ15/ RI_OUT* 150 1 OTS 4 2 mA -INTR 203 1 OTS 4 2 mA ZWS* 191 1 OOD 4 16 mA 14 PIN INFORMATION PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters Table 2-1. Pin Name ISA Bus Interface Pins (cont.) Pin Number Description CL-PD6710 CL-PD6722 202 Qty. I/O Pwr. Drive SPKR_OUT*/ Speaker Out / Chip Select: This I/O pin can 142 be used as a digital output to a speaker to C_SEL allow a system to support a PC Card's -SPKR pin for fax/modem/voice and audio. During reset this pin also serves as a chip-configuration input. If the level on this pin is low when PWRGOOD rises, the CL-PD6710 is configured to support cards as a PC Card Socket 2 device, and the CL-PD6722 is configured to support cards as PC Card Socket 2 and Socket 3 devices. If the level on this pin is high when PWRGOOD rises, the CL-PD6710 is configured to support cards as a PC Card Socket 0 device, and the CL-PD6722 is configured to support cards as PC Card Socket 0 and Socket 1 devices. This pin is internally pulled up during reset so that default configuration of the chip as a Socket 0 (and Socket 1 for CL-PD6722) is facilitated. Adhere to the minimum pulse-width timing specification for PWRGOOD to allow the internal pull-up to operate and ensure the default configuration. Refer to the Socket Index field on page 33 for more information on chip configuration. After reset operations have completed, this pin defaults to high-impedance, and can then be enabled as a totem-pole speaker output by the setting of a card socket's Speaker Enable bit (Misc Control 1 register, bit 4). This output then becomes the negative polarity XOR of each socket's BVD2/-SPKR/-LED input that has its Speaker Enable bit set. For a description of socket index values, refer to Section 5.1. CLK Clock: This input is connected to the ISA bus 102 OSC signal. A 14.318-MHz signal is used to derive the internal 25-MHz clock used for all socket timing. Alternately, a 25-MHz clock source can be directly connected and the internal synthesizer bypassed. In default mode this is a status input that can 4 be used by software as an indication that the VPP power supply is stable. When the CL-PD6722 is in DMA mode (see Misc Control 2, bit 6), this input is connected to the TC (Terminal Count) signal of the ISA bus. In DMA mode, this signal is active-high. ISA_VCC System Bus VCC: This supply pin can be set 76, 135 to 3.3 or 5.0 V. The ISA Bus Interface pin group (this table) operates at the voltage applied to this pin independent of the voltage applied to other pin groups. 1 I/OPU 4 12 mA 163 1 I 4 - -VPP_VALID 3 1 I 1 - 138, 195 2 PWR - - May 1997 PRELIMINARY DATA SHEET v3.1 PIN INFORMATION 15 CL-PD6710/'22 ISA-to-PC-Card Host Adapters Table 2-2. Pin Name1 Socket Interface Pins Pin Number Description2 CL-PD6710 Socket A Socket B 71 CL-PD6722 Qty . I/O Pwr. Drive -REG Register Access: In Memory Card 8 Interface mode, this output chooses between attribute and common memory. In I/O Card Interface mode for non-DMA transfers, this signal is active (low). For DMA cycles on the CL-PD6722 to a DMA-capable card, -REG is inactive during I/O cycles to indicate a DMA cycle to or from the PC Card. In ATA mode, this signal is always inactive. 8 1 O-TS 2 or 3 2 mA A[25:0] PC Card socket address outputs. 48, 46, 44, 42, 40, 38, 36, 34, 32, 41, 43, 35, 33, 45, 27, 24, 29, 31, 47, 49, 50, 53, 56, 58, 59, 61 48, 46, 44, 42, 40, 38, 36, 34, 32, 41, 43, 35, 33, 45, 25, 21, 28, 30, 47, 49, 50, 53, 55, 57, 58, 60 110, 108, 106, 104, 102, 100, 98, 96, 94, 103, 105, 97, 95, 107, 89, 85, 91, 93, 109, 112, 113, 115, 118, 120, 121, 123 84, 82, 80, 77, 75, 130, 128, 126, 81, 78, 76, 74, 72, 129, 127, 125 87 26 O-TS 2 or 3 2 mA D[15:0] PC Card socket data I/O signals. 23, 21, 17, 14, 12, 68, 66, 64, 19, 15, 13, 11, 9, 67, 65, 63 20, 18, 16, 14, 12, 67, 65, 63, 17, 15, 13, 11, 9, 66, 64, 62 23 16 I/O 2 or 3 2 mA -OE Output Enable: For non-DMA trans- 26 fers, this output goes active (low) to indicate a memory read from the socket. During a DMA write (when -IORD is active) this output goes low if the ISA output TC is active (high), indicating to the card that the system's terminal count signal is active. During DMA reads (when -IOWR is active), this output remains high. 1 O-TS 2 or 3 2 mA 1 To differentiate the sockets, all CL-PD6722 pin names have either A_ or B_ prepended to the pin names indicated. For example, A_A[25:0] and B_A[25:0] are the independent address buses to the sockets. 2 When a socket is configured as an ATA drive interface, socket interface pin functions change. See Table 11-1 on page 75. 16 PIN INFORMATION PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters Table 2-2. Pin Name1 Socket Interface Pins (cont.) Pin Number Description2 CL-PD6710 Socket A Socket B 99 CL-PD6722 Qty . I/O Pwr. Drive -WE Write Enable: For non-DMA transfers, 37 this signal goes active (low) to indicate a memory write to the socket. During a DMA read (when -IOWR is active), this signal goes low if the ISA output TC is active (high), indicating to the card that the system's terminal count signal is active. During DMA writes (when -IORD is active), this output remains high. 37 1 O-TS 2 or 3 2 mA -IORD -IOWR WP/ -IOIS16 I/O Read: This output is driven low for 28 I/O reads from the socket. I/O Write: This output is driven low for 30 I/O writes to the socket. Write Protect / I/O Is 16-Bit: In Mem- 69 ory Card Interface mode (Interrupt and General Control register, bit 5 is equal to `0'), this input is the status of the PC card write protect switch. In I/O Card Interface mode, a low on this input indicates that the I/O address being accessed is capable of 16-bit operation. In DMA mode, this pin can be programmed as the -DREQ input from a DMA-capable PC Card. 26 29 68 90 92 131 1 1 O-TS O-TS 2 or 3 2 or 3 2 mA 2 mA 1 I-PU 2 or 3 - -INPACK Input Acknowledge: This input indi- 57 cates to the CL-PD67XX that the PC Card supports I/O access at the current address. A PC Card activates this input during IORD cycles to which the card can respond. In DMA mode, this pin can be programmed as the -DREQ input from a DMA-capable PC Card. 56 119 1 I-PU 2 or 3 - RDY/ -IREQ Ready / Interrupt Request: In Mem- 39 ory Card Interface mode, this input is readable as the status of bit 5 of the Interface Status register, which is used by a PC Card to signal system software of its ready or busy state. In I/O Card Interface mode, this activel ow i n p u t i n d i c a t e s a n i n t e r r u p t request. 39 101 1 I-PU 2 or 3 - 1 To differentiate the sockets, all CL-PD6722 pin names have either A_ or B_ prepended to the pin names indicated. For example, A_A[25:0] and B_A[25:0] are the independent address buses to the sockets. 2 When a socket is configured as an ATA drive interface, socket interface pin functions change. See Table 11-1 on page 75. May 1997 PRELIMINARY DATA SHEET v3.1 PIN INFORMATION 17 CL-PD6710/'22 ISA-to-PC-Card Host Adapters Table 2-2. Pin Name1 Socket Interface Pins (cont.) Pin Number Description2 CL-PD6710 Socket A Socket B 116 1 I-PU 2 or 3 - CL-PD6722 Qty . I/O Pwr. Drive -WAIT Wait: This input indicates to the 55 CL-PD67XX that the current card access cycle is to be extended until this signal becomes inactive (high). Card Detect: These inputs indicate to 70, 10 the CL-PD67XX the presence of a card in the socket. They are pulled high internally in the chip. Card Enable: These outputs are 25, 22 driven low by the CL-PD67XX during card access cycles to control byte/word card access. -CE1 enables even-numbered address bytes and -CE2 enables odd-numbered address bytes. When configured for 8-bit cards, only -CE1 will be active and A0 will be set to `1' for odd-byte accesses. Reset: This output will be high to reset 51 the card and low for normal operation. To reduce power consumption of idle cards and to prevent reset glitches to a card, this signal is high-impedance unless a card is fully seated in the socket and card interface signals are enabled. Battery Voltage Detect 2 / Speaker / 60 LED: In Memory Card Interface mode, this input serves as the BVD2 or battery warning status input. In I/O Card Interface mode, this input can be configured as a card's -SPKR binary audio input. For disk-drive support, BVD2/-SPKR/-LED can also be configured as a drive-status LED input. In DMA mode, this pin can be programmed as the -DREQ input from a DMA-capable PC Card. 54 -CD[2:1] 69, 10 132, 73 2 I-PU 1 - -CE[2:1] 22, 19 86, 83 2 O-TS 2 or 3 2 mA RESET 51 114 1 O-TS 2 or 3 2 mA BVD2/ -SPKR/ -LED 59 122 1 I-PU 2 or 3 - 1 To differentiate the sockets, all CL-PD6722 pin names have either A_ or B_ prepended to the pin names indicated. For example, A_A[25:0] and B_A[25:0] are the independent address buses to the sockets. 2 When a socket is configured as an ATA drive interface, socket interface pin functions change. See Table 11-1 on page 75. 18 PIN INFORMATION PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters Table 2-2. Pin Name1 Socket Interface Pins (cont.) Pin Number Description2 CL-PD6710 Socket A Socket B 124 CL-PD6722 Qty . I/O Pwr. Drive BVD1/ -STSCHG/ -RI Battery Voltage Detect 1 / Status 62 Change / Ring Indicate: In Memory Card Interface mode, this input serves as BVD1 (Battery Dead Status) input. In I/O Card Interface mode, this input is the -STSCHG input, which indicates to the CL-PD67XX that the card's internal status has changed. In I/O Card Interface mode, this input can alternately be used as -RI ring indicate when IRQ15/RI_OUT* is configured for RI Out (see page 62). 61 1 I-PU 2 or 3 - SOCKET_ VCC Connect these pins to the VCC supply 18, 52 of the socket (pins 17 and 51 of the respective PC Card socket). These pins can thus be 0, 3.3, or 5 V, depending on card presence, card type, and system configuration. The socket interface outputs (listed in this table, Table 2-2) will operate at the voltage applied to these pins, independent of t h e vo l t a g e a p p l i e d t o o t h e r CL-PD67XX pin groups. 24, 52 88, 117 2 PWR - - 1 To differentiate the sockets, all CL-PD6722 pin names have either A_ or B_ prepended to the pin names indicated. For example, A_A[25:0] and B_A[25:0] are the independent address buses to the sockets. 2 When a socket is configured as an ATA drive interface, socket interface pin functions change. See Table 11-1 on page 75. Table 2-3. General-Purpose Strobe / Voltage Sense Pins Pin Number Qty . Pin Name Description CL-PD6710 CL-PD6722 Socket A Socket B 7 I/O Pwr. Drive GPSTB General-Purpose Strobe: Connect - A_GPSTB to pin 43 and B_GPSTB to pin 57 on PC Card socket. This pin can be used with external logic to sense pins VS1 and VS2 of the socket. It is only available on the CL-PD6722. a, b This status input is used to detect 7 5 V/3.3 V on PCMCIA pin 57. 6 1 I-PU/ O-OC 1 2 mA 5V_DET a b - - 1 I-PU 1 N/A General-purpose strobe controlled by `Socket A' (index 2Eh/2Fh) Extension Control 2 register at extended index 0Bh. General-purpose strobe controlled by `Socket B' (index 6Eh/6Fh) Extension Control 2 register at extended index 0Bh. May 1997 PRELIMINARY DATA SHEET v3.1 PIN INFORMATION 19 CL-PD6710/'22 ISA-to-PC-Card Host Adapters Table 2-4. Power Control Pins Pin Number Qty . Pin Name Description CL-PD6710 CL-PD6722 Socket A Socket B 205 I/O Pwr. Drive VPP_VCC This output is used to enable the 3 socket V CC supply onto the V PP pin. This pin is mutually exclusive with VPP_PGM. This output is used to enable the pro- 2 gramming voltage supply onto the VPP pin. This pin is mutually exclusive with VPP_VCC. This output is used to enable a 3.3V 5 supply onto the VDD socket. This pin is mutually exclusive with -VCC_5. This output is used to enable a 5V sup- 6 ply onto the V DD socket. This pin is mutually exclusive with -VCC_3. 2 1 O 1 12 mA VPP_PGM 1 204 1 O 1 12 mA -VCC_3 4 206 1 O 1 12 mA 12 mA -VCC_5 5 207 1 O 1 Table 2-5. Pin Name +5V Power and Ground Pins Pin Number Description CL-PD6710 This pin is connected to the system's 5-volt 1 power supply. In systems where 5 volts is not available, this pin can be connected to the system's 3.3-volt supply (but 5-volt-only PC Cards will not be supported). This pin provides power to the core circuitry of 16, 91 the CL-PD67XX. It can be connected to either a 3.3- or 5-volt power supply, independent of the operating voltage of other interfaces. For power conservation on a system with a 3.3volt supply available, this pin should be connected to the 3.3-volt supply even if there is no intention of operating other interfaces on the device at less than 5 volts. All ground pins should be connected to sys- 20, 54, 72, 78, tem ground. 128, 133 Qty. CL-PD6722 208 1 I/O Pwr. Drive PWR - - CORE_VDD 27, 133 2 PWR - - GND 31, 70, 79, 111, 140, 192 6 GND - - 20 PIN INFORMATION PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters Table 2-6 below summarizes the pin usage. Table 2-6. Pin Usage Summary Pin Quantity Pin Group CL-PD6710 ISA bus interface pins Socket interface pins General-purpose strobe pins Voltage sense pins N/C Power control pins Power and ground pins Total: 69 60 0 1 1 4 9 144 CL-PD6722 69 120 2 0 0 8 9 208 2.4 Power-On Configuration Summary On the rising edge of PWRGOOD, the CL-PD67XX latches the configuration pin SPKR_OUT*/C_SEL to determine which sockets are addressed by this device. A `1' on the SPKR_OUT*/C_SEL pin will cause the device to address Socket 0 (and Socket 1 for the CL-PD6722). A `0' on this pin will cause the device to address Socket 2 (and Socket 3 for the CL-PD6722). Table 2-7. Chip Configuration at Power-up for Socket Support CL-PD6710 Socket Interface Support PC Card Socket 0 3E0 Index 00h-3Fh PC Card Socket 2 3E0 Index 80h-BFh SPKR_OUT*/C_SEL Level at Rising Edge of PWRGOOD High Low CL-PD6722 Socket A Interface Support PC Card Socket 0 3E0 Index 00h-3Fh PC Card Socket 2 3E0 Index 80h-BFh Socket B Interface Support PC Card Socket 1 3E0 Index 40h-7Fh PC Card Socket 3 3E0 Index C0h-FFh May 1997 PRELIMINARY DATA SHEET v3.1 PIN INFORMATION 21 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 3. INTRODUCTION 3.1 System Architecture This section describes PC Card basics, windowing, interrupts, CL-PD67XX power management, socket power management, write FIFO, bus sizing, programmable PC Card timing, and ATA and DMA mode operation. 3.1.1 PC Card Basics I/O-type PC Cards, such as modems, should also be directly addressable, as if the cards were I/O devices plugged into the ISA bus. For example, it would be highly desirable to have a PC Card modem accessible to standard communications software as if it were at a COM port. For COM1, this would require that the modem be accessed at system I/O address 3F8h-3FFh. The method of mapping a PC Card I/O address into anticipated areas of ISA I/O space is done similarly to memory windowing. I/O-type PC Cards usually have interrupts that need to be serviced by host software. For the example of a modem card accessed as if at COM1, software would expect the modem to generate interrupts on the IRQ4 line. To be sure all interrupts are routed as expected, the CL-PD67XX can steer the interrupt from the PC Card to one of several standard PC interrupts (see Section 3.1.4 and the Interrupt and General Control register on page 42). 3.1.2 CL-PD67XX Windowing Capabilities PCMCIA is an abbreviation for Personal Computer Memory Card International Association. PC Card Standard 1 is a standard for using memory and I/O devices as insertable, exchangeable peripherals for PCs (personal computers) and handheld computers. For simpler end-user and vendor implementation of the standard, systems employing PC Card Standard should also be backward-compatible with industry-standard PC addressing. The memory information for memory-type PC Cards must be mapped into the system memory address space. This is accomplished with a `windowing' technique that is similar to expanded memory schemes already used in PC systems (for example, LIM 4.0 memory manager). PC Cards can have attribute and common memory. Attribute memory is used to indicate to host software the capabilities of the PC Card, and it allows host software to change the configuration of the card. Common memory can be used by host software for any purpose (such as flash file system, system memory, and floppy emulation). For full compatibility with existing software, and to ensure compatibility with future memory cards and software, the CL-PD67XX provides five programmable memory windows per socket and two programmable I/O windows per socket. These windows can be used by an inserted PC Card to access ISA memory and I/O space. Having five memory windows per socket allows a memory-type card to be accessed through four memory windows programmed for common memory access (allowing PC-type expanded-memorystyle management), leaving the fifth memory window available to be programmed to access the card's attribute memory without disrupting the common memory in use. 1 The CL-PD67XX is backward-compatible with PCMCIA standards 1.0, 2.0, 2.01, and 2.1. The CL-PD67XX is also compatible with JEIDA 4.1 and its earlier standards corresponding with the PCMCIA standards above. 22 INTRODUCTION PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters Each of the five memory windows has several programming options, including: Memory Window Option Enabled Start Address Description Each of the five memory windows can be individually enabled. Disabled windows are not responded to. The starting address of the window is programmable on 4-Kbyte boundaries starting at 64 Kbytes (1000h) with a maximum address of 16 Mbyte. The ending address of the window is programmable on 4-Kbyte boundaries starting at 64 Kbytes (1000h) with a maximum address of 16 Mbyte. Only memory accesses between the starting and ending address are responded to. The offset address is added to the ISA address to determine the address for accessing the PC Card. This allows the addresses in the PC Card address space to be different from the ISA address space. The size of accesses can be set manually to either 8 or 16 bits. The timing of accesses (Setup/Command/Recovery) can be set by either of two timing register sets: Timer Set 0 or Timer Set 1. The -REG pin can be enabled on a per-window basis so that any of the windows can be used for accessing attribute memory. If the window is programmed to be write-protected, then writes to the memory window are ignored (reads are still performed normally). End Address Offset Address Data Size Timing Register Access Setting Write Protect Each of the two I/O windows has several programming options, including: I/O Window Option Enabled Start Address End Address Offset Address Auto Size Data Size Timing Description Each of the two I/O windows can be individually enabled. The starting address of the window is programmable on single-byte boundaries from 0 to 64 Kbytes. The ending address of the window is also programmable on single-byte boundaries from 0 to 64 Kbytes. The offset address is added to the ISA address to determine the address for accessing the PC Card. The size of accesses can be set automatically, based on the PC Card -IOIS16 signal. The size of accesses can be set manually to either 8 or 16 bits, overriding the Auto Size option. The timing of accesses (Setup/Command/Recovery) can be set by either of two timing register sets: Timer Set 0 or Timer Set 1. CAUTION: The windows of the CL-PD67XX should never be allowed to overlap with each other or the other devices in the system. This would cause collisions in the IOCS16*, MEMCS16*, IOCHRDY, and SD[15:0] signals, resulting in erratic behavior. May 1997 PRELIMINARY DATA SHEET v3.1 INTRODUCTION 23 CL-PD6710/'22 ISA-to-PC-Card Host Adapters ISA Memory Address Space 16 Mbytes PC Card Memory Address Space 64 Mbytes Common Memory Attribute Memory Card Memory Window System Memory Map End Address Registers Memory Window System Memory Map Start Address Registers First 64 Kbytes not usable in most ISA systems Card Memory Map Offset Address Registers NOTE: ISA memory window can map to either common or attribute PC Card memory. Figure 3-1. Memory Window Organization PC Card I/O Address Space 64 Mbytes Card I/O Window System I/O Map End Address Registers System I/O Map Start Address Registers ISA I/O Address Space 64 Kbytes I/O Window Card I/O Map Offset Address Registers Figure 3-2. I/O Window Organization 24 INTRODUCTION PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 3.1.3 CL-PD67XX Functional Blocks Per Chip Per Socket Control Address Bus Interface Unit Operation Registers Mapper and Offset Socket Bus Control Socket Timing Control WP/-IOIS16 -WAIT Control Data Data Clock Synthesizer Write FIFO Address CD1, CD2 BVD, -STSCHG RDY/-IREQ Power Control VCC Control VPP Control INTR IRQs Interrupt Control Figure 3-3. Functional Block Diagram 3.1.4 Interrupts The CL-PD67XX provides ten interrupt pins that are labeled with names suggesting their mapping in the system, though there are no hard requirements specifying the exact mapping. Typically, all ten interrupt pins should be connected to system interrupt signals to allow maximum flexibility in programming interrupt routing from the CL-PD67XX. Either class of interrupts can be routed to any of the ten interrupt pins on the CL-PD67XX. Connection of Interrupt Pins IRQ interrupts in PC-compatible systems are not generally shared by hardware. Therefore, each device in the system using IRQ interrupts must have a unique interrupt line. Additionally, many software applications assume that certain I/O devices use specific IRQ signals. To allow PC Cards with differing I/O functionalities to be connected to appropriate nonconflicting IRQ locations, the CL-PD67XX can steer the interrupt signal from a PC Card to any one of the ten different hardware interrupt lines. For some I/O-type cards, software is written so that IRQ interrupts can be shared. The CL-PD67XX contains unique logic that allows IRQ interrupts to be shared under software control. This is accomplished by programming the CL-PD67XX to alternately pulse and then three-state the desired interrupt pin, which has been programmed as an IRQ output. This unique IRQ interrupt sharing technique can be controlled through software so that systems incapable of IRQ sharing have no loss of functionality. 25 Classes of Interrupts The CL-PD67XX supports two classes of interrupts: q Socket or card interrupts initiated by the PC Card activating its RDY/-IREQ signal Management interrupts triggered by changes in PC Card status, including: -- Card insertion or removal -- Battery warning indicator (BVD2) change on a memory-type card -- Battery dead indicator (BVD1) or I/O-type card status change (-STSCHG) -- Ready (RDY) status change on a memorytype card q May 1997 PRELIMINARY DATA SHEET v3.1 INTRODUCTION CL-PD6710/'22 ISA-to-PC-Card Host Adapters 3.1.5 Alternate Functions of Interrupt Pins The CL-PD67XX has two interrupt pins that can be p r o gr a m m e d fo r a l t e r n a t e f u n c t i o n s : IRQ12/LED_OUT* and IRQ15/RI_OUT*. In addition, the CL-PD6722 allows IRQ9 and IRQ10 to be programmed for system DMA transfer handshake functions. 3.1.5.1 IRQ12 as LED_OUT* Driver If a disk-activity or card-cycle-activity indicator is desired, IRQ12/LED_OUT* can be programmed as an open-collector LED driver, capable of driving most common LEDs. There is no specific bit that programs the IRQ12 pin to become an LED driver; instead, whenever a socket interface is programmed to support a drive status LED input or is programmed to show card activity on the LED (as described below), the IRQ12 pin becomes reconfigured as an open-collector LED driver. The Extension Control 1 register's LED Activity Enable bit (extended index 03h bit 2) is used to enable the LED being used to show card activity. When this bit is set, any type of read or write cycles t o t h e r e s p e c t i ve s o c k e t c a u s e t h e IRQ12/LED_OUT* signal to be driven low for the duration of the card activity. The Drive LED Enable bit (Misc Control 2 register bit 4) is used to enable the BVD2/-SPKR/-LED input from an I/O-interfaced card to be interpreted as a drive LED input, where an open-collector signal driven low on this input will cause the IRQ12/LED_OUT* open-collector output to go low. Any combination of settings of LED Activity Enable and Drive LED Enable bits can be used on each socket, with each type of activity being able to separately cause the LED to be illuminated. Status from non-present or non-activated cards is autom a t i c a l l y m a s ke d o f f f r o m c a u s i n g t h e IRQ12/LED_OUT* signal to be driven low. 3.1.5.2 IRQ15 as RI_OUT* If the capability to `wake up' a system on an incoming phone call to a PC Card modem is desired, it may be necessary in some systems to use a dedicated wakeup signal to the system's SMI or NMI controller to facilitate this instead of using the normal interrupt connections. If this is the case, the 26 IRQ15 connection can be reprogrammed to pass through a qualified version of an I/O interfaced card's -RI signal. IRQ15/RI_OUT* is programmed as RI_OUT* by programming the IRQ15 Is RI Out bit (Misc Control 2 register 1Eh bit 7) to `1'. Then if a particular socket suppor ting a modem is to have its BV D 1 / - S T S C H G / - R I p i n p a s s e d t o t h e IRQ15/RI_OUT* pin, that socket's Ring Indicate Enable bit (Interrupt and General Control register 03h bit 7) should be set to `1'. When the CL-PD67XX is configured this way, a low level at the BVD1/-STSCHG/-RI pin on an I/O interfaced PC Card will cause the IRQ15/RI_OUT* signal to become active-low (because it is intended to be connected to an SMI* or NMI* input on the system processor or core logic). To prevent multiple SMI or NMI interrupts from occurring on one ring condition, the IRQ15/RI_OUT* pin remains low until ISA bus activity resumes, indicated by the resumption of ISA bus memory or I/O reads or writes. 3.1.5.3 IRQ9 as DACK* and IRQ10 as DRQ When a CL-PD6722 is to be used for DMA support, IRQ9 is programmed as a DACK* input from an ISA bus DACK* signal selected by the system designer. Similarly, IRQ10 is programmed as an active-high DRQ output to the ISA bus and should be connected to the system bus DRQ signal corresponding to that used for DACK*. IRQ9 and IRQ10 are thus redefined for DMA cycle support by the setting of the DMA System bit (Misc Control 2 register 1Eh, bit 6) to `1'. Setting the DMA System bit redefines these ISA interface signals but does not cause DMA to a card to be enabled. 3.1.6 General-Purpose Strobe Feature The CL-PD6722 has capability to use two pins as general-purpose strobes. This is a feature that causes a pin programmed as a general-purpose strobe to appear in software as an extended register in the CL-PD6722 register set, while in reality accesses to this extended register cause the general-purpose strobe pin to go active during the register access. The strobe can be programmed to May 1997 INTRODUCTION PRELIMINARY DATA SHEET v3.1 CL-PD6710/'22 ISA-to-PC-Card Host Adapters activate on reads or writes to this virtual extended register, allowing straightforward single-chip implementation of an 8-bit general purpose read or write port. Chapter 12 provides detailed information on how this port can be used. 3.1.7 Voltage Sense Pins The CL-PD6710 provides a single pin to detect 5 V or 3.3 V on pin 57 of the PC Card. The CL-PD6722 can be simply configured for dualsocket VS1 and VS2 detection with an external read port consisting of half of a '244 buffer or other similar device, enabled by the B_GPSTB pin programmed as a read port. Chapter 13 provides detailed information on the programming model for VS1 and VS2 detection and how connections are made to achieve this functionality. 3.1.8 CL-PD67XX Power Management trol 2 register, bit 2 to `1'. In Suspend mode, all the internal clocks are turned off, and only read/write access to the Index register and write access to the Misc Control 2 register is supported. All accesses to the PC Cards are ignored when in Suspend mode. V CC and V PP power to the card is left unchanged (the system power management software is responsible for turning off power to the socket and entering Suspend mode). Interrupts and ring indicate signals are passed through to the system bus when in Suspend mode. To exit Suspend mode, the Misc Control 2 register bit 2 must be reset to `0'. It requires 50 ms for the CL-PD67XX to restart the internal clock synthesizer and become active again. In addition to the software suspend, if the system hold's the AEN signal of the CL-PD67XX high, a hardware-assisted Super-Suspend mode occurs where ISA inputs to the chip are internally shut off. Internal in the CL-PD67XX, the ISA inputs are ignored and floating conditions on the ISA bus will not cause high current flow in the CL-PD67XX ISA input receivers. Since the ISA bus inputs to the core logic of the CL-PD67XX are also not toggling when AEN is set high, power consumption is further reduced. Interrupts and ring indicate signals are passed through to the system bus when in SuperSuspend mode The CL-PD67XX power can be further managed by controlling socket power as outlined in Section 3.1.9. Socket power can be turned on and off through software or automatically when cards are inserted or removed. The CL-PD67XX provides six pins per socket for controlling external logic to switch VCC and VPP voltages on and off and for sensing a card's operating voltage range. Cards can be turned off when not in use. To provide the longest possible battery life, the CL-PD67XX provides many power management features, including Low-Power Dynamic mode, Suspend mode, and control of PC Card socket power. Low-Power Dynamic mode is transparent to the ISA bus. After reset, the CL-PD67XX is configured for Low-Power Dynamic mode. This mode can be turned off by setting Misc Control 2 register, bit 1 to `0'. When in Low-Power Dynamic mode, periods of inactivity (no activity on the PC Card bus and system accesses to chip registers or inserted cards are no longer being performed) cause the CL-PD67XX to enter a low-power state where the clock is turned off to most of the chip and the PC Card address and data lines are set to a static value. VCC and VPP power to the card is left unchanged. When there is activity present on the PC Card bus, or the system accesses CL-PD67XX registers, or PC Cards are inserted or removed from the socket, the CL-PD67XX enters its active state, services the transaction, and then returns to its low-power state. A Suspend mode can also be programmed. The CL-PD67XX Suspend mode is the chip's lowest software-controlled power mode. The CL-PD67XX is put into Suspend mode by setting the Misc ConMay 1997 PRELIMINARY DATA SHEET v3.1 INTRODUCTION 27 CL-PD6710/'22 ISA-to-PC-Card Host Adapters Table 3-1. CL-PD67XX Power-Management Modes Misc Control 2 Register PWRGOOD Level Low-Power Dynamic Mode (Bit 1) Typical Power Consumption (CORE_VDD = 3.3 V, ISA_VCC, SOCKET_VCC, and +5V = 5.0 V) < 45 mW high activity, 9-14 mW normal system activity < 85 mW high activity, 18 mW normal system activity Mode Name AEN Suspend Mode (Bit 2) Functionality Low-Power Dynamic (Default) Normal High Normal 0 1 Full functionality High Normal 0 0 Full functionality 8-bit access to Misc Control 2 register. No other register access. No card in socket(s). No register access. No card in socket(s). System bus signals disabled (clock off). No register access. No card in socket(s). System bus signals disabled. Suspend (Software Controlled) High Normal 1 - < 2 mW Super-Suspend (Hardware Controlled) High Static High 1 - < 1 mW Reset Low a - - - 9-14 mW a IOR*, IOW*, MEMR*, and MEMW* must be held high when PWRGOOD is low to prevent manufacturing test mode outputs from driving the system data bus. 3.1.9 Socket Power Management Features Card Removal When a card is removed from a socket, the CL-PD67XX by default automatically disables the VCC and VPP supplies to the socket. If Extension Control 1 register bit 1 is `0', card power is prevented from being automatically disabled when a card is removed. The CL-PD67XX can also be configured to have management interrupts notify software of card removal. If the CL-PD67XX has been set for automatic power-on (Power Control register bits 4 and 5 are both `1'), the CL-PD67XX automatically enables the socket VCC supply (and, if so programmed, the VPP supply). If the CL-PD67XX has been programmed to cause management interrupts for card-detection events, assertion of -CD1 and -CD2 to the CL-PD67XX causes a management interrupt to inform system software that a card was inserted. In the case of manual power detection (Power Control register bit 5 is `0'), system software can determine the card's operating voltage range and then power-up the socket and initialize the card (or simply initialize the card if programmed for automatic power-on (Power Control register bit 5 is `1' and Extension Control 1 register bit 1 is `1')). Card Insertion Power to the socket is off at reset and whenever there is no card in a socket. When a card is detected (card detect input pins, -CD1 and -CD2, to the CL-PD67XX become asserted low), two independent actions can be programmed to occur. 28 INTRODUCTION PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 3.1.10 Write FIFO To increase performance when writing to PC Cards, two, independent, four-word-deep write FIFOs are used. Writes to PC Cards will complete without wait states until the FIFO is full. Register states should not be changed until the write FIFO is empty. 3.1.11 Bus Sizing Typically, there are three types of data transfers to and from the CL-PD67XX: q The CL-PD67XX incorporates logic to automatically detect its connection to 8- or 16-bit buses. This is accomplished by sensing SBHE* input activity. If the SBHE* pin is always high (that is, tied to ISA_VCC), the CL-PD67XX operates in 8-bit mode where all transfers occur on the lower data bus, bits 7:0. Any occurrence of the SBHE* going low triggers the CL-PD67XX to operate thereafter as a 16-bit device. 16-bit operation of the CL-PD67XX is properly triggered when the SBHE* input is connected to the system's SBHE* signal. When the CL-PD67XX is operating in 16-bit mode, all ISA bus transactions are 16-bit whenever possible, even if installed PC cards only support 8-bit transfers. In 16-bit mode, the signals SBHE* and SA0 are used to specify the width of the data transfer and the location of data on the bus (which byte lane has the data) during 8-bit transfers. The possible combinations for SBHE* and SA0 are shown in Table 3-2 and Table 3-3. Table 3-2. 16-Bit Mode Operation SBHE* 0 0 1 1 16-Bit Transfer from 16-Bit Processor -- The CPU puts the address on the bus. Then the CL-PD67XX identifies the address on the bus as either an 8- or 16-bit transfer. If the transfer is identified as 16-bit, the host acknowledges with the appropriate signal, either MEMCS16* or IOCS16*. Data is transferred to/from the data bus as a word on both byte lanes. 8-Bit Transfer from 16-Bit Processor -- The CPU puts the address on the bus. Then the CL-PD67XX identifies the address on the bus as either an 8- or 16-bit transfer. In this case, the transfer is identified as an 8-bit transfer. The host queries SA0 and SBHE* to determine the byte lane on which the transfer is to occur. The data is transferred to/from the data bus (see Table 3-2). 8-Bit Transfer from 8-Bit Processor -- The CPU puts the address on the bus. The host determines that it will be an 8-bit transfer since the SBHE* signal has been tied high. The CL-PD67XX queries SA0 to determine if the byte is odd/even. The data is transferred to/from the Data bus (D[7:0]). q q 3.1.12 Programmable PC Card Timing 16-Bit Mode Transfer Types Word Upper Byte/Odd Address Low Byte/Even Address Not Valid SA0 0 1 0 1 The Setup, Command, and Recovery time for the PC Card bus is programmable (see Chapter 10). The CL-PD67XX can be programmed to match the timing requirements of any PC Card. There are two sets of timing registers, Timer Set 0 and Timer Set 1, that can be selected on a per-window basis for both I/O and memory windows. To be compatible with the 82365SL, the two timing sets are programmed at the rising edge of PWRGOOD to include normal-wait and one-waitstate timing. 3.1.13 ATA Mode Operation Table 3-3. 8-Bit Mode Operation SA0 0 1 8-Bit Mode Transfer Types a Even Address Odd Address a The SBHE* signal is pulled up. If the SBHE* signal remains high, the CL-PD67XX causes all transfers to occur on D[7:0] only. The CL-PD67XX supports direct connection to AT-attached-interface hard drives. ATA drives use an interface very similar to the IDE interface found on many popular portable computers. In this mode, the address and data conflict with the floppy drive is handled automatically. See Chapter 11 for more information. May 1997 PRELIMINARY DATA SHEET v3.1 INTRODUCTION 29 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 3.1.14 DMA Mode Operation for the CL-PD6722 A slave mode Direct Memory Access (DMA) feature exists in the CL-PD6722. To use DMA mode, the Interrupt and General Control register, bit 5 must be set to `1' to operate the PC Card in I/O Card Interface mode. PC Card interface DMA handshake signal options must also be selected. Refer to the description of the Extension Control 1 register on page 66 as well as Chapter 14. 3.1.15 Selective Data Drive for I/O Windows CL-PD67XX can be programmed through use of its Data Mask registers to disable bit 7 on I/O reads at addresses 3F7h and 377h. This is done by programming up I/O windows to these addresses as part of the task of configuring a socket for ATA drive support (see page 65). Alternately, all bits except bit 7 can also be disabled to allow the opposite case. 3.2 Host Access to Registers The CL-PD67XX registers are accessed through an 8-bit indexing mechanism. An index register scheme allows a large number of internal registers to be accessed by the CPU using only two I/O addresses. The Index register (see Chapter 5) is used to specify which of the internal registers the CPU will access next. The value in the Index register is called the Register Index. This number specifies a unique internal register. The Data register is used by the CPU to read and write the internal register specified by the Index register. The CL-PD67XX can be programmed to drive only some of the ISA bus data pins on reads from I/O windows. This reduces data contention for I/O addresses that include more than one peripheral. In the standard IBM(R) PC AT, I/O map, floppy disk, and hard disk share address 3F7h. The floppy disk drives ISA-data-bus bit 7 on a read from 3F7h, and the hard disk drives bits 6:0. To allow both floppy disk controllers on the motherboard and hard disks on the PC Card bus (or vice versa) to coexist, the Internal Registers FFh FEh Register * Indexes * * 02h 01h 00h High Byte Low Byte Data Index 3E1h 3E0h I/O Addresses Figure 3-4. Indexed 8-Bit Register Structure 30 INTRODUCTION PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters Internal Registers The following code segment demonstrates use of an indexed 8-bit register: Register Indexes 3Ch AH 3Ch 3E1h I/O Addresses 02h 3E0h 02h AL mov mov mov out dx, al, ah, dx, 3E0h 02h 3Ch ax Figure 3-5. Indexed 8-Bit Register Example Double-Indexed Registers The CL-PD67XX has Extension registers that add to the functionality of the 82365SL-compatible register set. Within the Extension registers is an Extended Index register and Extended Data register that provide access to more registers. The registers accessed through Extended Index and Extended Data are thus double indexed. The example below shows how to access the Extension Control 1 register, one of the double-indexed registers. ;Write to Extension Control 1 register example ;Constants section Extended_IndexEQU 2Eh Index_RegEQU 2Fh Ext_Cntrl_1EQU 03h PD67XX_IndexEQU 3E0h ;Code section mov dx, PD67XX_Index mov al, Extended_Index mov ah, Ext_Cntrl_1 out dx, ax mov al, Index_Reg mov ah, user_data;Desired data to be out dx, ax;written to ;extended index 03h ;Read from Extension Control 1 register example ;Code section mov dx, PD67XX_Index mov al, Extended_Index mov out mov out inc in ah, Ext_Cntrl_1 dx, ax al, Index_Reg dx, al dx ;al has extended al, dx;index 03h data 3.3 Power-On Setup Following reset, the CL-PD67XX must be configured by host software. The host software's setup procedure is different depending on its PC system configuration, in particular, the power supply arrangement. The application of the RESET signal (see page 18) on power-up causes initialization of all the CL-PD67XX register bits and fields to their reset values. Not all registers have reset values; only registers with bits and fields specified to have reset values are initialized. One bit, which is loaded on hardware reset from the SPKR_OUT*/C_SEL pin (see page 15), is used to determine the socket to which the CL-PD67XX will respond. May 1997 PRELIMINARY DATA SHEET v3.1 INTRODUCTION 31 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 4. REGISTER DESCRIPTION CONVENTIONS Register Headings The description of each register starts with a header containing the following information: Header Field Register Name Index a Bit Naming Conventions The following keywords are used within bit and field names: Keyword Enable Description Indicates that the function described in the rest of the bit name is active when the bit is `1'. Indicates that the function described in the rest of the bit name is active when the bit is `0'. Indicates that the function of the bit alters the interpretation of the values in other registers. Indicates a bit or field that is read from a pin. Indicates a bit or field that is driven to a pin. Indicates that the bit or field selects between multiple alternatives. Fields that contain Select in their names have an indirect mapping between the value of the field and the effect. Indicates one of two types of bits: either read-only bits used by the CL-PD67XX to report information to the system, or bits set by the CL-PD67XX in response to an event, and can also be cleared by the system. The system cannot directly cause a Status bit to become `1'. Indicates that the bit or field value is used as a number. Description Indicates the register name. The Index value through which an internal register in an indexed register set is accessed. Indicates whether the register affects both sockets, marked chip, or an individual socket, marked socket. If socket is indicated, there are two registers being described, each with a separate Index value (one for each socket, A and B). a I nd i c a t e s w h e t h e r t h e r e g i s t e r i s 82365SL-compatible, marked 365 or a register extension, marked ext. Disable Mode Input Output Register Per Register Compatibility Type a Select When the register is socket-specific, the Index value given in the register heading is for Socket A only. For the Socket B register on the CL-PD6722, add 40h to the Index value of the Socket A register. Status Special Function Bits Following is a description of bits with special functions: Bit Type Reserved Compatibility Bit Value Description These bits are Reserved and should not be changed. These bits have no function on the CL-PD67XX, but are included for compatibility with the 82365SL register set. These read-only bits are forced to either ` 0' o r ` 1 ' a t r e s e t a n d c a n n o t b e changed. These read/write bits are available for use as bits of memory. Read/Write Convention Bit Access RW:n Description Bit is read/write and resets to value n when PWRGOOD is cycled. Bit is read-only and setting is determined by conditions noted. Set this bit to `0', or echo back value read. Bit is read-only and resets to value n when PWRGOOD is cycled. Set this bit to `0', or echo back value read. Bit is read/write and resets to value n when PWRGOOD is cycled. Set this bit to value m only. 0 or 1 R Scratchpad Bit R:n R:n W:m 32 REGISTER DESCRIPTION CONVENTIONS PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 5. OPERATION REGISTERS The CL-PD67XX internal registers are accessed through a pair of Operation registers -- an Index register and a Data register. The Index register is accessed at address 03E0h, and the Data register is accessed at 03E1h. 5.1 Index Register Name: Index Index: n/a Bit 7 Device Index RW:0 Register Per: chip Register Compatibility Type: 365 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Bit 6 Socket Index RW:0 Register Index RW:000000 The Data register is accessed at 03E1h. Bits 5:0 -- Register Index These bits determine which of the 64 possible socket-specific registers will be accessed when the Data register is next accessed by the processor. Note that some values of the Register Index field are reserved (see Table 5-1). Bit 6 -- Socket Index This bit determines which set of socket-specific registers is currently selected. When this bit is `0', a Socket A register is selected. When this bit is `1', a Socket B register is selected. Note that the CL-PD6710 supports one socket, and the CL-PD6722 supports two sockets. Bit 7 -- Device Index In systems where two CL-PD67XXs are used, this bit differentiates between them. The Index register value determines which internal register should be accessed (read or written) in response to each CPU access of the Data register. Each of the possible PC Card sockets is allocated 64 of the 256 locations in the internal register index space. FFh Socket D Registers Possible with two CL-PD67XXs 80h 7Fh 40h 3Fh 00h Socket C Registers Socket B Registers Socket A Registers Figure 5-1. Device/Socket/Register Index Space When viewed as a 8-bit value, the contents of the Index register completely specify a single internal-register byte. For example, when the value of this register is in the range 00h-3Fh, a Socket A register is selected (Socket Index bit is `0'), and when the value of this register is in the range 40h-7Fh, a Socket B register is selected (Socket Index bit is `1'). This register only reads back for Device 0. Device 1 will read back only the upper data byte when 16-bit reads occur at 3E0h. May 1997 PRELIMINARY DATA SHEET v3.1 OPERATION REGISTERS 33 CL-PD6710/'22 ISA-to-PC-Card Host Adapters The internal register that is accessed when the CPU reads or writes the Data register is determined by the current value of the Index register, as follows: Table 5-1. Index Registers Index Value Socket A 01h 02h 03h 04h 05h 06h 07h 08h 09h 0Ah 0Bh 0Ch 0Dh 0Eh 0Fh 10h 11h 12h 13h 14h 15h 16h 17h 18h 19h 1Ah 1Bh 1Ch 1Dh 1Eh b 1Fh b 20h 21h 22h 23h 24h 25h 60h 61h 62h 63h 64h 65h Chapter 8: Memory Window Mapping Register Name Chip Revision Interface Status Power Control Interrupt and General Control Card Status Change Management Interrupt Configuration Mapping Enable I/O Window Control System I/O Map 0 Start Address Low System I/O Map 0 Start Address High System I/O Map 0 End Address Low System I/O Map 0 End Address High System I/O Map 1 Start Address Low System I/O Map 1 Start Address High System I/O Map 1 End Address Low System I/O Map 1 End Address High System Memory Map 0 Start Address Low System Memory Map 0 Start Address High System Memory Map 0 End Address Low System Memory Map 0 End Address High Card Memory Map 0 Offset Address Low Card Memory Map 0 Offset Address High Misc Control 1 FIFO Control System Memory Map 1 Start Address Low System Memory Map 1 Start Address High System Memory Map 1 End Address Low System Memory Map 1 End Address High Card Memory Map 1 Offset Address Low Card Memory Map 1 Offset Address High Misc Control 2 Chip Information System Memory Map 2 Start Address Low System Memory Map 2 Start Address High System Memory Map 2 End Address Low System Memory Map 2 End Address High Card Memory Map 2 Offset Address Low Card Memory Map 2 Offset Address High Socket B a 41h 42h 43h 44h 45h 46h 47h 48h 49h 4Ah 4Bh 4Ch 4Dh 4Eh 4Fh 50h 51h 52h 53h 54h 55h 56h 57h 58h 59h 5Ah 5Bh 5Ch 5Dh Chapter Page Number 37 38 40 00h b Chapter 6: Chip Control 42 44 45 47 49 50 50 51 51 50 50 51 51 53 54 Chapter 7: I/O Window Mapping Chapter 8: Memory Window Mapping 54 55 56 56 58 60 53 54 54 55 56 56 61 63 53 54 54 55 56 56 Chapter 9: Extension Chapter 8: Memory Window Mapping Chapter 8: Memory Window Mapping Chapter 9: Extension 34 OPERATION REGISTERS PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters Table 5-1. Index Registers (cont.) Index Value Socket A 26h 27h 28h 29h 2Ah 2Bh 2Ch 2Dh 2Eh Register Name ATA Control Socket B a 66h 67h 68h 69h 6Ah 6Bh 6Ch 6Dh 6Eh Chapter Chapter 9: Extension - Page Number 64 - 53 54 Scratchpad System Memory Map 3 Start Address Low System Memory Map 3 Start Address High System Memory Map 3 End Address Low System Memory Map 3 End Address High Card Memory Map 3 Offset Address Low Card Memory Map 3 Offset Address High Extended Index: c Chapter 8: Memory Window Mapping 54 55 56 56 65 - 65 66 66 67 - 69 71 65 53 54 Scratchpad Data Mask 0 Data Mask 1 Extension Control 1 (formerly DMA Control) Maximum DMA Acknowledge Delay Reserved External Data Extension Control 2 Extended Data System Memory Map 4 Start Address Low System Memory Map 4 Start Address High System Memory Map 4 End Address Low System Memory Map 4 End Address High Card Memory Map 4 Offset Address Low Card Memory Map 4 Offset Address High Card I/O Map 0 Offset Address Low Card I/O Map 0 Offset Address High Card I/O Map 1 Offset Address Low Card I/O Map 1 Offset Address High Setup Timing 0 Command Timing 0 Recovery Timing 0 Setup Timing 1 Command Timing 1 Recovery Timing 1 a b Extended index 00h Extended index 01h Extended index 02h Extended index 03h Extended index 04h Extended index 05h-09h Extended index 0Ah Extended index 0Bh 2Fh 30h 31h 32h 33h 34h 35h 36h 37h 38h 39h 3Ah 3Bh 3Ch 3Dh 3Eh 3Fh 6Fh 70h 71h 72h 73h 74h 75h 76h 77h 78h 79h 7Ah 7Bh 7Ch 7Dh 7Eh 7Fh Chapter 9: Extension Chapter 8: Memory Window Mapping 54 55 56 56 52 Chapter 7: I/O Window Mapping 52 52 52 72 73 74 72 73 74 Chapter 10: Timing Socket B is available on the dual-socket CL-PD6722. This register affects both sockets (it is not specific to either socket). c These registers are not available on the CL-PD6710. May 1997 PRELIMINARY DATA SHEET v3.1 OPERATION REGISTERS 35 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 5.2 Data Register Name: Data Index: n/a Bit 7 Bit 6 Bit 5 Bit 4 Data Bit 3 Bit 2 Register Per: chip Register Compatibility Type: 365 Bit 1 Bit 0 The Data register is accessed at 03E1h. This register indicates the contents of the register at the Device/Socket/Register Index selected by the Index register. 36 OPERATION REGISTERS PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 6. CHIP CONTROL REGISTERS 6.1 Chip Revision Register Name: Chip Revision Index: 00h Bit 7 Bit 6 Interface ID R:10 a Register Per: chip Register Compatibility Type: 365 Bit 5 0 R:0 Bit 4 0 R:0 Bit 3 Bit 2 Revision R:0010 a Bit 1 Bit 0 Value for the current stepping only. Bits 3:0 -- Revision This field indicates compatibility with the 82365SL A-step. Bits 7:6 -- Interface ID 00 01 10 11 I/O only. Memory only. Memory and I/O. Reserved. These bits identify what type of interface this controller supports. May 1997 PRELIMINARY DATA SHEET v3.1 CHIP CONTROL REGISTERS 37 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 6.2 Interface Status Register Name: Interface Status Index: 01h Bit 7 Bit 6 Bit 5 -VPP_VALID RDY Register Per: socket Register Compatibility Type: 365 Bit 4 WP Bit 3 -CD2 Bit 2 -CD1 Bit 1 BVD2 Bit 0 BVD1 VPP Valid Ra a b Card Power On R:0 Ready/Busy* Rb Write Protect Rc Card Detect Rd Battery Voltage Detect Re Bit 7 is the inversion of the value of the -VPP_VALID pin (see page 15). Bit 5 is the value of the RDY/-IREQ pin (see page 17). c Bit 4 is the value of the WP/-IOIS16 pin (see page 17). d Bits 3:2 are the inversion of the values of the -CD1 and -CD2 pins (see page 18). e Bits 1:0 are the values of the BVD1/-STSCHG and BVD2/-SPKR pins (see page 18). Bits 1:0 -- Battery Voltage Detect BVD2 Input Level Low Low High High BVD1 Input Level Low High Low High Bit 1 0 0 1 1 Bit 0 0 1 0 1 PC Card Interpretation Card data lost Battery low warning Card data lost Battery/data okay These bits are used by PC Card support software and firmware to indicate the amount of capacity left in the battery in battery-backed cards in Memory Card Interface mode only. In I/O Card Interface mode, bit 0 indicates the state of the BVD1/-STSCHG pin (see page 19). Bit 1 status should be ignored in I/O Card Interface mode. Bits 3:2 -- Card Detect -CD2 Level High High Low Low -CD1 Level High Low High Low Bit 3 0 0 1 1 Bit 2 0 1 0 1 Card Detect Status Either no card or card is not fully inserted Card is not fully inserted Card is not fully inserted Card is fully inserted These bits indicate the state of the -CD1 and -CD2 pins (see page 18). Bit 4 -- Write Protect 0 1 Card is not write protected. Card is write protected. This bit indicates the state of the WP/-IOIS16 pin (see page 17) on the card and has meaning only in Memory Card Interface mode. 38 CHIP CONTROL REGISTERS PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters Bit 5 -- Ready/Busy* 0 1 Card is not ready. Card is ready. This bit indicates the state of the RDY/-IREQ pin (see page 17) on the card. If the card has been configured for I/O, then this bit will not be valid. Bit 6 -- Card Power On 0 1 Power to the card is not on. Power to the card is on. This status bit indicates whether power to the card is on. Refer to Table 5-1 on page 34 for details. Bit 7 -- VPP Valid 0 1 This status bit indicates a logic high at the -VPP_VALID pin. This status bit indicates a logic low at the -VPP_VALID pin. This bit indicates the status of the -VPP_VALID pin (see page 15). May 1997 PRELIMINARY DATA SHEET v3.1 CHIP CONTROL REGISTERS 39 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 6.3 Power Control Register Name: Power Control Index: 02h Bit 7 Bit 6 Card Enable RW:0 Register Per: socket Register Compatibility Type: 365 Bit 5 Bit 4 VCC Power RW:0 Bit 3 Bit 2 Bit 1 Bit 0 Compatibility Bit RW:0 Auto-Power RW:0 Compatibility Bits RW:00 VPP1 Power RW:00 Table 6-1. Enabling of Socket Power Controls Power Control Register Bit 4: VCC Power X 0 PWRGOOD Level Bit 5: AutoPower X X -CD1 and -CD2 Both Active Low Interface Status Register (see page 38) Bit 6: Card Power On 0 0 -VCC_3 and -VCC_5 Levels VPP1_PGM and VPP1_VCC Levels Low High X X Inactive high Inactive high Activated per Misc Control 1 register, bit 1 Inactive high Activated per Misc Control 1 register, bit 1 Inactive low Inactive low Activated per Power Control register, bits 1 and 0 Inactive low Activated per Power Control register, bits 1 and 0 High 1 0 X 1 High 1 1 No 0 High 1 1 Yes 1 Table 6-2. PWRGOOD Level Low High High High High High Enabling of Outputs to Card Socket -CD1 and -CD2 Both Active Low X No Yes Yes Yes Yes Power Control Register Bit 4: VCC Power X X 0 0 1 1 Bit 7: Card Enable X X 0 1 0 1 CL-PD67XX Signal Outputs to Socket High impedance High impedance High impedance Enabled High impedance Enabled 40 CHIP CONTROL REGISTERS PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters Bit Name VCC Power Auto-Power Card Enable Value 1 1 1 Description Enables VCC to level described by VCC 3.3V (see page 58) Enables Auto-power mode Enables socket output drivers Bits 1:0 -- VPP1 Power VPP1 Power Bit 1 Bit 0 0 0 1 1 a VPP_PGM Inactive low Inactive low Active high a Inactive low VPP_VCC Inactive low Active high a PC Card Intended Socket Function Zero volts to PC Card socket VPP1 pin Selected card VCC to PC Card socket VPP1 pin +12V to PC Card socket VPP1 pin Zero volts to PC Card socket VPP1 pin 0 1 0 1 Inactive low Inactive low Under conditions where VPP1 power is activated. See Table 6.3. These bits are intended to be used to control the power to the VPP1 pin of the PC Card. Bit 4 -- VCC Power 0 1 Power is not applied to the card: the -VCC_3 and -VCC_5 socket power control pins are inactive high. Power is applied to the card: if bit 5 is `0', or bit 5 is `1' and -CD2 and -CD1 are active low, then the selected -VCC_3 or -VCC_5 socket power control pin is active low. Depending on the value of bit 5 below, setting this bit to `1' will cause power to be applied to the card. The VCC 3.3V bit (see page 58) determines whether 3.3V or 5V power is applied. Bit 5 -- Auto-Power 0 1 VCC and VPP1 power control signals are activated independent of the socket's -CD2 and -CD1 input levels. VCC and VPP1 power control signals are only activated if the socket's -CD2 and -CD1 inputs are active low. When this bit is set to `1', the CL-PD67XX causes power to the card to be turned on and off automatically with the insertion and removal of a PC card from the socket. Bit 7 -- Card Enable 0 1 Outputs to card socket are not enabled and are floating. Outputs to card socket are enabled if -CD1 and -CD2 are active low and bit 4 is `1'. When this bit is `1', the outputs to the PC Card are enabled if a card is present and card power is being supplied. The pins affected include: -CE2, -CE1, -IORD, -IOWR, -OE, -REG, RESET, A[25:0], D[15:0], and -WE (see page 17). May 1997 PRELIMINARY DATA SHEET v3.1 CHIP CONTROL REGISTERS 41 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 6.4 Interrupt and General Control Register Name: Interrupt and General Control Index: 03h Bit 7 Bit 6 Bit 5 Bit 4 Ring Indicate Enable RW:0 Register Per: socket Register Compatibility Type: 365 Bit 3 Bit 2 Bit 1 Bit 0 Card Reset* RW:0 Card Is I/O RW:0 Enable Manage Int RW:0 Card IRQ Select RW:0000 Bits 3:0 -- Card IRQ Select 0000 0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011 1100 1101 1110 1111 IRQ disabled Reserved Reserved IRQ 3 IRQ 4 IRQ 5 Reserved IRQ 7 Reserved IRQ 9 (On the CL-PD6722, this output may alternately be used as an ISA bus DACK* signal) IRQ 10 (On the CL-PD6722, this output may alternately be used as an ISA bus DRQ signal) IRQ 11 IRQ 12 (This output may alternately be used for LED) Reserved IRQ 14 IRQ 15 (This output may alternately be used for ring indicate) These bits determine which IRQ will occur when the card causes an interrupt through the RDY/-IREQ pin on the PC Card connector. Bit 4 -- Enable Manage Int 0 1 Card status management interrupts occur as programmed by Management IRQ Select bits (bits 7:4 of Management Interrupt Configuration register, see page 46). Card status management interrupts are redirected to the -INTR line instead of the programmed IRQ pin. This bit determines how management interrupts will occur. Bit 5 -- Card Is I/O 0 1 Memory Card Interface mode: card socket configured to support memory cards. Dual-function socket interface pins perform memory card-type interface functions. I/O Card Interface mode: card socket configured to support I/O/memory card-type interface functions. Dual-function socket interface pins perform I/O/memory card-type interface functions. This bit determines how dual-function socket interface pins will be used. 42 CHIP CONTROL REGISTERS PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters Bit 6 -- Card Reset* 0 1 The RESET signal to the card socket is set active (high for normal, low for ATA mode). The RESET signal to the card socket is set inactive (low for normal, high for ATA mode). This bit determines whether the RESET signal (see page 18) to the card is active or inactive. When the Card Enable bit (see page 41) is `0', the RESET signal to the card will be high-impedance. See Chapter 10 for further description of ATA mode functions. Bit 7 -- Ring Indicate Enable 0 1 BVD1/-STSCHG pin is status change function. BVD1/-STSCHG pin is ring indicate input pin from card. This bit determines whether the -STSCHG input pin is used to activate the IRQ15 pin in conjunction with Misc Control 2, IRQ15 Is RI Out (see page 62). This bit has no significance when the card socket is configured for memory card operation. May 1997 PRELIMINARY DATA SHEET v3.1 CHIP CONTROL REGISTERS 43 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 6.5 Card Status Change Register Name: Card Status Change Index: 04h Bit 7 Bit 6 Bit 5 0 R:0 Register Per: socket Register Compatibility Type: 365 Bit 4 0 R:0 Bit 3 Card Detect Change R:0 Bit 2 Ready Change R:0 Bit 1 Battery Warning Change R:0 Bit 0 Battery Dead Or Status Change R:0 0 R:0 0 R:0 This register indicates the source of a management interrupt generated by the CL-PD67XX. NOTE: The corresponding bit in the Management Interrupt Configuration register must be set to `1' to enable each specific status change detection. Bit 0 -- Battery Dead Or Status Change 0 1 A transition (from high to low for memory card support or either high to low or low to high for I/O card support) on the BVD1/-STSCHG pin has not occurred since this register was last read. A transition on the BVD1/-STSCHG pin has occurred. When the socket is configured for memory card support, this bit is set to `1' when a BVD1 battery dead high-to-low transition has been detected. When the socket is configured for I/O card support, this bit is set to `1' when the BVD1/-STSCHG pin (see page 19) changes from either high to low or low to high. This bit is reset to `0' whenever this register is read. In I/O Card Interface mode, function of this bit is not affected by bit 7 of the Interrupt and General Control register. Bit 1 -- Battery Warning Change 0 1 A transition (from high to low) on the BVD2 pin has not occurred since this register was last read. A transition on the BVD2 pin has occurred. When a socket is configured for memory card support, this bit is set to `1' when a high-to-low transition on BVD2 occurs indicating a battery warning was detected. This bit should be ignored when the socket is configured for I/O card support. This bit is reset to `0' whenever this register is read. Bit 2 -- Ready Change 0 1 A transition on the RDY/-IREQ pin has not occurred since this register was last read. A transition on the RDY/-IREQ pin has occurred. When this bit is `1', a change has occurred in the card RDY/-IREQ pin (see page 17). This bit will always read 0 when the card is configured as an I/O card. This bit is reset to `0' whenever this register is read. Bit 3 -- Card Detect Change 0 1 A transition on the -CD1 or -CD2 pins has not occurred since this register was last read. A transition on the -CD1 or -CD2 pins has occurred. When this bit is `1', a change has occurred on the -CD1 or -CD2 pins (see page 18). This bit is reset to `0' whenever this register is read. 44 CHIP CONTROL REGISTERS PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 6.6 Management Interrupt Configuration Register Name: Management Interrupt Configuration Index: 05h Bit 7 Bit 6 Bit 5 Bit 4 Management IRQ Select RW:0000 Register Per: socket Register Compatibility Type: 365 Bit 3 Card Detect Enable RW:0 Bit 2 Ready Enable RW:0 Bit 1 Battery Warning Enable RW:0 Bit 0 Battery Dead Or Status Change Enable RW:0 This register controls which status changes may cause management interrupts and at which pin the management interrupts will appear. Bit 0 -- Battery Dead Or Status Change Enable 0 1 Battery Dead Or Status Change management interrupt disabled. If Battery Dead Or Status Change is `1', a management interrupt will occur. When this bit is `1', a management interrupt will occur when the Card Status Change register's Battery Dead Or Status Change bit (see page 44) is `1'. This allows management interrupts to be generated on changes in level of the BVD1/-STSCHG pin. Bit 1 -- Battery Warning Enable 0 1 Battery Warning Change management interrupt disabled. If Battery Warning Change is `1', a management interrupt will occur. When this bit is `1', a management interrupt will occur when the Card Status Change register's Battery Warning Change bit (see page 44) is `1'. This bit is ignored when the card socket is in I/O mode. Bit 2 -- Ready Enable 0 1 Ready Change management interrupt disabled. If Ready Change is `1', a management interrupt will occur. When this bit is `1', a management interrupt will occur when the Card Status Change register's Ready Change bit (see page 44) is `1'. Bit 3 -- Card Detect Enable 0 1 Card Detect Change management interrupt disabled. If Card Detect Change is `1', a management interrupt will occur. When this bit is `1', a management interrupt will occur when the Card Status Change register's Card Detect Change bit (see page 44) is `1'. May 1997 PRELIMINARY DATA SHEET v3.1 CHIP CONTROL REGISTERS 45 CL-PD6710/'22 ISA-to-PC-Card Host Adapters Bits 7:4 -- Management IRQ Select 0000 0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011 1100 1101 1110 1111 IRQ disabled Reserved Reserved IRQ 3 IRQ 4 IRQ 5 Reserved IRQ 7 Reserved IRQ 9 (On the CL-PD6722, this output may alternately be used as an ISA bus DACK* signal) IRQ 10 (On the CL-PD6722, this output may alternately be used as an ISA bus DRQ signal) IRQ 11 IRQ 12 (This output may alternately be used for LED) Reserved IRQ 14 IRQ 15 (This output may alternately be used for ring indicate) These bits determine which interrupt pin will be used for card status change management interrupts. 46 CHIP CONTROL REGISTERS PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 6.7 Mapping Enable Register Name: Mapping Enable Index: 06h Bit 7 Bit 6 Bit 5 I/O Map 1 Enable RW:0 I/O Map 0 Enable RW:0 MEMCS16 Full Decode RW:0 Register Per: socket Register Compatibility Type: 365 Bit 4 Memory Map 4 Enable RW:0 Bit 3 Memory Map 3 Enable RW:0 Bit 2 Memory Map 2 Enable RW:0 Bit 1 Memory Map 1 Enable RW:0 Bit 0 Memory Map 0 Enable RW:0 Bit 0 -- Memory Map 0 Enable 0 1 Memory Mapping registers for Memory Space 0 disabled. Memory Mapping registers for Memory Space 0 enabled. When this bit is `1', the Memory Mapping registers for Memory Space 0 will be enabled and the controller will respond to memory accesses in the memory space defined by those registers. Bit 1 -- Memory Map 1 Enable 0 1 Memory Mapping registers for Memory Space 1 disabled. Memory Mapping registers for Memory Space 1 enabled. When this bit is `1', the Memory Mapping registers for Memory Space 1 will be enabled and the controller will respond to memory accesses in the memory space defined by those registers. Bit 2 -- Memory Map 2 Enable 0 1 Memory Mapping registers for Memory Space 2 disabled. Memory Mapping registers for Memory Space 2 enabled. When this bit is `1', the Memory Mapping registers for Memory Space 2 will be enabled and the controller will respond to memory accesses in the memory space defined by those registers. Bit 3 -- Memory Map 3 Enable 0 1 Memory Mapping registers for Memory Space 3 disabled. Memory Mapping registers for Memory Space 3 enabled. When this bit is `1', the Memory Mapping registers for Memory Space 3 will be enabled and the controller will respond to memory accesses in the memory space defined by those registers. Bit 4 -- Memory Map 4 Enable 0 1 Memory Mapping registers for Memory Space 4 disabled. Memory Mapping registers for Memory Space 4 enabled. When this bit is `1', the Memory Mapping registers for Memory Space 4 will be enabled and the controller will respond to memory accesses in the memory space defined by those registers. Bit 5 -- MEMCS16 Full Decode This bit is not used. All addresses are used to determine the level of MEMCS16*. May 1997 PRELIMINARY DATA SHEET v3.1 CHIP CONTROL REGISTERS 47 CL-PD6710/'22 ISA-to-PC-Card Host Adapters Bit 6 -- I/O Map 0 Enable 0 1 I/O Mapping registers for I/O Space 0 disabled. I/O Mapping registers for I/O Space 0 enabled. When this bit is `1', the I/O Mapping registers for I/O Space 0 will be enabled and the controller will respond to I/O accesses in the I/O space defined by those registers. Bit 7 -- I/O Map 1 Enable 0 1 I/O Mapping registers for I/O Space 1 disabled. I/O Mapping registers for I/O Space 1 enabled. When this bit is `1', the I/O Mapping registers for I/O Space 1 will be enabled and the controller will respond to I/O accesses in the I/O space defined by those registers. 48 CHIP CONTROL REGISTERS PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 7. I/O WINDOW MAPPING REGISTERS The I/O windows must never include 3E0h and 3E1h. 7.1 I/O Window Control Register Name: I/O Window Control Index: 07h Bit 7 Bit 6 Bit 5 Timing Register Select 1 RW:0 Register Per: socket Register Compatibility Type: 365 Bit 4 I/O Window 1 Size RW:0 Bit 3 Timing Register Select 0 RW:0 Bit 2 Compatibility Bit RW:0 Bit 1 Auto-Size I/O Window 0 RW:0 Bit 0 I/O Window 0 Size RW:0 Compatibility Bit RW:0 Auto-Size I/O Window 1 RW:0 Bit 0 -- I/O Window 0 Size 0 1 8-bit data path to I/O Window 0. 16-bit data path to I/O Window 0. When bit 1 below is `0', this bit determines the size of the data path to I/O Window 0. When bit 1 is `1', this bit is ignored. Bit 1 -- Auto-Size I/O Window 0 0 1 I/O Window 0 Size (see bit 0 above) determines the data path to I/O Window 0. The data path to I/O Window 0 will be determined based on -IOIS16 returned by the card. This bit determines the data path to I/O Window 0. Note that when this bit is `1', the -IOIS16 signal (see page 17) determines the width of the data path to the card. Bit 3 -- Timing Register Select 0 0 1 Accesses made with timing specified in Timing Set 0. Accesses made with timing specified in Timing Set 1. This bit determines the access timing specification for I/O Window 0 (see page 72). Bit 4 -- I/O Window 1 Size 0 1 8-bit data path to I/O Window 1. 16-bit data path to I/O Window 1. When bit 5 below is `0', this bit determines the size of the data path to I/O Window 1. When bit 5 is `1', this bit is ignored. Bit 5 -- Auto-Size I/O Window 1 0 1 I/O Window 1 Size (see bit 4) determines the data path to I/O Window 1. The data path to I/O Window 1 will be determined based on -IOIS16 returned by the card. This bit determines the width of the data path to I/O Window 1. Note that when this bit is `1', the -IOIS16 signal (see page 17) determines the window size. This bit must be set for proper ATA mode operation (see Chapter 11). May 1997 PRELIMINARY DATA SHEET v3.1 I/O WINDOW MAPPING REGISTERS 49 CL-PD6710/'22 ISA-to-PC-Card Host Adapters Bit 7 -- Timing Register Select 1 0 1 Accesses made with timing specified in Timing Set 0. Accesses made with timing specified in Timing Set 1. This bit determines the access timing specification for I/O Window 1 (see page 72). 7.2 System I/O Map 0-1 Start Address Low Register Name: System I/O Map 0-1 Start Address Low Index: 08h, 0Ch Bit 7 Bit 6 Bit 5 Bit 4 Register Per: socket Register Compatibility Type: 365 Bit 3 Bit 2 Bit 1 Bit 0 Start Address 7:0 RW:00000000 There are two separate System I/O Map Start Address Low registers, each with identical fields. These registers are located at the following indexes: Index 8h Ch System I/O Map Start Address Low System I/O Map 0 Start Address Low System I/O Map 1 Start Address Low Bits 7:0 -- Start Address 7:0 This register contains the least-significant byte of the address that specifies the beginning of the I/O space within the corresponding I/O map. I/O accesses that are equal or above this address and equal or below the corresponding System I/O Map End Address will be mapped into the I/O space of the corresponding PC Card. The most-significant byte is located in the System I/O Map 0-1 Start Address High register (see page 50). 7.3 System I/O Map 0-1 Start Address High Register Name: System I/O Map 0-1 Start Address High Index: 09h, 0Dh Bit 7 Bit 6 Bit 5 Bit 4 Register Per: socket Register Compatibility Type: 365 Bit 3 Bit 2 Bit 1 Bit 0 Start Address 15:8 RW:00000000 There are two separate System I/O Map Start Address High registers, each with identical fields. These registers are located at the following indexes: Index 9h Dh System I/O Map Start Address High System I/O Map 0 Start Address High System I/O Map 1 Start Address High Bits 15:8 -- Start Address 15:8 This register contains the most-significant byte of the Start Address. See the description of the Start Address field associated with bits 7:0 of the System I/O Map 0-1 Start Address Low register. 50 I/O WINDOW MAPPING REGISTERS PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 7.4 System I/O Map 0-1 End Address Low Register Name: System I/O Map 0-1 End Address Low Index: 0Ah, 0Eh Bit 7 Bit 6 Bit 5 Bit 4 Register Per: socket Register Compatibility Type: 365 Bit 3 Bit 2 Bit 1 Bit 0 End Address 7:0 RW:00000000 There are two separate System I/O Map End Address Low registers, each with identical fields. These registers are located at the following indexes: Index Ah Eh System I/O Map End Address Low System I/O Map 0 End Address Low System I/O Map 1 End Address Low Bits 7:0 -- End Address 7:0 This register contains the least-significant byte of the address that specifies the termination of the I/O space within the corresponding I/O map. I/O accesses that are equal or below this address and equal or above the corresponding System I/O Map Start Address will be mapped into the I/O space of the corresponding PC Card. The most-significant byte is located in the System I/O Map 0-1 End Address High register (see page 51). 7.5 System I/O Map 0-1 End Address High Register Name: System I/O Map 0-1 End Address High Index: 0Bh, 0Fh Bit 7 Bit 6 Bit 5 Bit 4 Register Per: socket Register Compatibility Type: 365 Bit 3 Bit 2 Bit 1 Bit 0 End Address 15:8 RW:00000000 There are two separate System I/O Map End Address High registers, each with identical fields. These registers are located at the following indexes: Index Bh Fh System I/O Map End Address High System I/O Map 0 End Address High System I/O Map 1 End Address High Bits 15:8 -- End Address 15:8 This register contains the most-significant byte of the End Address. See the description of the End Address field associated with bits 7:0 of the System I/O Map 0-1 End Address Low register (see page 51). May 1997 PRELIMINARY DATA SHEET v3.1 I/O WINDOW MAPPING REGISTERS 51 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 7.6 Card I/O Map 0-1 Offset Address Low Register Name: Card I/O Map 0-1 Offset Address Low Index: 36h, 38h Bit 7 Bit 6 Bit 5 Bit 4 Offset Address 7:1 RW:0000000 a Register Per: socket Register Compatibility Type: ext. Bit 3 Bit 2 Bit 1 Bit 0 0a RW:0 This bit must be programmed to `0'. There are two separate Card I/O Map Offset Address Low registers, each with identical fields. These registers are located at the following indexes: Index 36h 38h Card I/O Map Offset Address Low Card I/O Map 0 Offset Address Low Card I/O Map 1 Offset Address Low Bits 7:1 -- Offset Address 7:1 This register contains the least-significant byte of the quantity that will be added to the host I/O address; this will determine the PC Card I/O map location where the I/O access will occur. The most-significant byte is located in the Card I/O Map 0-1 Offset Address High register (see page 52). 7.7 Card I/O Map 0-1 Offset Address High Register Name: Card I/O Map 0-1 Offset Address High Index: 37h, 39h Bit 7 Bit 6 Bit 5 Bit 4 Register Per: socket Register Compatibility Type: ext. Bit 3 Bit 2 Bit 1 Bit 0 Offset Address 15:8 RW:00000000 There are two separate Card I/O Map Offset Address High registers, each with identical fields. These registers are located at the following indexes: Index 37h 39h Card I/O Map Offset Address High Card I/O Map 0 Offset Address High Card I/O Map 1 Offset Address High Bits 15:8 -- Offset Address 15:8 This register contains the most-significant byte of the Offset Address. See the description of the End Address field associated with bits 7:1 of the Card I/O Map 0-1 Offset Address Low register (see page 52). 52 I/O WINDOW MAPPING REGISTERS PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 8. MEMORY WINDOW MAPPING REGISTERS The following information about the memory map windows is important: q The memory window mapping registers determine where in the ISA memory space and PC Card memory space accesses will occur. There are five memory windows that can be used independently. The memory windows are enabled and disabled using the Mapping Enable register (see page 47). To specify where in the ISA space a memory window is mapped, start and end addresses are specified. A memory window is selected whenever the appropriate Memory Map Enable bit (see page 47) is set, and when the ISA address is greater than or equal to the appropriate System Memory Map Start Address register (see page 53) and the ISA address is less than or equal to the appropriate System Memory Map End Address register (see page 54). Start and end addresses are specified with ISA Address bits 23:12. This sets the minimum size of a memory window to 4K bytes. Memory windows are specified in the ISA address from 64 Kbytes to 16 Mbytes (0010000h-FFFFFFh). Note that no memory window can be mapped in the first 64 Kbytes of the ISA address space. To ensure proper operation, none of the windows can overlap in the ISA address space. q q q q 8.1 System Memory Map 0-4 Start Address Low Register Name: System Memory Map 0-4 Start Address Low Index: 10h, 18h, 20h, 28h, 30h Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Start Address 19:12 RW:00000000 Register Per: socket Register Compatibility Type: 365 Bit 2 Bit 1 Bit 0 There are five separate System Memory Map Start Address Low registers, each with identical fields. These registers are located at the following indexes: Index 10h 18h 20h 28h 30h System Memory Map Start Address Low System Memory Map 0 Start Address Low System Memory Map 1 Start Address Low System Memory Map 2 Start Address Low System Memory Map 3 Start Address Low System Memory Map 4 Start Address Low Bits 7:0 -- Start Address 19:12 This register contains the least-significant byte of the address that specifies where in the memory space the corresponding memory map will begin. Memory accesses that are equal or above this address and equal or below the corresponding System Memory Map End Address will be mapped into the memory space of the corresponding PC Card. The most-significant four bits are located in the System Memory Map 0-4 Start Address High register (see page 54). May 1997 PRELIMINARY DATA SHEET v3.1 MEMORY WINDOW MAPPING REGISTERS 53 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 8.2 System Memory Map 0-4 Start Address High Register Name: System Memory Map 0-4 Start Address High Index: 11h, 19h, 21h, 29h, 31h Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Window Data Size RW:0 Register Per: socket Register Compatibility Type: 365 Bit 2 Bit 1 Bit 0 Compatibility Bit RW:0 Scratchpad Bits RW:00 Start Address 23:20 RW:0000 There are five separate System Memory Map Start Address High registers, each with identical fields. These registers are located at the following indexes: Index 11h 19h 21h 29h 31h System Memory Map Start Address High System Memory Map 0 Start Address High System Memory Map 1 Start Address High System Memory Map 2 Start Address High System Memory Map 3 Start Address High System Memory Map 4 Start Address High Bits 3:0 -- Start Address 23:20 This field contains the most-significant four bits of the Start Address. See the description of the Start Address field associated with bits 7:0 of the System Memory Map 0-4 Start Address Low register (see page 53). Bit 7 -- Window Data Size 0 1 8-bit data path to the card. 16-bit data path to the card. This bit determines the data path size to the card. 8.3 System Memory Map 0-4 End Address Low Register Name: System Memory Map 0-4 End Address Low Index: 12h, 1Ah, 22h, 2Ah, 32h Bit 7 Bit 6 Bit 5 Bit 4 Register Per: socket Register Compatibility Type: 365 Bit 3 Bit 2 Bit 1 Bit 0 End Address 19:12 RW:00000000 There are five separate System Memory Map End Address Low registers, each with identical fields. These registers are located at the following indexes: Index 12h 1Ah 22h 2Ah 32h System Memory Map End Address Low System Memory Map 0 End Address Low System Memory Map 1 End Address Low System Memory Map 2 End Address Low System Memory Map 3 End Address Low System Memory Map 4 End Address Low 54 MEMORY WINDOW MAPPING REGISTERS PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters Bits 7:0 -- End Address 19:12 This register contains the least-significant byte of the address that specifies where in the memory space the corresponding memory map will end. Memory accesses that are equal or below this address and equal or above the corresponding System Memory Map Start Address will be mapped into the memory space of the corresponding PC Card. The most-significant four bits are located in the System Memory Map 0-4 End Address High register (see Section 8.4). 8.4 System Memory Map 0-4 End Address High Register Name: System Memory Map 0-4 End Address High Index: 13h, 1Bh, 23h, 2Bh, 33h Bit 7 Bit 6 Bit 5 Bit 4 Card Timer Select RW:00 Register Per: socket Register Compatibility Type: 365 Bit 3 Bit 2 Bit 1 Bit 0 Scratchpad Bits RW:00 End Address 23:20 RW:0000 There are five separate System Memory Map End Address High registers, each with identical fields. These registers are located at the following indexes: Index 13h 1Bh 23h 2Bh 33h System Memory Map End Address High System Memory Map 0 End Address High System Memory Map 1 End Address High System Memory Map 2 End Address High System Memory Map 3 End Address High System Memory Map 4 End Address High Bits 3:0 -- End Address 23:20 This field contains the most-significant four bits of the End Address. See the description of the End Address field associated with bits 7:0 of the System Memory Map 0-4 End Address Low register (see page 54). Bits 7:6 -- Card Timer Select 00 01 10 11 Selects Timer Set 0. Selects Timer Set 1. Selects Timer Set 1. Selects Timer Set 1. This field selects the Timeset registers used to control socket timing for card accesses in this window address range. Timeset 0 and 1 reset to values compatible with PC Card standards. The mapping of bits 7:6 to Timeset 0 and 1, as shown in the preceding table, is done for software compatibility with older ISA bus-based PCMCIA host adapters that use ISA bus wait states instead of Timeset registers (see page 72). May 1997 PRELIMINARY DATA SHEET v3.1 MEMORY WINDOW MAPPING REGISTERS 55 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 8.5 Card Memory Map 0-4 Offset Address Low Register Name: Card Memory Map 0-4 Offset Address Low Index: 14h, 1Ch, 24h, 2Ch, 34h Bit 7 Bit 6 Bit 5 Bit 4 Register Per: socket Register Compatibility Type: 365 Bit 3 Bit 2 Bit 1 Bit 0 Offset Address 19:12 RW:00000000 There are five separate Card Memory Map Offset Address Low registers, each with identical fields. These registers are located at the following indexes: Index 14h 1Ch 24h 2Ch 34h Card Memory Map Offset Address Low Card Memory Map 0 Offset Address Low Card Memory Map 1 Offset Address Low Card Memory Map 2 Offset Address Low Card Memory Map 3 Offset Address Low Card Memory Map 4 Offset Address Low Bits 7:0 -- Offset Address 19:12 This register contains the least-significant byte of the quantity that will be added to the host memory address, which will determine where the memory access will occur in the PC Card memory map. The most-significant six bits are located in the Card Memory Map 0-4 Offset Address High register (see page 56). 8.6 Card Memory Map 0-4 Offset Address High Register Name: Card Memory Map 0-4 Offset Address High Index: 15h, 1Dh, 25h, 2Dh, 35h Bit 7 Bit 6 Bit 5 Bit 4 Write Protect RW:0 Register Per: socket Register Compatibility Type: 365 Bit 3 Bit 2 Bit 1 Bit 0 REG Setting RW:0 Offset Address 25:20 RW:000000 There are five separate Card Memory Map Offset Address High registers, each with identical fields. These registers are located at the following indexes: Index 15h 1Dh 25h 2Dh 35h Card Memory Map Offset Address High Card Memory Map 0 Offset Address High Card Memory Map 1 Offset Address High Card Memory Map 2 Offset Address High Card Memory Map 3 Offset Address High Card Memory Map 4 Offset Address High 56 MEMORY WINDOW MAPPING REGISTERS PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters Bits 5:0 -- Offset Address 25:20 This field contains the most-significant six bits of the Offset Address. See the description of the Offset Address field associated with bits 7:0 of the Card Memory Map 0-4 Offset Address Low register (see page 56). Bit 6 -- REG Setting 0 1 -REG (see page 16) is not active for accesses made through this window. -REG is active for accesses made through this window. This bit determines whether -REG (see page 16) will be active for accesses made through this window. Card Information Structure (CIS) memory is accessed by setting this bit to `1'. Bit 7 -- Write Protect 0 1 Writes to the card through this window are allowed. Writes to the card through this window are inhibited. This bit determines whether writes to the card through this window are allowed. This bit only applies to Memory Card Interface mode. NOTE: This bit must be set to `0' and a memory card's `WP' switch must be turned off to allow writes to a card using a memory interface, such as an SRAM card. May 1997 PRELIMINARY DATA SHEET v3.1 MEMORY WINDOW MAPPING REGISTERS 57 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 9. EXTENSION REGISTERS 9.1 Misc Control 1 Register Name: Misc Control 1 Index: 16h Bit 7 Bit 6 Register Per: socket Register Compatibility Type: ext. Bit 5 Bit 4 Speaker Enable RW:0 Bit 3 Pulse System IRQ RW:0 Bit 2 Pulse Management Interrupt RW:0 Bit 1 Bit 0 5 V Detect (CL-PD6710) Inpack Enable Scratchpad Bits VCC 3.3V Reserved a (CL-PD6722) R:X W:0 RW:0 a RW:00 RW:0 On some versions of the CL-PD6722, this bit can be used to read levels of the A_GPSTB and B_GPSTB pins. Contact Cirrus Logic for more information. Bit 0 -- 5 V Detect (CL-PD6710 only) 0 1 3.3 V card detected. Old or 5 V card detected. This bit is connected to pins VS1 and VS2. Cards that will only operate at 3.3 V will drive this bit to `0'. Bit 1 -- VCC 3.3V 0 1 -VCC_5 activated when card power is to be applied. -VCC_3 activated when card power is to be applied. This bit determines which output pin is to be used to enable VCC power to the socket when card power is to be applied; it is used in conjunction with bits 5:4 of the Power Control register (see page 40). Bit 2 -- Pulse Management Interrupt 0 1 Card status change management interrupts are passed to the appropriate IRQ[XX] or -INTR pin as level-sensitive. When a card status change management interrupt occurs, the appropriate IRQ[XX] or -INTR pin is driven with the pulse train shown in Figure 9-1 and allows for interrupt sharing. This bit selects Level or Pulse mode operation of the IRQ[XX] or -INTR pin being used for card status change management interrupts (see page 14). Note that a clock must be present on the incoming CLK for pulsed interrupts to work. 58 EXTENSION REGISTERS PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters Driven high -INTR or IRQ[XX] High-Z Driven low High-Z Figure 9-1. Pulse Mode Interrupts Bit 3 -- Pulse System IRQ 0 1 RDY/-IREQ generated interrupts are passed to the IRQ[XX] pin as level-sensitive. When a RDY/-IREQ interrupt occurs, the IRQ[XX] pin is driven with the pulse train shown in Figure 9-1 and allows for interrupt sharing. This bit selects Level or Pulse mode operation of the IRQ[XX] pins for interrupts from a PC Card RDY/-IREQ pin (see page 17). Bit 4 -- Speaker Enable 0 1 SPKR_OUT* is high-impedance. SPKR_OUT* is driven from the XOR of -SPKR from each enabled socket. This bit determines whether the card -SPKR pin will drive SPKR_OUT* (see page 15). Bit 7 -- Inpack Enable 0 1 -INPACK pin (see page 17) ignored. -INPACK pin used to control data bus drivers during I/O read from the socket. This bit is used to determine when to drive data onto the ISA bus. May 1997 PRELIMINARY DATA SHEET v3.1 EXTENSION REGISTERS 59 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 9.2 FIFO Control Register Name: FIFO Control Index: 17h Bit 7 Bit 6 Empty Write FIFO RW a Register Per: socket Register Compatibility Type: ext. Bit 5 Bit 4 Bit 3 Scratchpad Bits a RW:0000000 Bit 2 Bit 1 Bit 0 Because a write will flush the FIFO, these scratchpad bits should be used only when card activity is guaranteed not to occur. Bit 7 -- Empty Write FIFO Value 0 1 I/O Read FIFO not empty FIFO empty I/O Write No operation occurs; default on reset Flush the FIFO This bit controls FIFO operation and reports FIFO status. When this bit is written to `1', all data in the FIFO is lost. During read operations when this bit is `1', the FIFO is empty. During read operations when this bit is `0', data is still in the FIFO. This bit is used to ensure the FIFO is empty before changing timing registers. FIFO contents will be lost whenever any of the following occur: q q q PWRGOOD pin (see page 13) is `0'. The card is removed. VCC Power bit (see page 41) is programmed to `0'. 60 EXTENSION REGISTERS PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 9.3 Misc Control 2 Register Name: Misc Control 2 Index: 1Eh Bit 7 Bit 6 IRQ15 Is RI Out RW:0 Register Per: chip Register Compatibility Type: ext. Bit 5 Bit 4 Drive LED Enable RW:0 Bit 3 5V Core RW:0 Bit 2 Suspend RW:0 Bit 1 Low-Power Dynamic Mode RW:1 Bit 0 Bypass Frequency Synthesizer RW:0 DMA System (CL-PD6722) RW:0 Three-State Bit 7 RW:0 Bit 0 -- Bypass Frequency Synthesizer 0 1 Normal operation, internal clock = CLK input frequency x 7/4. Internal clock = CLK input frequency (see page 15). This bit determines internal time base. Bit 1 -- Low-Power Dynamic Mode 0 1 Clock runs always. Normal operation, stop clock when possible. This bit determines whether Low-Power Dynamic mode is enabled. For maximum operational power savings, keep this bit set to `1'. Bit 2 -- Suspend 0 1 Normal operation. Stop Frequency Synthesizer, enable all Low-Power modes and disable socket access. This bit enables Suspend mode. After entering Suspend, AEN should be pulled high for lowest power consumption. When this bit is high and AEN is high, all ISA bus interface inputs are turned off. In 82386SL systems when the processor is in Suspend mode, the ISA bus interface signals float; this feature will prevent high current flow in the CL-PD67XX inputs. Bit 3 -- 5V Core 0 1 Normal operation: use when CORE_VDD pin is connected to 3.3 volts. Selects input thresholds for use when 5.0 volts is connected to the CL-PD67XX CORE_VDD pins. This bit selects input threshold circuits for use when 3.3 or 5.0 volts is connected to the CL-PD67XX CORE_VDD pins. This bit must be set to `0' when the CORE_VDD pins are connected to 3.3 volts to preserve TTL-compatible input thresholds to the card socket. Bit 4 -- Drive LED Enable 0 1 IRQ12 operates normally. IRQ12 becomes an open-drain output suitable for driving an LED (driven whenever the card -SPKR output is turned on, and the corresponding Speaker Is LED input bit (see page 64) is set). NOTE:This bit should be set to `0' if in Memory Card Interface mode. This bit determines whether -SPKR is used to drive an LED on the IRQ12 (see page 14) for disk drives. May 1997 PRELIMINARY DATA SHEET v3.1 EXTENSION REGISTERS 61 CL-PD6710/'22 ISA-to-PC-Card Host Adapters Bit 5 -- Three-State Bit 7 0 1 Normal operation. For socket I/O at address 03F7h and 0377h, do not drive bit 7. This bit enables floppy change bit compatibility. Bit 6 -- DMA System (CL-PD6722 only) 0 1 Configured for non-DMA mode on the CL-PD6722. Configured for DMA mode on the CL-PD6722. On the CL-PD6710, this bit is reserved. On the CL-PD6722, this bit is used to configure system interface signals for normal or DMA operation. At reset, the signals IRQ9, IRQ10, and -VPP_VALID are in non-DMA mode, and this bit is set to `0'. When this bit is set to `1', the IRQ9, IRQ10, and -VPP_VALID pins are reconfigured for system bus DMA interfacing. Refer to Chapter 14 for a functional description of these pins during DMA operation. Bit 7 -- IRQ15 Is RI Out 0 1 Normal IRQ15 operation. IRQ15 is connected to Ring Indicate pin on the host processor. This bit determines the function of the IRQ15 pin. When configured for ring indicate, IRQ15 is used to resume a processor with NMI or SMI such as an 82486SL when a high-to-low change is detected on the -STSCHG pin. 62 EXTENSION REGISTERS PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 9.4 Chip Information Register Name: Chip Information Index: 1Fh Bit 7 Bit 6 Bit 5 Cirrus Logic Host-Adapter Identification R:11 a b Register Per: chip Register Compatibility Type: ext. Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Reserved R:n c Dual/Single Socket* R:n a CL-PD67XX Revision Level R:nnnn b The value for CL-PD6710 is `0', and the value for CL-PD6722 is `1'. This read-only value depends on the revision level of the CL-PD67XX chip. c The value for CL-PD6722 is `1'. The value for the CL-PD6710 is `0'. Bits 4:1 -- CL-PD67XX Revision Level This field identifies the revision of the controller. The initial value is `111'. Contact Cirrus Logic for more information on revision levels for the CL-PD6710 and CL-PD6722. Bit 5 -- Dual/Single Socket* 0 1 Chip identified as a single-socket controller. Chip identified as a dual-socket controller. This bit specifies the number of sockets supported by the CL-PD67XX. Bits 7:6 -- Cirrus Logic Host-Adapter Identification 00 11 Second read after I/O write to this register. First read after I/O write to this register. This field identifies a Cirrus Logic host-adapter device. After chip reset or doing an I/O write to this register, the first read of this register will return `11'. On the next read, this field will be `00'. This pattern of toggling data on subsequent reads can be used by software to determine presence of a Cirrus Logic host adapter in a system or to determine occurrence of a device reset. May 1997 PRELIMINARY DATA SHEET v3.1 EXTENSION REGISTERS 63 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 9.5 ATA Control Register Name: ATA Control Index: 26h Bit 7 Bit 6 A25/CSEL RW:0 Register Per: socket Register Compatibility Type: ext. Bit 5 A23/VU RW:0 Bit 4 A22 RW:0 Bit 3 A21 RW:0 Bit 2 Scratchpad Bit RW:0 Bit 1 Speaker Is LED Input RW:0 Bit 0 ATA Mode RW:0 A24/M/S* RW:0 Bit 0 -- ATA Mode 0 1 Normal operation. Configures the socket interface to handle ATA-type disk drives. This bit reconfigures the particular socket as an ATA drive interface. Refer to Table 11-1 on page 75 for PC Card socket pin definitions in ATA mode. Bit 1 -- Speaker Is LED Input 0 1 Normal operation. The PC Card -SPKR pin will be used to drive IRQ12 if Drive LED Enable (see page 61) is set. This bit changes the function of the BVD2/-SPKR/-LED pin (see page 18) from digital speaker input to disk status LED input. When in I/O Card Interface mode or ATA mode, setting this bit to `1' reconfigures the BVD2/-SPKR/-LED input pin to serve as a -LED input from the socket. NOTE: This bit should be set to `0' if in Memory Card Interface mode. Bit 3 -- A21 In ATA mode, the value in this bit is applied to the ATA A21 pin and is vendor-specific. Certain ATA drive vendor-specific performance enhancements beyond the PC Card Standard may be controlled through use of this bit. This bit has no hardware control function when not in ATA mode. Bit 4 -- A22 In ATA mode, the value in this bit is applied to the ATA A22 pin and is vendor-specific. Certain ATA drive vendor-specific performance enhancements beyond the PC Card Standard may be controlled through use of this bit. This bit has no hardware control function when not in ATA mode. Bit 5 -- A23/VU In ATA mode, the value in this bit is applied to the ATA A23 pin and is vendor-specific. Certain ATA drive vendor-specific performance enhancements beyond the PC Card Standard may be controlled through use of this bit. This bit has no hardware control function when not in ATA mode. Bit 6 -- A24/M/S* In ATA mode, the value in this bit is applied to the ATA A24 pin and is vendor-specific. Certain ATA drive vendor-specific performance enhancements beyond the PC Card Standard may be controlled through use of this bit. This bit has no hardware control function when not in ATA mode. Bit 7 -- A25/CSEL In ATA mode, the value in this bit is applied to the ATA A25 pin and is vendor-specific. Certain ATA drive vendor-specific performance enhancements beyond the PC Card Standard may be controlled through use of this bit. This bit has no hardware control function when not in ATA mode. 64 May 1997 EXTENSION REGISTERS PRELIMINARY DATA SHEET v3.1 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 9.6 Extended Index Register Name: Extended Index Index: 2Eh Bit 7 Bit 6 Bit 5 Register Per: socket Register Compatibility Type: ext. Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Extended Index RW:00000000 In the CL-PD6722 only, this register controls which of the following registers at index 2Fh can be accessed: Register Name at Index 2Fh Scratchpad Data Mask 0 Data Mask 1 Extension Control 1 (formerly named DMA Control) Maximum DMA Acknowledge Delay Extended Register Index 00h 01h 02h 03h 04h 05h-09h 0Ah 0Bh Reserved External Data Extension Control 2 9.7 Extended Data Register Name: Extended Data Index: 2Fh Bit 7 Bit 6 Register Per: socket Register Compatibility Type: ext. Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Extended Data The data in this register allows the registers indicated by the Extended Index register to be read and written. The value of this register is the value of the register selected by the Extended Index register. May 1997 PRELIMINARY DATA SHEET v3.1 EXTENSION REGISTERS 65 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 9.7.1 Data Mask 0-1 Extended Index: 01h, 02h Bit 5 Bit 4 Bit 3 Bit 2 Register Per: socket Register Compatibility Type: ext. Bit 1 Bit 0 Register Name: Data Mask 0-1 Index: 2Fh Bit 7 Bit 6 Data Mask Select 0-1 RW:00000000 Data Mask 0 is the mask register for I/O Map 0. For each bit set in the Data Mask Select 0 field, the corresponding data bit will not be driven when the host addresses PC Card I/O addresses in the I/O Map 0 range. If this register is set to 00h, then all data bits will be driven from the PC Card to the ISA bus (this is the reset condition). If any bits are set to `1', accesses to the I/O Map 0 range of I/O on the PC Card will be forced to 8-bit operation on the ISA side. If, for example, I/O Map 0 registers are set for the range 3F7h to 3F7h, I/O Map 1 registers are set for the range 3F0h to 3F6h, Data Mask Select 0 is set to 7Fh, and a floppy drive is the PC Card device, then the conflict between the floppy address 3F7h and the hard disk register at 3F7h would not cause a conflict on the ISA bus -- the floppy change bit would be correctly presented to the host. The Data Mask 1 register operates the same as the Data Mask 0 register but acts on I/O addresses in the range indicated by the I/O Map 1 registers. 9.7.2 Extension Control 1 (CL-PD6722 only, formerly DMA Control) Extended Index: 03h Bit 4 Reserved RW:00 Register Name: Extension Control 1 Index: 2Fh Bit 7 Bit 6 Bit 5 DMA Enable (CL-PD6722) RW:00 Register Per: socket Register Compatibility Type: ext. Bit 2 LED Activity Enable RW:0 Bit 3 Bit 1 Auto Power Clear Disable RW:0 Bit 0 VCC Power Lock RW:0 Pull-up Control RW:0 Bit 0 -- VCC Power Lock 0 1 The VCC Power bit (bit 4 of Power Control register) is not locked. The VCC Power bit (bit 4 of Power Control register) cannot be changed by software. This bit can be used to prevent card drivers from overriding the Socket Services' task of controlling power to the card, thus preventing situations where cards are powered incorrectly. Bit 1 -- Auto Power Clear Disable 0 1 The VCC Power bit (bit 4 of Power Control register) is reset to `0' when the card is removed. The VCC Power bit (bit 4 of Power Control register) is not affected by card removal. Bit 2 -- LED Activity Enable 0 1 LED activity disabled. LED activity enabled. This bit allows the LED_OUT* pin to reflect any activity in the card. Whenever PC Card cycles are in process to or from a card in either socket, LED_OUT* will be active (low). 66 EXTENSION REGISTERS PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters Bit 5 -- Pull-up Control 0 1 Pull-ups on CD2, CD1, A_GPSTB, and B_GPSTB (CL-PD6722) are in use. Pull-ups on CD2, CD1, A_GPSTB, and B_GPSTB (CL-PD6722) are turned off. This bit turns off the pull-ups on CD2, CD1, and A_GPSTB and B_GPSTB (CL-PD6722). Turning off these pull-ups can be used in addition to Suspend mode to even further reduce power when cards are inserted but no card accessibility is required. Even though power may or may not still be applied, all pull-ups and their associated inputs will be disabled. Bit 7:6 -- DMA Enable (CL-PD6722 only) On the CL-PD6722, DMA Enable bits 6 and 7 enable the DMA operation of the PC Card socket. At reset these bits are set to `0', and this is non-DMA mode. If either or both of these bits is set, the socket is in DMA mode. The three codes that cause DMA mode also select the use of one of three pins for the active-low -DREQ input at the PC Card interface. Bit 7 0 1 1 Bit 6 1 0 1 Pin Used -INPACK WP/-IOIS16 BVD2/-SPKR For cards requiring DMA services but also needing input acknowledge functionality, or needing to indicate the size of I/O registers within a window, or needing digital speaker or LED operation, the selection of the -DREQ signal to the socket is made to be as flexible as possible. 9.7.3 Maximum DMA Acknowledge Delay (CL-PD6722 only) Register Per: socket Register Compatibility Type: ext. Extended Index: 04h Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Register Name: Maximum DMA Acknowledge Delay Index: 2Fh Bit 7 Bit 6 Bit 5 Maximum DMA Acknowledge Delay RW:00000000 During a DMA data transfer process, an ISA-based system typically follows its issuance of a DMA acknowledge with a DMA read or write cycle. However, during a DMA write-verify operation, a system can issue a DMA acknowledge without following it with a DMA read or write cycle. Because a DMA-capable PC Card receives DMA acknowledgment only by reception of a DMA read or write cycle, conditions may occur where the card never receives a DMA acknowledge. To prevent this from happening in an ISAbased system, a maximum DMA acknowledge delay feature has been added that generates a `dummy' DMA write cycle (reads DMA data from the card) if there are no system-generated DMA read or write cycles to the card within a programmable time. Once a DMA acknowledge is received from the system, the CL-PD6722 starts counting the time from the assertion of the DACK* signal until the system issues a DMA read or write command (IOR* or IOW*). If this interval exceeds the programmed time, the CL-PD6722 assumes that a system write-verify is in progress and generates a dummy DMA write cycle at the PC Card interface. This allows the passing of the DMA acknowledge (and terminal count status) to the card so it can perform any intended verify-cycle functions. May 1997 67 PRELIMINARY DATA SHEET v3.1 EXTENSION REGISTERS CL-PD6710/'22 ISA-to-PC-Card Host Adapters DREQ t1 t2 DACK* AEN IOR*/IOW* t1 = time delay from DMA acknowledge to IOR* or IOW* command (specified by system design). t2 = time to program into the Maximum DMA Acknowledge Delay register for when IOR* or IOW* falling edge does not occur (t2 > t1). Figure 9-2. Selection of Acknowledge Time-out Interval The maximum DMA acknowledge delay (t2 as shown in Figure 9-2) should be programmed to a time greater than the maximum time required from the system's issuance of a DMA acknowledge to its issuance of a DMA read or write cycle (t1 as shown in Figure 9-2). The t1 time is indicated in the specifications for the systems DMA cycle timing. Typical system specifications for t1 are 190-270 ns, making a value of 80h for the Maximum DMA Acknowledge Delay register suitable for many applications. If the CL-PD6722 is used in an add-in card application, a value of 20h may be suitable. Table 9-1 shows Maximum DMA Acknowledge Delay register values to be programmed for a desired maximum DMA acknowledge delay. Table 9-1. Maximum DMA Acknowledge Delay Register Values Maximum DMA Acknowledge Delay (25-MHz internal clock and default Setup timing) 7 clocks = 280 ns 8 clocks = 320 ns 9 clocks = 360 ns 10 clocks = 400 ns 11 clocks = 440 ns 12 clocks = 480 ns 13 clocks = 520 ns 14 clocks = 560 ns 15 clocks = 600 ns 16 clocks = 640 ns 17 clocks = 680 ns 18 clocks = 720 ns 19 clocks = 760 ns Register Value 80h 40h C0h 20h A0h 60h E0h 10h 90h 50h D0h 30h B0h 68 EXTENSION REGISTERS PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 9.7.4 External Data (CL-PD6722 only, Socket A, Index 2Fh) Extended Index: 0Ah Bit 5 Bit 4 Bit 3 Bit 2 Register Per: socket Register Compatibility Type: ext. Bit 1 Bit 0 Register Name: External Data Index: 2Fh only Bit 7 Bit 6 External Data External Data External Data External Data External Data External Data External Data External Data 7 6 5 4 3 2 1 0 RW:0 RW:0 RW:0 RW:0 RW:0 RW:0 RW:0 RW:0 Bits 7:0 -- External Data This register is updated and accessed according to the setting of bits 3 and 4 of the Socket A Extension Control 2 register (Index 2Fh, Extended Index 0Bh). Table 9-2. Functions of Socket A External Data Register Socket A Extension Control 2 Bit 4: GPSTB on IOW* 0 0 Bit 3: GPSTB on IOR* 0 1 Scratchpad Function of Socket A External Data Register External read port: A_GPSTB is a read buffer enable for external data on SD[15:8] External write port: A_GPSTB is a write latch enable for SD[15:8] to get latched to an external register. Reads of Socket A External Data register produce the value written to the latch. Reserved 1 1 0 1 NOTE: For software compatibility of external data access accross the Cirrus Logic PC Card host adapter product line, the Socket A External Data register should only be used as a write port and not as a read port. Also for compatibility, only the lower nibble of External Data should be accessed and the upper nibble should be ignored. Refer to Chapter 12 for more information on the use of the External Data register. May 1997 PRELIMINARY DATA SHEET v3.1 EXTENSION REGISTERS 69 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 9.7.5 External Data (CL-PD6722 only, Socket A, Index 6Fh) Extended Index: 0Ah Bit 5 Bit 4 Bit 3 Bit 2 Register Per: socket Register Compatibility Type: ext. Bit 1 Bit 0 Register Name: External Data Index: 6Fh only Bit 7 Bit 6 External Data External Data External Data External Data 7 6 5 4 RW:0 RW:0 RW:0 RW:0 External Data External Data External Data External Data 3 or 2 or 1 or 0 or B_VS2# Input B_VS1# Input A_VS2# Input A_VS1# Input R:0 R:0 R:0 R:0 Bits 7:0 -- External Data This register is updated and accessed according to the setting of bits 3 and 4 of the Socket B Extension Control 2 register (Index 6Fh, Extended Index 0Bh). Table 9-3. Functions of Socket B External Data Register (CL-PD6722 only) Socket B Extension Control 2 Bit 4: GPSTB on IOW* 0 Bit 3: GPSTB on IOR* 0 Function of Socket B External Data Register Bits 7:4 -- scratchpad Bits 3:2 -- Socket B VS2# and VS1# levels (CL-PD6722 only) Bits 1:0 -- Socket A VS2# and VS1# levels External read port: B_GPSTB is a read buffer enable for external data on SD[15:8]. External write port: B_GPSTB is a write latch enable for SD[15:8] to get latched to an external register. Reads of Socket B External Data register produce the value written to the latch. Reserved 0 1 1 1 0 1 NOTE: For software compatibility of external data access accross the Cirrus Logic PC Card host adapter product line, the Socket B External Data register should only be used as a read port and not as a write port. Also for compatibility, only the lower nibble of External Data should be accessed and the upper nibble should be ignored. For software compatibility with VS1# and VS2# detection software, when Socket B is used as a read port, socket VS1# and VS2# signals should be connected to the external read buffer as shown in Figure 13-1 on page 82. Refer to Chapter 12 for more information on the use of the External Data register, and Chapter 13 for more information on VS1# and VS2# detection. 70 EXTENSION REGISTERS PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 9.7.6 Extension Control 2 (CL-PD6722 only) Extended Index: 0Bh Bit 4 GPSTB on IOW* RW:0 Register Name: Extension Control 2 Index: 2Fh Bit 7 Bit 6 Bit 5 Reserved RW:00 Register Per: socket Register Compatibility Type: ext. Bit 2 Totem-pole GPSTB RW:0 Bit 3 GPSTB on IOR* RW:0 Bit 1 Reserved RW:00 Bit 0 Active-high GPSTB RW:0 Bit 5 -- Active-high GPSTB 0 1 GPSTB ouputs are active-low. GPSTB ouputs are active-high. Bit 4 -- GPSTB on IOW* (CL-PD6722 only) 0 1 A_GPSTB (CL-PD6722) pins are used as voltage sense. A_GPSTB (CL-PD6722) pins are used to strobe I/O writes on SD[15:8]. Note that setting this bit forces the pull-ups on A_GPSTB (CL-PD6722) to be off, independent of the setting of the Pull-Up Control bit (index 2Fh, extended index 03h, bit 5). See Section 9.7.5, Chapter 12, and Chapter 13. Bit 3 -- GPSTB on IOR* (CL-PD6722 only) 0 1 B_GPSTB (CL-PD6722) pins (socket B) are used as voltage sense. B_GPSTB (CL-PD6722) pins are used to strobe I/O reads on SD[15:8]. Note that setting this bit forces the pull-ups on B_GPSTB (CL-PD6722) to be off, independent of the setting of the Pull-Up Control bit (index 6Fh, extended index 03h, bit 5). See Section 9.7.5, Chapter 12, and Chapter 13. Bit 2 -- Totem-pole GPSTB 0 1 GPSTB ouputs are open-collector. GPSTB ouputs are totem-pole. When GPSTB outputs are totem-pole, their `high' level is driven to the level of the +5V pin, instead of high-impedance. May 1997 PRELIMINARY DATA SHEET v3.1 EXTENSION REGISTERS 71 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 10. TIMING REGISTERS The following information about the timing registers is important: q All timing registers take effect immediately and should only be changed when the FIFO is empty (see the FIFO Control register on page 60). Selection of Timing 0 or Timing 1 register sets is controlled by I/O Window Control, bit 3 and/or bit 7 (see page 49). q 10.1 Setup Timing 0-1 Register Name: Setup Timing 0-1 Index: 3Ah, 3Dh Bit 7 Bit 6 Bit 5 Setup Prescalar Select RW:00 Register Per: socket Register Compatibility Type: 365 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Setup Multiplier Value RW:000001 There are two separate Setup Timing registers, each with identical fields. These registers are located at the following indexes: Index 3Ah 3Dh Setup Timing Setup Timing 0 Setup Timing 1 The Setup Timing register for each timing set controls how long a PC Card cycle's command (that is, -OE, -WE, -IORD, -IOWR; see page 16) setup will be, in terms of the number of internal clock cycles. The overall command setup number of clocks S is programmed by selecting a 2-bit prescaling value (bits 7:6 of this register) representing weights of 1, 16, 256, or 8192, and then selecting a multiplier value (bits 5:0) to which that prescalar is multiplied to produce the overall command setup timing length according to the following formula: S = (Npres x Nval) + 1 Equation 10-1 The value of S, representing the number of internal clock cycles for command setup, is then multiplied by the internal clock's period to determine the command setup time (see Section 15.3.6 for further discussion). Bits 5:0 -- Setup Multiplier Value This field indicates an integer value Nval from 0 to 63; it is combined with a prescalar value (bits 7:6) to control the length of setup time before a command becomes active. Bits 7:6 -- Setup Prescalar Select 00 01 10 11 Npres = 1 Npres = 16 Npres = 256 Npres = 8192 This field chooses one of four prescalar values Npres that are combined with the value of the Setup Multiplier Value (bits 5:0) to control the length of setup time before a command becomes active. 72 TIMING REGISTERS PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 10.2 Command Timing 0-1 Register Name: Command Timing 0-1 Index: 3Bh, 3Eh Bit 7 Bit 6 Bit 5 Command Prescalar Select RW:00 a Register Per: socket Register Compatibility Type: 365 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Command Multiplier Value RW:000110/001111 a Timing set 0 (index 3Bh) resets to 06h for socket timing equal to standard AT-bus-based cycle times. Timing set 1 (3Eh) resets to 0Fh for socket timings equal to standard AT-bus timing using one additional wait state. There are two separate Command Timing registers, each with identical fields. These registers are located at the following indexes: Index 3Bh 3Eh Command Timing Command Timing 0 Command Timing 1 The Command Timing register for each timing set controls how long a PC Card cycle's command (that is, -OE, -WE, -IORD, -IOWR; see page 16) active time will be, in terms of the number of internal clock cycles. The overall command timing length C is programmed by selecting a 2-bit prescaling value (bits 7:6 of this register) representing weights of 1, 16, 256, or 8192, and then selecting a multiplier value (bits 5:0) to which that prescalar is multiplied to produce the overall command timing length according to the following formula: C = (Npres x Nval) + 1 Equation 10-2 The value of C, representing the number of internal clock cycles for a command, is then multiplied by the internal clock's period to determine the command active time (see Section 15.3.6 for further discussion). Bits 5:0 -- Command Multiplier Value This field indicates an integer value Nval from 0 to 63; it is combined with a prescalar value (bits 7:6) to control the length that a command is active. Bits 7:6 -- Command Prescalar Select 00 01 10 11 Npres = 1 Npres = 16 Npres = 256 Npres = 8192 This field chooses one of four prescalar values Npres that are combined with the value of the Command Multiplier Value (bits 5:0) to control the length that a command is active. May 1997 PRELIMINARY DATA SHEET v3.1 TIMING REGISTERS 73 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 10.3 Recovery Timing 0-1 Register Name: Recovery Timing 0-1 Index: 3Ch, 3Fh Bit 7 Bit 6 Bit 5 Recovery Prescalar Select RW:00 Register Per: socket Register Compatibility Type: 365 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Recovery Multiplier Value RW:000011 There are two separate Recover Timing registers, each with identical fields. These registers are located at the following indexes: Index 3Ch 3Fh Recovery Timing Recovery Timing 0 Recovery Timing 1 The Recovery Timing register for each timing set controls how long a PC Card cycle's command (that is, -OE, -WE, -IORD, -IOWR; see page 16) recovery will be, in terms of the number of internal clock cycles. The overall command recovery timing length R is programmed by selecting a 2-bit prescaling value (bits 7:6 of this register) representing weights of 1, 16, 256, or 8192, and then selecting a multiplier value (bits 5:0) to which that prescalar is multiplied to produce the overall command recovery timing length according to the following formula: R = (Npres x Nval) + 1 Equation 10-3 The value of R, representing the number of internal clock cycles for command recovery, is then multiplied by the internal clock's period to determine the command recovery time (see Section 15.3.6 for further discussion). Bits 5:0 -- Recovery Multiplier Value This field indicates an integer value Nval from 0 to 63; it is combined with a prescalar value (bits 7:6) to control the length of recovery time after a command is active. Bits 7:6 -- Recovery Prescalar Select 00 01 10 11 Npres = 1 Npres = 16 Npres = 256 Npres = 8192 This field chooses one of four prescalar values Npres that are combined with the value of the Recovery Multiplier Value (bits 5:0) to control the length of recovery time after a command is active. 74 TIMING REGISTERS PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 11. ATA MODE OPERATION The CL-PD67XX PC Card interfaces can be dynamically configured to support a PC Card-compatible ATA disk interface (commonly known as `IDE') instead of the standard PC Card interface. Disk drives that can be made mechanically-compatible with PC Card dimensions can thus operate through the socket using the ATA electrical interface. Configuring a socket to support ATA operation changes the function of certain card socket signals to support the needs of the ATA disk interface. Table 11-1 lists each interface pin and its function when a CL-PD67XX card socket is operating in ATA mode. Refer to application note AN-PD5, Configuring PCMCIA Sockets for ATA Drive Interface, for more information. All register functions of the CL-PD67XX are available in ATA mode, including socket power control, interface signal disabling, and card window control. No memory operations are allowed in ATA mode. Table 11-1. PC Card Socket Pin Number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 ATA Pin Cross-Reference Function PC Card Interface Ground D3 D4 D5 D6 D7 -CE1 A10 -OE A11 A9 A8 A13 A14 -WE -IREQ VCC VPP1 A16 A15 Table 11-1. PC Card Socket Pin Number 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 ATA Pin Cross-Reference (cont.) Function PC Card Interface A12 A7 A6 A5 A4 A3 A2 A1 A0 D0 D1 D2 -IOIS16 Ground Ground -CD1 D11 D12 D13 ATA Interface Ground D3 D4 D5 D6 D7 -CS0 n/c -ATA (always low) n/c CS1* n/c n/c n/c n/c IREQ VCC n/c n/c n/c ATA Interface n/c n/c n/c n/c n/c n/c A2 A1 A0 D0 D1 D2 -IOIS16 Ground Ground -CD1 D11 D12 D13 May 1997 PRELIMINARY DATA SHEET v3.1 ATA MODE OPERATION 75 CL-PD6710/'22 ISA-to-PC-Card Host Adapters Table 11-1. PC Card Socket Pin Number 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 ATA Pin Cross-Reference (cont.) Function PC Card Interface D14 D15 -CE2 VS1 -IORD -IOWR A17 A18 A19 A20 A21 VCC VPP2 A22 A23 A24 Table 11-1. PC Card Socket Pin Number 56 57 58 59 60 61 62 63 64 65 66 67 68 a ATA Pin Cross-Reference (cont.) Function PC Card Interface A25 VS2 RESET -WAIT -INPACK -REG -SPKR -STSCHG D8 D9 D10 -CD2 Ground ATA Interface D14 D15 -CS1 VS1 -IORD -IOWR n/c n/c n/c n/c n/c VCC n/c n/c VU -M/S ATA Interface CSEL VS2 RESET* IOCHRDY DREQ a -DACKa -LED -PDIAGa D8 D9 D10 -CD2 Ground Not supported by the CL-PD67XX. 76 ATA MODE OPERATION PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 12. USING GPSTB PINS FOR EXTERNAL PORT CONTROL (CL-PD6722 only) The CL-PD6722 provides pins that can be programmed to function as general-purpose strobes to external latches or buffers, allowing them to serve as read ports or write ports mapped into the CL-PD6722 register set. Configuring a GPSTB pin as a read port allows an easy way to read additional card status such as VS1# and VS2# levels, a card socket microswitch status, a card port cover microswitch status, card eject solenoid position status, or general system signal status. Configuring a GPSTB pin as a write port allows an easy way to control additional features such as cardstate LEDs, card mechanism solenoids, or motor eject mechanisms. 12.1 Control of GPSTB Pins The Extension Control 2 register controls the GPSTB pins. For the CL-PD6722, the A_GPSTB pin is controlled by the Extension Control 2 register at Socket A (index 2Fh, extended index 0Bh), and the B_GPSTB pin is controlled by the Extension Control 2 register at Socket B (index 6Fh, extended index 0Bh). The following table summarizes how the GPSTB pins are configured and how data is accessed from external ports created by using a GPSTB pin to control an external read or write port. Table 12-1. Registers for Control and Data of GPSTB Pins Pin Name A_GPSTB (CL-PD6722) B_GPSTB (CL-PD6722) GPSTB Control Access Set register 2E to 0Bh, access Extension Control 2 register at 2F Set register 6E to 0Bh, access Extension Control 2 register at 6F External Port Data Access Set register 2E to 0Ah, access External Data register at 2F Set register 6E to 0Ah, access External Data register at 6F Programming the Extension Control 2 Register There is one Extension Control 2 register per GPSTB pin. Each register has identical GPSTB control bits, as follows. See also the description of this register in Section 9.7.6. Register Name: Extension Control 2 Index: 2Fh and 6Fh Bit 7 Bit 6 Bit 5 Reserved RW:00 Extended Index: 0Bh Bit 4 GPSTB on IOW* RW:0 Register Per: socket Register Compatibility Type: ext. Bit 2 Totem-pole GPSTB RW:0 Bit 3 GPSTB on IOR* RW:0 Bit 1 Reserved RW:00 Bit 0 Active-high GPSTB RW:0 Bit 5 allows programming of the active level of GPSTB, with the default being active-low. Setting bit 5 to `1' causes a GPSTB output to be low normally and high (active) upon external data access. May 1997 PRELIMINARY DATA SHEET v3.1 USING GPSTB PINS FOR EXTERNAL PORT CONTROL (CL-PD6722 only) 77 CL-PD6710/'22 ISA-to-PC-Card Host Adapters Bit 4 controls use of the respective GPSTB pin as a write strobe for an external general-purpose latch. When the respective extended index is set to 0Ah and the index register is set to the respective 2Fh or 6Fh setting, I/O writes that access address 3E1h will result in the respective GPSTB signal being driven active for the duration of the ISA bus IOW* signal being driven low. Bit 3 controls use of the respective GPSTB pin a read strobe for an external general-purpose buffer. When the respective extended index is set to 0Ah and the index register is set to the respective 2Fh or 6Fh setting, I/O reads that access address 3E1h will result in the respective GPSTB signal being driven active for the duration of the ISA bus IOR* signal being driven low. Bit 2 cause the GPSTB output to be totem-pole instead of the default open-collector configuration. When GPSTB outputs are totem-pole, their `high' level is driven to the voltage of the `+5V' pin, instead of to highimpedance. If neither bit 3 nor bit 4 is set, the respective GPSTB pin functions as a reserved input in a CL-PD6722 that is an internal pull-up to the `+5V' pin. This internal pull-up is turned off whenever the GPSTB pin is configured as a general-purpose strobe, or when the respective socket's Pull-up Control bit is set to `1'. Bits 7:6 and 1:0 are reserved and must be programmed to `0'. These bits should not be used as scratchpad bits. External Data Port Access through the External Data Register Data to be accessed from an external read or write port is mapped to the respective External Data register at Extended Index 0Ah. This allows external data to be accessed as if it were a register in the CL-PD67XX register set. To achieve this mapping, the external data port's buffer or latch data connections should be made to SD[15:8] of the system bus for 16-bit systems, and to SD[7:0] of the system bus for 8-bit systems. To support readback of data written to an external I/O port by use of a GPSTB pin, a shadow of the external data register exists, which is read when an I/O read is done from the external data register location corresponding to a GPSTB pin programmed as a write strobe. For more information on the Socket A and Socket B versions of this register, see the description of this register in Section 9.7.4 and Section 9.7.5. Register Name: External Data Index: 2Fh Bit 7 Bit 6 Register Per: socket Register Compatibility Type: ext. Bit 2 Bit 1 Bit 0 Extended Index: 0Ah Bit 5 Bit 4 Bit 3 External Data External Data External Data External Data External Data External Data External Data External Data 7 6 5 4 3 2 1 0 RW:0 RW:0 RW:0 RW:0 RW:0 RW:0 RW:0 RW:0 78 USING GPSTB PINS FOR EXTERNAL PORT CONTROL (CL-PD6722 only) PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 12.2 Example Implementations of GPSTB-Controlled Read and Write Ports Pull-up CL-PD6722 IOW* IOW* GPSTB SD[15:0] (16-bit bus) SD[15:0] SD[15:8] EXT_WR* Latch (for example, '374) CK O7 GeneralPurpose Outputs D O0 PWRGOOD RES Pull-up resistor, or set Extension Control 2 bit 2 to `1' for totem-pole output. Figure 12-1. Example GPSTB Write Port (Extension Control 2 bits 4:3 are `10') In this mode, Extension Control 2 register bit 4 is set to `1' enabling the GPSTB pin to function as a write strobe. Writes to the respective extended index 0Ah cause the respective GPSTB to go active (low) for the duration of the system's IOW* pulse. On writes, data is written to both the external latch and the internal shadow copy of the External Data register. A read of the respective extended index 0Ah would produce the last value written to the latch. Connection of the ISA bus PWRGOOD signal to the external latch ensures that the latch assumes all `0's at its outputs when the CL-PD67XX is reset. CL-PD6722 IOR* IOR* GPSTB SD[15:0] (16-bit bus) SD[15:0] Tristate Buffer (for example, '244) EXT_RD* GeneralPurpose Inputs Pull-up D0 OE D7 SD[15:8] O Pull-up resistor, or set Extension Control 2 bit 2 to `1' for totem-pole output. Figure 12-2. Example GPSTB Read Port (Extension Control 2 bits 4:3 are `01') In this mode, Extension Control 2 register bit 3 is set to `1', enabling the respective GPSTB pin to function as a read strobe. Reads from the corresponding extended index 0Ah cause GPSTB to go active (default active level is low) for the duration of the system's IOR* pulse. NOTE: Data is still written to the shadowed External Data register on writes to Extended Index 0Ah but is not visible. May 1997 PRELIMINARY DATA SHEET v3.1 USING GPSTB PINS FOR EXTERNAL PORT CONTROL (CL-PD6722 only) 79 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 12.3 GPSTB in Suspend Mode GPSTB read and write strobes operate while the device is in suspend mode, but they are not allowed when the device is in hardware-assisted `Super-Suspend' mode (AEN held high while in Suspend mode). A clock to the CL-PD6722 is not required for the external signal at GPSTB to occur, but shadowing of write values in the internal register at Extended Index 0Ah requires that the CL-PD67XX is not in Suspend mode so there is an active internal clock for register writes. 80 USING GPSTB PINS FOR EXTERNAL PORT CONTROL (CL-PD6722 only) PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 13. VS1# AND VS2# VOLTAGE DETECTION The CL-PD6722 provides support for VS1# and VS2# voltage sense for environments where special lowvoltage keyed PC Card sockets are to be used. With a low-voltage keyed socket, it is necessary to determine the operating voltage range of a card before applying power to it. The CL-PD6722 supports reading of the levels on a socket's VS1# and VS2# pins through a uniform extended register programming model using Socket B extended register 0Ah. The programming model is as follows: Register Name: External Data Index: 6Fh Bit 7 Bit 6 Register Per: socket Register Compatibility Type: ext. Bit 2 B_VS1 Input R:0 Extended Index: 0Ah Bit 5 Bit 4 Bit 3 B_VS2 Input R:0 Bit 1 A_VS2 Input R:0 Bit 0 A_VS1 Input R:0 External Data External Data External Data External Data 7 6 5 4 RW:0 RW:0 RW:0 RW:0 For voltage detection on the CL-PD6710, refer to the 5V_DET pin. May 1997 PRELIMINARY DATA SHEET v3.1 VS1# AND VS2# VOLTAGE DETECTION 81 CL-PD6710/'22 ISA-to-PC-Card Host Adapters On the CL-PD6722, the B_GPSTB pin is programmed as a general-purpose read strobe. The VS1# and VS2# pins from the A and B sockets are connected to the external half of a '244 buffer as follows (which allows Socket A VS1 and VS2 to appear as bits 0 and 1, and Socket B VS1 and VS2 to appear as bits 2 and 3): CL-PD6722 +5V IOR* IOR* B_GPSTB SD[15:0] (16-bit bus) SD[15:0] 5-V Supply VS_RD* Tristate Buffer (such as 1/2 of a '244) D3 D0 OE SD[11:8] Socket A VS1# VS2# Pin 43 Pin 57 Socket B VS1# VS2# Pin 43 Pin 57 Pull-up resistor, or set Extension Control 2 bit 2 to `1' for totem-pole output. Figure 13-1. VS1# and VS2# Sensing on a CL-PD6722 (Socket B Extension Control 2 bit 3 is `1') 82 VS1# AND VS2# VOLTAGE DETECTION PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 14. DMA OPERATION (CL-PD6722 only) 14.1 DMA Capabilities of the CL-PD6722 The CL-PD6722 include support of a DMA-capable PC Card slave and the movement of DMA data to/from the card with the ISA bus as a DMA master. Only one socket at a time should be enabled for DMA transfer because the ISA bus DMA handshake signals are shared between both socket interfaces. DMA transfers to and from the DMA-capable PC Card may be 8- or 16-bit, as indicated by the size of the ISA bus DMA cycle. 1 14.2 DMA-Type PC Card Cycles Transfer of DMA data to or from a card is achieved through use of a special DMA-type PC Card interface cycle. This cycle is defined to not conflict with standard PC Card memory or I/O cycles. A card that is DMA-capable can distinguish PC Card interface cycle types presented by the CL-PD6722 according to the following table: Table 14-1. Four Card Cycle Types for DMA-Type PC Card Interface Socket Interface Cycle Type Card Memory Read/Write Attribute Memory Read/Write Card I/O Read/Write Card DMA Data Read/Write Function of -WE/-OE Data transfer signaling Data transfer signaling Always inactive high Terminal count outputs Function of -IORD/-IOWR Always inactive high Always inactive high Data transfer signaling Data transfer signaling Function of -REG Always inactive high Always low Low = non-DMA I/O cycle High = DMA cycle NOTE: Bits 7 and 6 of the Extension Control 1 register must be nonzero for Table 14-1 to be true; otherwise only standard PC Card cycles will be issued to the card. The PC Card address is also undefined during the DMA read or write cycle. Card DMA data read and write cycles transfer DMA data to or from a DMA-capable PC Card. These cycles are distinguished from normal card I/O cycles by the -REG signal being high during the cycle, which is an undefined condition in the PC Card Standard. 1 Transfer size at socket interface is the same as transfer size on an ISA bus. For 8-bit DMA transfers, connect CL-PD6722 DMA handshake signals to ISA bus DMA channels 0, 1, 2, or 3. For 16-bit transfers, connect CL-PD6722 DMA handshake signals to ISA bus DMA channels 5, 6, or 7. May 1997 PRELIMINARY DATA SHEET v3.1 DMA OPERATION (CL-PD6722 only) 83 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 14.3 ISA Bus DMA Handshake Signal A DMA request from the card is passed to the ISA bus as long as the socket interface FIFO is empty. IRQ10 is used as the DMA request output to the ISA bus when bit 2 of the Misc Control 2 register is `1'. When bit 2 of the Misc Control 2 register is `1', IRQ9 is redefined as the active-low DMA acknowledge input from the ISA bus. This signal must remain active for all DMA transfers through the CL-PD6722. CL-PD6722 DREQ IRQ10 IRQ9 -VPP_VALID ISA Bus -DACK TC Figure 14-1. DMA Handshake Connections to the ISA Bus to Make the CL-PD6722 DMA-Capable Terminal counts are passed through to the card from the CL-PD6722 -VPP_VALID pin when bit 6 of the Misc Control 2 register is `1'. For a DMA write process, the last-cycle terminal count condition is indicated by -OE being active-low during a card DMA data read cycle. For a DMA read process, terminal count is indicated by -WE being active-low during the last card cycle. 14.4 Configuring the CL-PD6722 Registers for a DMA Transfer Program the registers as follows to configure a CL-PD6722 socket interface for DMA transfer to/from a DMA-capable PC Card: 1. Select which pin on the PC Card interface will serve as the DMA request input. 2. Configure the socket interface as I/O-capable. 3. Prevent dual-interpretation of socket interface DMA handshake signals. 4. Set the DMA Enable bit. 84 DMA OPERATION (CL-PD6722 only) PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 14.4.1 Programming the DMA Request Pin from the Card The CL-PD6722 allows selection of one from three PC Card interface inputs to be redefined as the DMA request input, and it also allows programming of the active level of the selected input. This is done by setting bits 7 and 6 of the Extension Control 1 register to the desired values matching those of the DMAcapable PC Card to be used. Once this selection of DMA request input is complete, the PC Card interface is configured at the signal level for DMA card interfacing. The following table shows how the CL-PD6722 socket interface signals are redefined when a card is in DMA card interface mode: Standard I/O Card Interface Signal Name -IOIS16 (BVD2/) -SPKR/-LED -INPACK -REG -OE -WE DMA-Capable Card Interface Signal Usage -IOIS16 or may be selected as the active-low DMA request input -SPKR/-LED or may be selected as the active-low DMA request input -INPACK or may be selected as the activelow DMA request input -REG during standard cycles, active-high DACK during DMA read/write cycles -OE during standard cycles, active-low -TC during DMA write cycles -WE during standard cycles, active-low -TC during DMA read cycles When Signal Redefinition for DMA Interface is Effective Extension Control 1 register bits 7-6 = `10' Extension Control 1 register bits 7-6 = `11' Extension Control 1 register bits 7-6 = `01' Only during actual card DMA read or write cycle During DMA write cycles (that is, when -REG is high and -IORD is low) During DMA read cycles (that is, when -REG is high and -IOWR is low) CL-PD6722 -IOIS16, -SPKR, or -INPACK -REG -OE/-WE -DREQ DACKa -TC PC Card -IOIS16, -SPKR, or -INPACK -REG -OE/-WE a A DMA cycle is the DMA acknowledge to the card. Figure 14-2. Card DMA Request and Acknowledge Handshake with Terminal Count Notice that the DMA acknowledge to the card as -REG high is only active during the actual DMA read or write card cycle. This means there is no mechanism to deassert DACK to the card: The card must understand that receiving the first DMA cycle is its DMA acknowledgment. May 1997 PRELIMINARY DATA SHEET v3.1 DMA OPERATION (CL-PD6722 only) 85 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 14.4.2 Configuring the Socket Interface for I/O For DMA support, bit 5 of the Interrupt and General Control register must be set to `1' to put the card interface in I/O Card Interface mode. 14.4.3 Preventing Dual Interpretation of DMA Handshake Signals If the WP/-IOIS16 pin is being used as the DMA request line, the following should be considered: 1) Bit 4 of the Interface Status register is now the level of the DMA request line from the card. 2) Bit 5 of the socket's two I/O Window Control registers should be set to `0'. If a socket's BVD2/-SPKR pin is being used as the DMA request line, speaker or LED output from that socket is not available. If -INPACK is selected as the DMA request input, then bit 7 of the Misc Control 1 register should be set to `0' to disable use of this signal as input acknowledge control. No other register bits require special settings to accommodate DMA support on a socket interface. 14.4.4 Turning On DMA System The DMA System bit (bit 6 of the Misc Control 2 register) should be programmed to `1' to allow DMA operation and to redefine ISA bus interface pins for DMA support as in Figure 14-1. 14.5 The DMA Transfer Process As soon as the selected DMA request input from the card becomes active (low) and the FIFO empties, IRQ10 becomes active (high), signifying a DMA request to the system. The system then responds with an active (low) -DACK at IRQ9, which enables the CL-PD6722 to decode any ISA bus DMA transfers that may occur and perform the corresponding transfers at the card. Normal card I/O or memory reads or writes may be interspersed with DMA read and write cycles. 14.6 Terminal Count to Card at Conclusion of Transfer At the conclusion of each transfer process, systems send active (high) TC (terminal count) pulses to the -VPP_VALID pin during the last DMA cycles to the CL-PD6722. For a DMA write cycle, TC active is signaled at the socket interface as the -OE pin going low during DMAtype read cycles from the PC Card. For a DMA read cycle, TC active is signaled as the -WE pin going low during DMA-type write cycles to the PC Card. 86 DMA OPERATION (CL-PD6722 only) PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 15. ELECTRICAL SPECIFICATIONS 15.1 Absolute Maximum Ratings Ambient temperature under bias Storage temperature Voltage on any pin (with respect to ground) Operating power dissipation Suspend power dissipation Power supply voltage Injection current (latch up) 0C to 70C -65C to 150C -0.5 volts to 0.5 volts greater than voltage of +5V pin, respective to ground 500 mW 10 mW 7 volts 25 mA CAUTION: Stresses above those listed may cause permanent damage to system components. These are stress ratings only; functional operation at these or any conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect system reliability. 15.2 DC Specifications Table 15-1. General DC Specifications Symbol CIN COUT IIL IPU Parameter Input Capacitance Output Capacitance Input Leakage Internal Pull-up Current MIN MAX 10.0 10.0 Unit pF pF A A Conditions -10.0 -30 10.0 -400 0 < VIN < respective VCC supply pin May 1997 PRELIMINARY DATA SHEET v3.1 ELECTRICAL SPECIFICATIONS 87 CL-PD6710/'22 ISA-to-PC-Card Host Adapters Table 15-2. PC Card Bus Interface DC Specifications Symbol SOCKET_VCC5V SOCKET_VCC3V Parameter Power Supply Voltage Power Supply Voltage MIN 4.5 3.0 2.0 MAX 5.5 3.6 Unit V Conditions Normal operation V V V CORE_VDD = 3.0 V, Misc Control 2 register, bit 3 is `0' CORE_VDD = 4.5 V, Misc Control 2 register, bit 3 is `1' CORE_VDD = 3.6 V, Misc Control 2 register, bit 3 is `0' CORE_VDD = 5.5 V, Misc Control 2 register, bit 3 is `1' CORE_VDD = 4.5 V, Misc Control 2 register, bit 3 is `0' CORE_VDD = 5.5 V, Misc Control 2 register, bit 3 is `0' At rated IOH, respective SOCKET_VCC = 3.0 V At rated IOHC, respective SOCKET_VCC = 3.0 V At rated IOL Respective SOCKET_VCC = 3.0 V, VOH = 2.4V Respective SOCKET_VCC = 3.0 V, VOHC = SOCKET_VCC - 0.5 V Respective SOCKET_VCC = 3.0 V, VOL = 0.5 V VIH Input High Voltage 2.0 0.8 V V V VIL Input Low Voltage 0.8 VIHC VILC VOH VOHC VOL IOH Input High Voltage CMOS Input Low Voltage CMOS Output High Voltage Output High Voltage CMOS Output Low Voltage Output High Current 0.7 VDD 0.2 VDD 2.4 SOCKET_VCC - 0.5 V V V 0.5 -2 V mA IOHC Output High Current CMOS -1 mA IOL Output Low Current 2 mA 88 ELECTRICAL SPECIFICATIONS PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters Table 15-3. ISA Bus Interface DC Specifications Symbol ISA_VCC5V ISA_VCC3V VIH a VILa VIHCa VILCa VOH VOHC VOL Parameter Power Supply Voltage Power Supply Voltage Input High Voltage Input Low Voltage Input High Voltage CMOS Input Low Voltage CMOS Output High Voltage Output High Voltage CMOS Output Low Voltage Output Current High, 2-mA-type driver MIN 4.5 3.0 2.0 MAX 5.5 3.6 Unit V V V Conditions Normal operation Normal operation CORE_VDD = 3.0 V CORE_VDD = 3.6 V CORE_VDD = 4.5 V CORE_VDD = 5.5 V At rated IOH, ISA_VCC = 3.0 V At rated IOHC, ISA_VCC = 3.0 V At rated IOL 0.8 0.7 VDD b 0.2 VDD 2.4 ISA_VCC - 0.5 b V V V V V 0.5 -2 -5 -5 -1 -1 -1 2 12 16 V mA mA mA mA mA mA mA mA mA IOH Output Current High, 12-mA-type driver Output Current High, 16-mA-type driver Output Current High CMOS, 2-mA-type driver ISA_VCC = 3.0 V, VOH = 2.4 V IOHC Output Current High CMOS, 12-mA-type driver Output Current High CMOS, 16-mA-type driver Output Current Low, 2-mA-type driver ISA_VCC = 3.0 V, VOHC = ISA_VCC - 0.5 V IOL Output Current Low, 12-mA-type driver Output Current Low, 16-mA-type driver ISA_VCC = 3.0 V, VOL = 0.5 V a When the CORE_VDD voltage is 3.3 V, input thresholds are TTL compatible; when the CORE_VDD voltage is 5 V, input thresholds are CMOS compatible. b The value of the input threshold level is dependent on the voltage applied to V DD pins of the CL-PD67XX. May 1997 PRELIMINARY DATA SHEET v3.1 ELECTRICAL SPECIFICATIONS 89 CL-PD6710/'22 ISA-to-PC-Card Host Adapters Table 15-4. Power Control Interface (+5V Powered) DC Specifications Symbol +5V VIH VIL VOH VOHC VOL IOH IOHC IOL Parameter +5V Supply Voltage Input High Voltage Input Low Voltage Output High Voltage Output High Voltage CMOS Output Low Voltage Output Current High, 16-mA-type driver Output Current High CMOS, 16-mA-type driver Output Current Low, 16-mA-type driver MIN Highest VCC - 0.3 2.0 MAX 5.5 Unit V V Conditions +5V pin voltage = 4.5 V +5V pin voltage = 5.5 V +5V pin voltage = 4.5 V, IOH = -5 mA +5V pin voltage = 4.5 V, IOH = -1 mA 0.8 2.4 +5V voltage - 0.5 0.5 -5 -1 16 V V V V mA mA mA Respective +5V pin voltage = 4.5 V, VOH = 2.4 V Respective +5V pin voltage = 4.5 V, VOHC = +5V pin voltage - 0.5 V Respective +5V pin voltage = 4.5 V, VOL = 0.5 V Table 15-5. Operating Current Specifications Symbol Parameter Power Supply Current, operating MIN TYP MAX Unit Conditions CORE_VDD = 3.3 V; +5V, SOCKET_VCC, and ISA_VCC = 5.0 V; PDISS = < 85 mW CORE_VDD = 3.3 V; +5V, SOCKET_VCC, and ISA_VCC = 5.0 V; PDISS = < 2 mW CORE_VDD = 3.3 V; +5V, SOCKET_VCC, and ISA_VCC = 5.0 V; PDISS = < 1 mW Icctot(1) <6 8 < 20 mA Icctot(2) Power Supply Current, Suspend a < 150 A Icctot(3) Power Supply Current, Super Suspend, No Clocksa < 20 A a No cards in sockets; for CL-PD6722, bit 5 of the DMA Control register is `1'. 90 ELECTRICAL SPECIFICATIONS PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 15.3 AC Timing Specifications This section includes system timing requirements for the CL-PD67XX. Timings are provided in nanoseconds (ns), at TTL input levels, with the ambient temperature varying from 0C to 70C, and VCC varying from 3.0 to 3.6 V or 4.5 to 5.5 V DC. The AT bus speed is 10 MHz unless otherwise noted. Note that an asterisk (*) denotes an active-low signal for the ISA bus interface, and a dash (-) denotes an active-low signal for the PC Card socket interface. Additionally, the following statements are true for all timing information: q q All timings assume a load of 50 pF. TTL signals are measured at TTL threshold; CMOS signals are measured at CMOS threshold. Table 15-6. List of AC Timing Specifications Title Table 15-7. ISA Bus Timing Table 15-8. Reset Timing Table 15-9. Pulse Mode Interrupt Timing Table 15-10. General-Purpose Strobe Timing Table 15-11. Input Clock Specification Table 15-12. Memory Read/Write Timing (Word Access) Table 15-13. Word I/O Read/Write Timing Table 15-14. PC Card Read/Write Timing when System Is 8-Bit Table 15-15. Normal Byte Read/Write Timing Table 15-16. 16-Bit System to 8-Bit I/O Card: Odd Byte Timing Table 15-17. DMA Read Cycle Timing (CL-PD6722 only) Table 15-18. DMA Write Cycle Timing (CL-PD6722 only) Table 15-19. DMA Request Timing (CL-PD6722 only) Page Number 92 94 95 96 97 99 100 102 103 104 105 107 109 May 1997 PRELIMINARY DATA SHEET v3.1 ELECTRICAL SPECIFICATIONS 91 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 15.3.1 ISA Bus Timing Table 15-7. ISA Bus Timing Symbol t1 t1a t1b t2 t2a t3 t4 t4a t5 t6a t6b t7 t8 t9 t10 t11 t12 t13 t14 t15 t16 t17 t18 t19 t20 1 2 3 4 5 Parameter MEMCS16* active delay from LA[23:17] valid LA[23:17] setup to ALE inactive LA[23:17] hold from ALE inactive IOCS16* active delay from SA[15:0]1 IOCS16* inactive delay from SA[15:0]1 MIN MAX 40 Unit ns ns ns 30 5 40 40 30 90 40 5 30 40 140 180 100 0 40 40 5 5 0 130 15 0 40 5 40 0 40 30 15 30 ns ns ns ns ns SA[16:0], SBHE* setup to any Command active1, 2 LA[23:17] latching by ALE to any Command active Any Command active to IOCHRDY inactive (low)3 IOCHRDY three-state from Command inactive4 MEMCS16* inactive delay from unlatched LA[23:17] IOW* or IOR* pulse width1 MEMW* or MEMR* pulse width1 ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns Any Command inactive to next Command active Address or SBHE* hold from any Command inactive Data valid from MEMW* active5 Data valid from IOW* active Data hold from MEMW* inactive Data hold from IOW* inactive Data delay from IOR* active, for internal registers Data delay from IOCHRDY active Data hold from IOR* or MEMR* inactive AEN inactive setup to valid IOR* or IOW* active AEN hold from IOR* or IOW* inactive REFRESH* inactive setup to valid MEMR* or MEMW* active REFRESH* inactive hold from MEMR* or MEMW* active MEMCS16* active delay from SA[16:12] valid *ZWS delay from MEMW* active *ZWS hold from MEMW* inactive AEN must be inactive for t2, t3, and t6 timing specifications to be applicable. Command is defined as IOR*, IOW*, MEMR*, or MEMW*. Except for valid card memory writes, which are zero wait state when internal write FIFO is not full. If card is removed during a card access cycle, IOCHRDY is three-stated without waiting for end of Command. Based on 25-MHz internal clock, produced either by an internal synthesizer and 14.318-MHz signal applied to CLK pin, or by supplying 25 MHz directly to CLK pin and bypassing the internal synthesizer. 92 ELECTRICAL SPECIFICATIONS PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters ALE t1a LA[23:17] t1b VALID VALID SA[16:0] SBHE* t1 MEMCS16* t18 VALID t8 t5 t2 IOCS16* t3 MEMR*, MEMW* IOR*, IOW* t4 IOCHRDY t9 WRITE DATA t11 READ DATA t14 AEN t12 t15 t13 t10 t2a t6a, t6b t7 t4a REFRESH* t16 t19 t17 t20 ZWS* Figure 15-1. Bus Timing -- ISA Bus May 1997 PRELIMINARY DATA SHEET v3.1 ELECTRICAL SPECIFICATIONS 93 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 15.3.2 Reset Timing Table 15-8. Reset Timing Symbol t1 t2 t3 1 Parameter PWRGOOD generated reset pulse width Clock active before end of reset1 End of PWRGOOD generated reset to first Command MIN 500 500 500 MAX Units ns ns ns Clock input must be active for a minimum of 500 ns before PWRGOOD goes active to allow sufficient internal clocks to initialize internal circuitry. t1 PWRGOOD t2 CLK MEMR*, MEMW* IOR*, IOW* t3 Figure 15-2. Reset Timing 94 ELECTRICAL SPECIFICATIONS PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 15.3.3 System Interrupt Timing Table 15-9. Pulse Mode Interrupt Timing Symbol t1 IRQ[XX] low or high Parameter MIN 2 CLK - 10 ns MAX 2 CLK + 10 ns IRQ[XX] High-Z High-Z t1 t1 High-Z = high impedance NOTE: Each time indicated is 2 clock periods of the CLK input to the CL-PD67XX, independent of setting of the Bypass Frequency Synthesizer bit. Figure 15-3. Pulse Mode Interrupt Timing May 1997 PRELIMINARY DATA SHEET v3.1 ELECTRICAL SPECIFICATIONS 95 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 15.3.4 General-Purpose Strobe Timing (CL-PD6722 only) Table 15-10.General-Purpose Strobe Timing Symbol t1 t2 Parameter GPSTB delay after IOR* or IOW* active GPSTB delay after IOR* or IOW* inactive MIN MAX 40 40 Units ns ns t1 IOR*, IOW* t2 GPSTB Figure 15-4. General-Purpose Strobe Timing 96 ELECTRICAL SPECIFICATIONS PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 15.3.5 Input Clock Specification Table 15-11.Input Clock Specification Symbol t1 t2 t3 t4 Vcenter TCLKP Parameter CLK pin input rise time CLK pin input fall time CLK input low period CLK input high period Center voltage at which period specified Input clock period, internal clock MIN 1 1 0.4 TCLKP 0.4 TCLKP 0.5 VDD 69.84 - 0.1% MAX 7 7 0.6 TCLKP 0.6 TCLKP 0.5 VDD 69.84 + 0.1% Units ns ns ns ns V ns Conditions Normal synthesizer operation. Misc Control 2 register, bit 0 = `0'. CLK pin at 14.318 MHz. Synthesizer bypassed. Misc Control 2 register, bit 0 = `1'. CLK pin at 25 MHz. CORE_VDD = 3.0 V CORE_VDD = 3.6 V CORE_VDD = 4.5 V CORE_VDD = 5.5 V TCLKP Input clock period, external clock 40 - 0.1% 40 + 0.1% ns VIHmin VILmax VIHCmin VILCmax CLK input high voltage CLK input low voltage CLK input high voltage CLK input low voltage 2.0 0.8 0.7 VDD 0.2 VDD V V V V t1 VIHmin, VIHCmin t2 Vcenter VILmax, VILCmax CLK t3 t4 TCLKP Figure 15-5. Input Clock Specification May 1997 PRELIMINARY DATA SHEET v3.1 ELECTRICAL SPECIFICATIONS 97 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 15.3.6 PC Card Bus Timing Calculations Calculations for minimum PC Card cycle Setup, Command, and Recovery timings are made by first calculating factors derived from the applicable timer set's timing registers and then by applying the factor to an equation relating it to the internal clock period. The PC Card cycle timing factors, in terms of the number of internal clocks, are calculated as follows: S = (Npres x Nval) + 1 C = (Npres x Nval) + 1 R = (Npres x Nval) + 1 Equation 15-1 Equation 15-2 Equation 15-3 Npres and Nval are the specific selected prescaler and multiplier value from the timer set's Setup, Command, and Recovery Timing registers (see Chapter 10 for a description of these registers). From this, a PC Card cycle's Setup, Command, and Recovery time for the selected timer set are calculated as follows: Setup time = (S x Tcp) 10 ns Command time = (C x Tcp) 10 ns Recovery time = (R x Tcp) 10 ns When the internal synthesizer is used, the calculation of the internal clock period Tcp is: Equation 15-4 Equation 15-5 Equation 15-6 Tcp = TCLKP x 4/7 Equation 15-7 where TCLKP is the period of the clock supplied to the CLK input pin. An input frequency of 14.318 MHz at the CLK input pin results in an internal clock period of Tcp = 40 ns. When the internal synthesizer is bypassed, Tcp = TCLKP . An input frequency of 25 MHz in this circumstance would also result in an internal clock period of Tcp = 40 ns. The timing diagrams that follow were derived for a CL-PD67XX using the internal synthesizer and a 14.318-MHz CLK pin input. The internal clock frequency of the CL-PD67XX is 7/4 of this incoming signal (Tcp = 40 ns). The examples are for the default values of the Timing registers for Timer Set 0, as follows: Timing Register Name (Timer Set 0) Setup Timing 0 Command Timing 0 Recovery Timing 0 Index 3Ah 3Bh 3Ch Value (Default) 01h 06h 03h Resultant Npres 1 1 1 Resultant Nval 1 6 3 Thus the minimum times for the default values are as follows: Default minimum Setup time = (S x Tcp) - 10 ns = {2 x 40 ns} - 10 ns = 70 ns 98 Equation 15-8 ELECTRICAL SPECIFICATIONS PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters Default minimum Command time = (C x Tcp) - 10 ns = {7 x 40 ns} - 10 ns = 270 ns Default minimum Recovery time = (R x Tcp) - 10 ns = {4 x 40 ns} - 10 ns = 150 ns 15.3.7 PC Card Socket Timing Equation 15-9 Equation 15-10 Table 15-12. Memory Read/Write Timing (Word Access) Symbol t1 t2 t3 t4 t5 t6 t7 t8 1 Parameter -CE[2:1], -REG, Address, and Write Data setup to Command active1 Command pulse width2 Address hold and Write Data valid from Command -WAIT active from Command active4 Command hold from -WAIT inactive Data valid from -WAIT inactive Data setup before -OE inactive Data hold after -OE inactive inactive3 MIN (S x Tcp) - 10 (C x Tcp) - 10 (R x Tcp) - 10 MAX Units ns ns ns (C - 2)Tcp - 10 (2 Tcp) + 10 Tcp + 10 (2 Tcp) + 10 0 ns ns ns ns ns The Setup time is determined by the value programmed into the Setup Timing register, index 3Ah/3Dh. Using the Timer Set 0 default value of 01h, the setup time would be 70 ns. S = (Npres x Nval + 1), see page 98. 2 The Command time is determined by the value programmed into the Command Timing register, index 3Bh/3Eh. Using the Timer Set 0 default value of 06h, the Command time would be 270 ns. C = (Npres x Nval + 1), see page 98. 3 The Recovery time is determined by the value programmed into the Recovery Timing register, index 3Ch/3Fh. Using the Timer Set 0 default value of 03h, the hold (Recovery) time would be 150 ns. R = (Npres x Nval + 1), see page 98. 4 For typical active timing programmed at 280 ns, maximum -WAIT timing is 190 ns after Command active. -REG, -CE[2:1], A[25:0] t1 -OE, -WE t4 -WAIT t5 t2 t3 D[15:0] Write Cycle t6 D[15:0] Read Cycle t7 t8 May 1997 PRELIMINARY DATA SHEET v3.1 ELECTRICAL SPECIFICATIONS 99 CL-PD6710/'22 ISA-to-PC-Card Host Adapters Figure 15-6. Memory Read/Write Timing Table 15-13. Word I/O Read/Write Timing Symbol t1 t2 t3 t4 t5 tref t6 t7 t6 t9 t10 1 2 3 4 5 Parameter -REG or Address setup to Command active1 Command pulse width2 Address hold and Write Data valid from Command -WAIT active from Command active4 Command hold from -WAIT inactive Card -IOIS16 delay from valid Address (PC Card specification) -IOIS16 setup time before Command end -CE2 delay from -IOIS16 active5 Data valid from -WAIT inactive Data setup before -IORD inactive Data hold after -IORD inactive inactive3 MIN (S x Tcp) - 10 (C x Tcp) - 10 (R x Tcp) - 10 MAX Units ns ns ns (C - 2)Tcp - 10 (2 Tcp) + 10 35 (3 Tcp) + 10 Tcp - 10 Tcp + 10 (2 Tcp) + 10 0 ns ns ns ns ns ns ns ns The Setup time is determined by the value programmed into the Setup Timing register, index 3Ah/3Dh. Using the Timer Set 0 default value of 01h, the setup time would be 70 ns. S = (Npres x Nval + 1), see page 98. The Command time is determined by the value programmed into the Command Timing register, index 3Bh/3Eh. Using the Timer Set 0 default value of 06h, the Command time would be 270 ns. C = (Npres x Nval + 1), see page 98. The Recovery time is determined by the value programmed into the Recovery Timing register, index 3Ch/3Fh. Using the Timer Set 0 default value of 03h, the hold (Recovery) time would be 150 ns. R = (Npres x Nval + 1), see page 98. For typical active timing programmed at 280 ns, maximum -WAIT timing is 190 ns after Command active. -IOIS16 must go low within 3Tcp + 10 ns of the cycle beginning or -IOIS16 will be ignored and -CE will not be activated. 100 ELECTRICAL SPECIFICATIONS PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters -REG, A[25:0] t1 -IOWR, -IORD t4 -WAIT tref t6 -IOIS16 t2 t5 t3 -CE1 t7 -CE2 D[15:0] Write Cycle t8 D[15:0] Read Cycle t9 t10 Figure 15-7. Word I/O Read/Write Timing May 1997 PRELIMINARY DATA SHEET v3.1 ELECTRICAL SPECIFICATIONS 101 CL-PD6710/'22 ISA-to-PC-Card Host Adapters Table 15-14. PC Card Read/Write Timing when System Is 8-Bit Symbol t1 t2 t3 t4 t5 1 Parameter -REG or Address setup to Command active1 Command pulse width2 MIN (S x Tcp) - 10 (C x Tcp) - 10 (R x Tcp) - 10 (2 Tcp) + 10 0 MAX Units ns ns ns ns ns Address hold from Command inactive3 Data setup before Command inactive Data hold after command inactive The Setup time is determined by the value programmed into the Setup Timing register, index 3Ah/3Dh. Using the Timer Set 0 default value of 01h, the setup time would be 70 ns. S = (Npres x Nval + 1), see page 98. 2 The Command time is determined by the value programmed into the Command Timing register, index 3Bh/3Eh. Using the Timer Set 0 default value of 06h, the Command time would be 270 ns. C = (Npres x Nval + 1), see page 98. 3 The Recovery time is determined by the value programmed into the Recovery Timing register, index 3Ch/3Fh. Using the Timer Set 0 default value of 03h, the hold (Recovery) time would be 150 ns. R = (Npres x Nval + 1), see page 98. -REG, A[25:0] t1 t2 -OE, -WE -IOWR, -IORD, -CE1 t3 D[7:0] Write Cycle Odd/even Data t4 t5 D[7:0] Read Cycle Odd/Even Data D[15:8] Read or Write Cycle XX Figure 15-8. PC Card Read/Write Timing When System Is 8-Bit (SBHE Tied High) 102 May 1997 ELECTRICAL SPECIFICATIONS PRELIMINARY DATA SHEET v3.1 CL-PD6710/'22 ISA-to-PC-Card Host Adapters Table 15-15. Normal Byte Read/Write Timing Symbol t1 t2 t3 1 Parameter Address setup to Command active1 Command pulse width2 Address hold from Command inactive3 MIN (S x Tcp) - 10 (C x Tcp) - 10 (R x Tcp) - 10 MAX Units ns ns ns The Setup time is determined by the value programmed into the Setup Timing register, index 3Ah/3Dh. Using the Timer Set 0 default value of 01h, the setup time would be 70 ns. S = (Npres x Nval + 1), see page 98. 2 The Command time is determined by the value programmed into the Command Timing register, index 3Bh/3Eh. Using the Timer Set 0 default value of 06h, the Command time would be 270 ns. C = (Npres x Nval + 1), see page 98. 3 The Recovery time is determined by the value programmed into the Recovery Timing register, index 3Ch/3Fh. Using the Timer Set 0 default value of 03h, the hold (Recovery) time would be 150 ns. R = (Npres x Nval + 1), see page 98. -REG, A[25:0] t1 -IOWR, -IORD, -OE, -WE t3 t2 -CE1 -CE2 D[7:0] Write Cycle D[7:0] Read Cycle D[15:8] Read or Write Cycle Odd/Even Data Odd/Even Data XX NOTE: Figure 15-9 applies to all other byte accesses, including odd I/O cycles where -IOIS16 is low. Figure 15-9. Normal Byte Read/Write Timing May 1997 PRELIMINARY DATA SHEET v3.1 ELECTRICAL SPECIFICATIONS 103 CL-PD6710/'22 ISA-to-PC-Card Host Adapters Table 15-16.16-Bit System to 8-Bit I/O Card: Odd Byte Timing Symbol t1 t2 t3 t4 t5 t6 1 Parameter Address change to -IOIS16 inactive4 -IOIS16 inactive to -CE2 inactive -IOIS16 inactive to -CE1 active Address setup to Command active1 Command pulse width2 Address hold from Command inactive3 MIN MAX (3Tcp) + 10 20 20 Units ns ns ns ns ns ns (S x Tcp) - 10 (C x Tcp) - 10 (R x Tcp) - 10 The Setup time is determined by the value programmed into the Setup Timing register, index 3Ah/3Dh. Using the Timer Set 0 default value of 01h, the setup time would be 70 ns. S = (Npres x Nval + 1), see page 98. 2 The Command time is determined by the value programmed into the Command Timing register, index 3Bh/3Eh. Using the Timer Set 0 default value of 06h, the Command time would be 270 ns. C = (Npres x Nval + 1), see page 98. 3 The Recovery time is determined by the value programmed into the Recovery Timing register, index 3Ch/3Fh. Using the Timer Set 0 default value of 03h, the hold (Recovery) time would be 150 ns. R = (Npres x Nval + 1), see page 98. 4 -IOIS16 level from card should be valid before -IOWR/-IORD goes active. For a typical setup time of 70 ns, a PC Card meeting the PCMCIA specification for -IOIS16 from A[25:0] change will meet this condition. -REG, A[25:0] t1 -IOIS16 t2 -CE2 t3 -CE1 t4 -IOWR, -IORD t5 t6 D[7:0] Write Cycle D[7:0] Read Cycle D[15:8] Read or Write Cycle Odd Data Odd Data XX Figure 15-10. 16-Bit System to 8-Bit I/O Card: Odd Byte Timing 104 ELECTRICAL SPECIFICATIONS PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters Table 15-17. DMA Read Cycle Timing (CL-PD6722 only) Symbol t1 t2 t3 t4 t5 t6 t7 t8 t9 1 Parameter DRQ (IRQ10) and DACK* (IRQ9) active to DMA cycle begin -CE[2:1], -REG, -IORD, -OE, and Write Data setup to -IOWR active1 Command: -IOWR pulse width2 Recovery: -IOWR inactive to end of -WAIT active from -IOWR active -WAIT inactive to -IOWR inactive System TC (-VPP_VALID high) to -IOWR -IOWR to begin of card TC (-WE)4 cycle3 MIN 40 (S x Tcp) - 10 (C x Tcp) - 10 (R x Tcp) - 10 MAX Units ns ns ns ns (C - 2)Tcp - 10 2 Tcp -40 25 25 50 50 ns ns ns ns ns End of card TC (-WE) to -IOWR inactive4 The Setup time is determined by the value programmed into the Setup Timing register, index 3Ah/3Dh. Using the Timer Set 0 default value of 01h, the setup time would be 70 ns. S = (Npres x Nval + 1), see page 98. 2 The Command time is determined by the value programmed into the Command Timing register, index 3Bh/3Eh. Using the Timer Set 0 default value of 06h, the Command time would be 270 ns. C = (Npres x Nval + 1), see page 98. 3 The Recovery time is determined by the value programmed into the Recovery Timing register, index 3Ch/3Fh. Using the Timer Set 0 default value of 03h, the hold (Recovery) time would be 150 ns. R = (Npres x Nval + 1), see page 98. 4 Based on an internal clock period of 40 ns (25 MHz). May 1997 PRELIMINARY DATA SHEET v3.1 ELECTRICAL SPECIFICATIONS 105 CL-PD6710/'22 ISA-to-PC-Card Host Adapters IRQ10 (DRQ) IRQ9 (DACK*) t1 -IORD, -OE (high) -REG (DACK* to card) -CE[2:1] t2 -IOWR t5 -WAIT DMA DATA[15:0] to card t7 -VPP_VALID (TC from system) -WE (TC to card) t8 t9 t6 t3 t4 Figure 15-11. DMA Read Cycle Timing 106 ELECTRICAL SPECIFICATIONS PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters Table 15-18. DMA Write Cycle Timing (CL-PD6722 only) Symbol t1 t2 t3 t4 t5 t6 t7 t8 t9 t10 t11 t12 1 Parameter DRQ (IRQ10) and DACK* (IRQ9) active to DMA cycle begin -CE[2:1], -REG, -IOWR, -WE, and Write Data setup to -IORD active1 Command: -IORD pulse width2 Recovery: -IORD inactive to end of -WAIT active from -IORD active -WAIT inactive to -IORD inactive System TC (-VPP_VALID high) to -IORD -IORD to begin of card TC (-OE)4 cycle3 MIN 40 (S x Tcp) - 10 (C x Tcp) - 10 (R x Tcp) - 10 MAX Units ns ns ns ns (C - 2)Tcp - 10 2 Tcp -40 25 25 Tcp + 10 (2 Tcp) +10 0 50 50 ns ns ns ns ns ns ns ns End of card TC (-OE) to -IORD inactive4 Data valid from -WAIT inactive Data setup before -OE inactive Data hold after -OE inactive The Setup time is determined by the value programmed into the Setup Timing register, index 3Ah/3Dh. Using the Timer Set 0 default value of 01h, the setup time would be 70 ns. S = (Npres x Nval + 1), see page 98. 2 The Command time is determined by the value programmed into the Command Timing register, index 3Bh/3Eh. Using the Timer Set 0 default value of 06h, the Command time would be 270 ns. C = (Npres x Nval + 1), see page 98. 3 The Recovery time is determined by the value programmed into the Recovery Timing register, index 3Ch/3Fh. Using the Timer Set 0 default value of 03h, the hold (Recovery) time would be 150 ns. R = (Npres x Nval + 1), see page 98. 4 Based on an internal clock period of 40 ns (25 MHz). May 1997 PRELIMINARY DATA SHEET v3.1 ELECTRICAL SPECIFICATIONS 107 CL-PD6710/'22 ISA-to-PC-Card Host Adapters IRQ10 (DRQ) IRQ9 (DACK*) t1 -IOWR, -WE (high) -REG (DACK* to card) -CE[2:1] t2 -IORD t5 -WAIT DMA DATA[15:0] to card t7 -VPP_VALID (TC from system) -OE (TC to card) t10 DMA DATA[15:0] from card t11 t12 t8 t9 t6 t3 t4 Figure 15-12. DMA Write Cycle Timing 108 ELECTRICAL SPECIFICATIONS PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters Table 15-19. DMA Request Timing (CL-PD6722 only) Symbol t1 1 Parameter DMA request from socket interface to system1 MIN 40 MAX Units ns After FIFO empty, DMA requests held off from being presented to the system until all write data to a card has been emptied from the socket interface FIFO. t1 -INPACK, WP/-IOIS16, or BVD2/-SPKR 2 (-DREQ from card) IRQ10 (DRQ to system) 2 DMA Control register bits 7 and 6 define which of these three signals serve as the active-low DMA request from the card. Figure 15-13. DMA Request Timing May 1997 PRELIMINARY DATA SHEET v3.1 ELECTRICAL SPECIFICATIONS 109 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 16. PACKAGE SPECIFICATIONS 16.1 144-Pin VQFP Package 21.60 (0.850) 22.40 (0.882) 19.90 (0.783) 20.10 (0.791) 0.10 (0.004) 0.30 (0.012) 19.90 (0.783) 20.10 (0.791) 21.60 (0.850) 22.40 (0.882) CL-PD6710 144-Pin VQFP 17.50 (0.689) REF 0.50 (0.0197) BSC Pin 1 Indicator Pin 144 Pin 1 17.50 (0.689) REF 1.25 (0.049) 1.50 (0.059) 1.00 (0.039) REF 0.45 (0.018) 0.75 (0.030) 0.10 (0.004) 0.20 (0.008) 1.40 (0.055) 1.65 (0.065) 0.05 (0.002) 0.15 (0.006) 0 MIN 7 MAX NOTES: 1) Dimensions are in millimeters (inches), and controlling dimension is millimeter. 2) Before beginning any new design with this device, please contact Cirrus Logic for the latest package information. 110 PACKAGE SPECIFICATIONS PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 16.2 208-Pin PQFP Package 30.35 (1.195) 30.85 (1.215) 27.90 (1.098) 28.10 (1.106) 0.13 (0.005) 0.28 (0.011) 27.90 (1.098) 28.10 (1.106) CL-PD6722 30.35 (1.195) 30.85 (1.215) 208-Pin PQFP 25.50 (1.004) REF 0.50 (0.0197) BSC Pin 1 Indicator Pin 208 Pin 1 25.50 (1.004) REF 3.17 (0.125) 3.67 (0.144) 1.30 (0.051) REF 0.40 (0.016) 0.75 (0.030) 0.09 (0.004) 0.23 (0.009) 4.07 (0.160) MAX 0.25 (0.010) MIN 0 MIN 7 MAX NOTES: 1) Dimensions are in millimeters (inches), and controlling dimension is inches. 2) Drawing above does not reflect exact package pin count. 3) Before beginning any new design with this device, please contact Cirrus Logic for the latest package information. May 1997 PRELIMINARY DATA SHEET v3.1 PACKAGE SPECIFICATIONS 111 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 16.3 208-Pin VQFP Package 29.60 (1.165) 30.40 (1.197) 27.80 (1.094) 28.20 (1.110) 0.17 (0.007) 0.27 (0.011) 27.80 (1.094) 28.20 (1.110) 29.60 (1.165) 30.40 (1.197) CL-PD6722 208-Pin VQFP 0.50 (0.0197) BSC Pin 1 Indicator Pin 208 Pin 1 0.45 (0.018) 0.75 (0.030) 1.35 (0.053) 1.45 (0.057) 1.00 (0.039) BSC 0.09 (0.004) 0.20 (0.008) 1.40 (0.055) 1.60 (0.063) 0.05 (0.002) 0.15 (0.006) 0 MIN 7 MAX NOTES: 1) Dimensions are in millimeters (inches), and controlling dimension is inches. 2) Drawing above does not reflect exact package pin count. 3) Before beginning any new design with this device, please contact Cirrus Logic for the latest package information. 112 PACKAGE SPECIFICATIONS PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters 17. ORDERING INFORMATION EXAMPLE The order number for the part is: CL - PD67XX - QC - A Cirrus Logic, Inc. Product Line: Portable Products Part Number Revision Temperature Range: C = Commercial Package Type: Q = Plastic Quad Flat Pack (CL-PD6722) V = Very-tight-pitch Quad Flat Pack Contact Cirrus Logic for up-to-date information on revisions. May 1997 PRELIMINARY DATA SHEET v3.1 ORDERING INFORMATION EXAMPLE 113 CL-PD6710/'22 ISA-to-PC-Card Host Adapters Appendix A A.Using the Cirrus Logic BBS and FTP Server Using the Cirrus Logic BBS Cirrus Logic maintains a BBS (bulletin board system) 24 hours a day for customers to obtain up-to-date files and information. For the CL-PD67XX, the BBS gives access to utilities, schematics, and software upgrades. Cirrus Logic strictly controls access to this BBS. All downloadable files are checked by Cirrus Logic and customers cannot upload files to any publicly downloadable area. Follow the steps that follow to download files. If you would like access to more restricted files, or would like to exchange files with Cirrus Logic personnel on a regular basis, contact your Cirrus Logic representative to obtain expanded access privileges. 1. Set your communication parameters as follows: q q q q 8 data bits No parity 1 stop bit Baud rate up to 14,400 bps 2. Dial the Cirrus Logic BBS at (510) 440-9080. 3. When connected, do one of the following: q Enter your name and password. First-time users can establish an account by entering a name and password and completing the questionnaire. Or, follow the instructions to log on as a `guest'. q 4. Select [J] Join Product Area. 5. Select [19] 67XX. 6. Select [F] File Menu. 7. You can now choose among the options. Many BBS files are compressed in a `zipped' file format (using PKZIP.EXE version 2.04G). These files have the suffix .ZIP appended to their names. They need to be uncompressed after downloading using PKUNZIP.EXE. If you do not have this `unzip' utility, you can download it in a self-extracting form from the Cirrus Logic BBS -- from any area, download the file called PKZ204G.EXE. 114 PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters Using the FTP Server In addition to the BBS, Cirrus Logic maintains an anonymous FTP site on the internet. The address is ftp.cirrus.com. Using any password, you can log on as anonymous or FTP. You can also access this site using a World-Wide Web browser by linking from the Cirrus Logic home page at the address http://www.cirrus.com/. NOTE: The FTP server is limited to released software drivers. BIOS, schematics, and beta software is available only on the BBS and is restricted to licensed OEMs. When you log into the FTP site, you will be in the FTP directory. Change directories to /pub/support. This the main directory of the FTP site. In the support directory, a document named ftp_contents.doc shows the FTP file names and their contents. Like the BBS, the FTP site is arranged by chip set. The support directory provides access to the desktop, laptop, modem, PCMCIA, and SIO areas. Within these directories are the chip-set subdirectories. Within these subdirectories are software files. May 1997 PRELIMINARY DATA SHEET v3.1 115 CL-PD6710/'22 ISA-to-PC-Card Host Adapters Appendix B B.Register Summary Tables B.1 Operation Registers Register Name: Index Index: n/a Bit 7 Device Index RW:0 Register Per: chip Register Compatibility Type: 365 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Bit 6 Socket Index RW:0 Register Index RW:000000 Register Name: Data Index: n/a Bit 7 Bit 6 Bit 5 Bit 4 Data Bit 3 Bit 2 Register Per: chip Register Compatibility Type: 365 Bit 1 Bit 0 B.2 Chip Control Registers Register Name: Chip Revision Index: 00h Bit 7 Bit 6 Interface ID R:10 a Register Per: chip Register Compatibility Type: 365 Bit 5 0 R:0 Bit 4 0 R:0 Bit 3 Bit 2 Revision R:0010 a Bit 1 Bit 0 Value for the current stepping only. Register Name: Interface Status Index: 01h Bit 7 Bit 6 Bit 5 -VPP_VALID RDY Register Per: socket Register Compatibility Type: 365 Bit 4 WP Bit 3 -CD2 Bit 2 -CD1 Bit 1 BVD2 Bit 0 BVD1 VPP Valid Ra Card Power On R:0 Ready/Busy* Rb Write Protect Rc Card Detect Rd Battery Voltage Detect Re 116 PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters a b Bit 7 is the inversion of the value of the -VPP_VALID pin (see page 15). Bit 5 is the value of the RDY/-IREQ pin (see page 17). c Bit 4 is the value of the WP/-IOIS16 pin (see page 17). d Bits 3:2 are the inversion of the values of the -CD1 and -CD2 pins (see page 18). e Bits 1:0 are the values of the BVD1/-STSCHG and BVD2/-SPKR pins (see page 18). Register Name: Power Control Index: 02h Bit 7 Bit 6 Card Enable RW:0 Register Per: socket Register Compatibility Type: 365 Bit 5 Bit 4 VCC Power RW:0 Bit 3 Bit 2 Bit 1 Bit 0 Compatibility Bit RW:0 Auto-Power RW:0 Compatibility Bits RW:00 VPP1 Power RW:00 Register Name: Interrupt and General Control Index: 03h Bit 7 Bit 6 Bit 5 Bit 4 Ring Indicate Enable RW:0 Register Per: socket Register Compatibility Type: 365 Bit 3 Bit 2 Bit 1 Bit 0 Card Reset* RW:0 Card Is I/O RW:0 Enable Management Interrupts RW:0 Card IRQ Select RW:0000 Register Name: Card Status Change Index: 04h Bit 7 Bit 6 Bit 5 0 R:0 Register Per: socket Register Compatibility Type: 365 Bit 4 0 R:0 Bit 3 Card Detect Change R:0 Bit 2 Ready Change R:0 Bit 1 Battery Warning Change R:0 Bit 0 Battery Dead Or Status Change R:0 0 R:0 0 R:0 Register Name: Management Interrupt Configuration Index: 05h Bit 7 Bit 6 Bit 5 Bit 4 Management IRQ Select RW:0000 Register Per: socket Register Compatibility Type: 365 Bit 3 Card Detect Enable RW:0 Bit 2 Ready Enable RW:0 Bit 1 Battery Warning Enable RW:0 Bit 0 Battery Dead Or Status Change Enable RW:0 Register Name: Mapping Enable Index: 06h Bit 7 Bit 6 Bit 5 I/O Map 1 Enable RW:0 I/O Map 0 Enable RW:0 MEMCS16 Full Decode RW:0 Register Per: socket Register Compatibility Type: 365 Bit 4 Memory Map 4 Enable RW:0 Bit 3 Memory Map 3 Enable RW:0 Bit 2 Memory Map 2 Enable RW:0 Bit 1 Memory Map 1 Enable RW:0 Bit 0 Memory Map 0 Enable RW:0 May 1997 PRELIMINARY DATA SHEET v3.1 117 CL-PD6710/'22 ISA-to-PC-Card Host Adapters B.3 I/O Window Mapping Registers Register Name: I/O Window Control Index: 07h Bit 7 Bit 6 Bit 5 Timing Register Select 1 RW:0 Register Per: socket Register Compatibility Type: 365 Bit 4 I/O Window 1 Size RW:0 Bit 3 Timing Register Select 0 RW:0 Bit 2 Compatibility Bit RW:0 Bit 1 Auto-Size I/O Window 0 RW:0 Bit 0 I/O Window 0 Size RW:0 Compatibility Bit RW:0 Auto-Size I/O Window 1 RW:0 Register Name: System I/O Map 0-1 Start Address Low Index: 08h, 0Ch Bit 7 Bit 6 Bit 5 Bit 4 Register Per: socket Register Compatibility Type: 365 Bit 3 Bit 2 Bit 1 Bit 0 Start Address 7:0 RW:00000000 Register Name: System I/O Map 0-1 Start Address High Index: 09h, 0Dh Bit 7 Bit 6 Bit 5 Bit 4 Register Per: socket Register Compatibility Type: 365 Bit 3 Bit 2 Bit 1 Bit 0 Start Address 15:8 RW:00000000 Register Name: System I/O Map 0-1 End Address Low Index: 0Ah, 0Eh Bit 7 Bit 6 Bit 5 Bit 4 Register Per: socket Register Compatibility Type: 365 Bit 3 Bit 2 Bit 1 Bit 0 End Address 7:0 RW:00000000 Register Name: System I/O Map 0-1 End Address High Index: 0Bh, 0Fh Bit 7 Bit 6 Bit 5 Bit 4 Register Per: socket Register Compatibility Type: 365 Bit 3 Bit 2 Bit 1 Bit 0 End Address 15:8 RW:00000000 118 PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters Register Name: Card I/O Map 0-1 Offset Address Low Index: 36h, 38h Bit 7 Bit 6 Bit 5 Bit 4 Offset Address 7:1 RW:0000000 a Register Per: socket Register Compatibility Type: ext. Bit 3 Bit 2 Bit 1 Bit 0 0a RW:0 This bit must be programmed to `0'. Register Name: Card I/O Map 0-1 Offset Address High Index: 37h, 39h Bit 7 Bit 6 Bit 5 Bit 4 Register Per: socket Register Compatibility Type: ext. Bit 3 Bit 2 Bit 1 Bit 0 Offset Address 15:8 RW:00000000 B.4 Memory Window Mapping Registers Register Name: System Memory Map 0-4 Start Address Low Index: 10h, 18h, 20h, 28h, 30h Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Start Address 19:12 RW:00000000 Register Per: socket Register Compatibility Type: 365 Bit 2 Bit 1 Bit 0 Register Name: System Memory Map 0-4 Start Address High Index: 11h, 19h, 21h, 29h, 31h Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Window Data Size RW:0 Register Per: socket Register Compatibility Type: 365 Bit 2 Bit 1 Bit 0 Compatibility Bit RW:0 Scratchpad Bits RW:00 Start Address 23:20 RW:0000 Register Name: System Memory Map 0-4 End Address Low Index: 12h, 1Ah, 22h, 2Ah, 32h Bit 7 Bit 6 Bit 5 Bit 4 Register Per: socket Register Compatibility Type: 365 Bit 3 Bit 2 Bit 1 Bit 0 End Address 19:12 RW:00000000 May 1997 PRELIMINARY DATA SHEET v3.1 119 CL-PD6710/'22 ISA-to-PC-Card Host Adapters Register Name: System Memory Map 0-4 End Address High Index: 13h, 1Bh, 23h, 2Bh, 33h Bit 7 Bit 6 Bit 5 Bit 4 Card Timer Select RW:00 Register Per: socket Register Compatibility Type: 365 Bit 3 Bit 2 Bit 1 Bit 0 Scratchpad Bits RW:00 End Address 23:20 RW:0000 Register Name: Card Memory Map 0-4 Offset Address Low Index: 14h, 1Ch, 24h, 2Ch, 34h Bit 7 Bit 6 Bit 5 Bit 4 Register Per: socket Register Compatibility Type: 365 Bit 3 Bit 2 Bit 1 Bit 0 Offset Address 19:12 RW:00000000 Register Name: Card Memory Map 0-4 Offset Address High Index: 15h, 1Dh, 25h, 2Dh, 35h Bit 7 Bit 6 Bit 5 Bit 4 Write Protect RW:0 Register Per: socket Register Compatibility Type: 365 Bit 3 Bit 2 Bit 1 Bit 0 REG Setting RW:0 Offset Address 25:20 RW:000000 B.5 Extension Registers Register Name: Misc Control 1 Index: 16h Bit 7 Bit 6 Register Per: socket Register Compatibility Type: ext. Bit 5 Bit 4 Speaker Enable RW:0 Bit 3 Pulse System IRQ RW:0 Bit 2 Pulse Management Interrupt RW:0 Bit 1 Bit 0 5 V Detect (CL-PD6710) Inpack Enable Scratchpad Bits VCC 3.3V Reserved (CL-PD6722) R:X W:0 RW:0 RW:00 RW:0 Register Name: FIFO Control Index: 17h Bit 7 Bit 6 Empty Write FIFO RW a Register Per: socket Register Compatibility Type: ext. Bit 5 Bit 4 Bit 3 Scratchpad Bits a RW:0000000 Bit 2 Bit 1 Bit 0 Because a write will flush the FIFO, these scratchpad bits should be used only when card activity is guaranteed not to occur. 120 PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters Register Name: Misc Control 2 Index: 1Eh Bit 7 Bit 6 IRQ15 Is RI Out RW:0 Register Per: chip Register Compatibility Type: ext. Bit 5 Bit 4 Drive LED Enable RW:0 Bit 3 5V Core RW:0 Bit 2 Suspend RW:0 Bit 1 Low-Power Dynamic Mode RW:1 Bit 0 Bypass Frequency Synthesizer RW:0 DMA System (CL-PD6722) RW:0 Three-State Bit 7 RW:0 Register Name: Chip Information Index: 1Fh Bit 7 Bit 6 Bit 5 Cirrus Logic Host-Adapter Identification R:11 a b Register Per: chip Register Compatibility Type: ext. Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Reserved R:n c Dual/Single Socket* R:n a CL-PD67XX Revision Level R:nnnn b The value for CL-PD6710 is `0', and the value for CL-PD6722 is `1'. This read-only value depends on the revision level of the CL-PD67XX chip. c The value for CL-PD6722 is `1'. Register Name: ATA Control Index: 26h Bit 7 Bit 6 A25/CSEL RW:0 Register Per: socket Register Compatibility Type: ext. Bit 5 A23/VU RW:0 Bit 4 A22 RW:0 Bit 3 A21 RW:0 Bit 2 Scratchpad Bit RW:0 Bit 1 Speaker Is LED Input RW:0 Bit 0 ATA Mode RW:0 A24/M/S* RW:0 Register Name: Extended Index (CL-PD6722 only) Index: 2Eh Bit 7 Bit 6 Bit 5 Bit 4 Register Per: socket Register Compatibility Type: ext. Bit 3 Bit 2 Bit 1 Bit 0 Extended Index RW:00000000 Register Name: Extended Data (CL-PD6722 only) Index: 2Fh Bit 7 Bit 6 Bit 5 Bit 4 Register Per: socket Register Compatibility Type: ext. Bit 3 Bit 2 Bit 1 Bit 0 Extended Data May 1997 PRELIMINARY DATA SHEET v3.1 121 CL-PD6710/'22 ISA-to-PC-Card Host Adapters Register Name: Data Mask 0 (CL-PD6722 only) Index: 2Fh Bit 7 Bit 6 Extended Index: 01h Bit 5 Bit 4 Bit 3 Bit 2 Register Per: socket Register Compatibility Type: ext. Bit 1 Bit 0 Data Mask Select 0 RW:00000000 Register Name: Data Mask 1 (CL-PD6722 only) Index: 2Fh Bit 7 Bit 6 Extended Index: 02h Bit 5 Bit 4 Bit 3 Bit 2 Register Per: socket Register Compatibility Type: ext. Bit 1 Bit 0 Data Mask Select 1 RW:00000000 Register Name: Extension Control 1 (CL-PD6722 only) Index: 2Fh Bit 7 Bit 6 Bit 5 DMA Enable RW:00 Extended Index: 03h Bit 4 Reserved RW:00 Register Per: socket Register Compatibility Type: ext. Bit 2 LED Activity Enable RW:0 Bit 3 Bit 1 Auto Power Clear Disable RW:0 Bit 0 VCC Power Lock RW:0 Pull-up Control RW:0 Register Name: Maximum DMA Acknowledge Delay (CL-PD6722 only) Index: 2Fh Bit 7 Bit 6 Bit 5 Register Per: socket Register Compatibility Type: ext. Extended Index: 04h Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Maximum DMA Acknowledge Delay RW:00000000 Register Name: External Data (CL-PD6722 only) Index: 2Fh Bit 7 Bit 6 Extended Index: 0Ah Bit 5 Bit 4 Bit 3 Bit 2 Register Per: socket Register Compatibility Type: ext. Bit 1 Bit 0 External Data External Data External Data External Data External Data External Data External Data External Data 7 6 5 4 3 2 1 0 RW:0 RW:0 RW:0 RW:0 RW:0 RW:0 RW:0 RW:0 122 PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters Register Name: External Data (CL-PD6722 only) Index: 6Fh Bit 7 Bit 6 Extended Index: 0Ah Bit 5 Bit 4 Bit 3 Bit 2 Register Per: socket Register Compatibility Type: ext. Bit 1 Bit 0 External Data External Data External Data External Data 7 6 5 4 RW:0 RW:0 RW:0 RW:0 External Data External Data External Data External Data 3 or 2 or 1 or 0 or B_VS2 Input B_VS1 Input A_VS2 Input A_VS1 Input R:0 R:0 R:0 R:0 Register Name: Extension Control 2 (CL-PD6722 only) Index: 2Fh and 6Fh Bit 7 Bit 6 Bit 5 Reserved RW:00 Extended Index: 0Bh Bit 4 GPSTB on IOW* RW:0 Register Per: socket Register Compatibility Type: ext. Bit 2 Totem-pole GPSTB RW:0 Bit 3 GPSTB on IOR* RW:0 Bit 1 Reserved RW:00 Bit 0 Active-high GPSTB RW:0 B.6 Timing Registers Register Name: Setup Timing 0-1 Index: 3Ah, 3Dh Bit 7 Bit 6 Bit 5 Setup Prescalar Select RW:00 Register Per: socket Register Compatibility Type: 365 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Setup Multiplier Value RW:000001 Register Name: Command Timing 0-1 Index: 3Bh, 3Eh Bit 7 Bit 6 Bit 5 Command Prescalar Select RW:00 a Register Per: socket Register Compatibility Type: 365 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Command Multiplier Value RW:000110/001111 a Timing set 0 (index 3Bh) resets to 06h for socket timing equal to standard AT-bus-based cycle times. Timing set 1 (3Eh) resets to 0Fh for socket timings equal to standard AT-bus timing using one additional wait state. Register Name: Recovery Timing 0-1 Index: 3Ch, 3Fh Bit 7 Bit 6 Bit 5 Recovery Prescalar Select RW:00 Register Per: socket Register Compatibility Type: 365 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Recovery Multiplier Value RW:000011 May 1997 PRELIMINARY DATA SHEET v3.1 123 CL-PD6710/'22 ISA-to-PC-Card Host Adapters INDEX Numerics +5V 20 5V Core bit 61 Card I/O Map 0-1 Address Offset Low registers 52 Card IRQ Select bits 42 Card Is I/O bit 42 Card Memory Map 0-4 Offset Address High registers 56 Card Memory Map 0-4 Offset Address Low registers 56 Card Power On bit 39 Card Reset* bit 43 Card Status Change register 44 Card Timer Select bits 55 -CD[2:1] 18 -CE[2:1] 18 Chip Identification bits. See Cirrus Logic Host-Adapter Identification bits Chip Information register 63 Chip Revision register 37 Cirrus Logic Host-Adapter Identification bits 63 CLK 15 CL-PD67XX Revision Level bits 63 Command Multiplier Value bits 73 Command Prescalar Select bits 73 Command Timing 0-1 registers 73 conventions bit naming 32 general 7 numbers and units 7 pin naming 11 register headings 32 CORE_VDD 20 A A[25:0] 16 A_ pin name 16 See also the pin name A21 bit 64 A22 bit 64 A23/VU bit 64 A24/M/S* bit 64 A25/CSEL bit 64 AC specifications 91-109 Active-high GPSTB bit 71 AEN 13 ALE 12 ATA Control register 64 ATA mode description 75 overview 29 pin cross reference 75 ATA Mode bit 64 Auto Power Clear Disable bit 66 Auto-Power bit 41 Auto-Size I/O Window 0 bit 49 Auto-Size I/O Window 1 bit 49 B B_ pin name 16 See also the pin name Battery Dead Or Status Change bit 44 Battery Dead Or Status Change Enable bit 45 Battery Voltage Detect bits 38 Battery Warning Change bit 44 Battery Warning Enable bit 45 BBS (bulletin board system) 114 bus sizing 29 BVD1/-STSCHG/-RI 19 BVD2/-SPKR/-LED 18 Bypass Frequency Synthesizer bit 61 D D[15:0] 16 Data Mask 0-1 register 66 Data Mask Select 0-1 bits 66 Data register 36 DC specifications 87-90 Device Index bit 33 DMA Control register. See Extension Control 1 register DMA Enable bits 67 DMA mode configuring 84-86 description 83 overview 30 DMA Read Cycle timing 105 DMA Request timing 109 DMA System bit 62 DMA Write Cycle timing 107 Drive LED Enable bit 61 Dual/Single Socket* bit 63 C C_SEL 15 Card Detect bits 38 Card Detect Change bit 44 Card Detect Enable bit 45 Card Enable bit 41 Card I/O Map 0-1 Address Offset High registers 52 124 INDEX PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters E Empty Write FIFO bit 60 Enable Manage Int bit 42 End Address 15:8 bits 51 19:12 bits 55 23:20 bits 55 7:0 bits 51 Extended Data register 65 Extended Index register 65 Extended Register Index bits 65 Extension Control 1 register 66 Extension Control 2 register 71 External Data bits 69-70 External Data register 69 F FIFO Control register 60 form factor 1-2, 110, 112 functional blocks 25 G general-purpose strobe control 77 description 77-80 example implementations 79 overview 26 suspend mode 80 General-Purpose Strobe timing 96 GND 20 GPSTB 19 GPSTB on IOR* bit 71 GPSTB on IOW* bit 71 Interface Status register 38 Interrupt and General Control register 42 interrupts 25 -INTR 14 IOCHRDY 13 IOCS16* 13 -IOIS16 17 IOR* 12 -IORD 17 IOW* 12 -IOWR 17 -IREQ 17 IRQ Level bits. See Card IRQ Select bits IRQ[14, 11, 7, 5:3] 13 IRQ10 13 IRQ10 as DRQ, description 26 IRQ12 as LED_OUT*, description 26 IRQ12/LED_OUT* 14 IRQ15 as RI_OUT*, description 26 IRQ15 Is RI Out bit 62 IRQ15/RI_OUT* 14 IRQ9 13 IRQ9 as DACK*, description 26 ISA bus interface pins 12-15 ISA bus timing 92 ISA_VCC 15 L LA[23:17] 12 -LED 18 LED Activity Enable bit 66 LED_OUT* 14 Low-Power Dynamic mode 27 Low-Power Dynamic Mode bit 61 H host access to registers 30 M Management Interrupt Configuration register 45 Management IRQ Select bits 46 Mapping Enable register 47 MEMCS16 Full Decode bit 47 MEMCS16* 13 Memory Map 0 Enable bit 47 1 Enable bit 47 2 Enable bit 47 3 Enable bit 47 4 Enable bit 47 MEMR* 12 MEMW* 12 Misc Control 1 register 58 Misc Control 2 register 61 I I/O Map 0 Enable bit 48 I/O Map 0-1 Start Address High registers 50 I/O Map 1 Enable bit 48 I/O Window 0 Size bit 49 I/O Window 1 Size bit 49 I/O Window Control register 49 IDE 75 Index register 33 -INPACK 17 Inpack Enable bit 59 Input Clock specification 97 Interface ID bits 37 May 1997 PRELIMINARY DATA SHEET v3.1 INDEX 125 CL-PD6710/'22 ISA-to-PC-Card Host Adapters N Normal Byte Read/Write timing 103 O Odd Byte timing 104 -OE 16 Offset Address 15:8 bits 52 19:12 bits 56 25:20 bits 57 7:1 bits 52 ordering information 113 REFRESH* 12 -REG 16 REG Setting bit 57 Register Index bits 33 register summary tables 116-123 RESET 18 Reset timing 94 Revision bits 37 -RI 19 RI_OUT* 14 Ring Indicate Enable bit 43 S SA[16:0] 12 SBHE* 12 SD[15:0] 12 Setup Multiplier Value bits 72 Setup Prescalar Select bit 72 Setup Timing 0-1 registers 72 SLOT_VCC. See SOCKET_VCC socket accessing specific registers 33 register per 32 Socket Index bit 33 socket interface pins 16-19 socket power features 28 SOCKET_VCC 19 Speaker Enable bit 59 Speaker Is LED Input bit 64 -SPKR 18 SPKR_OUT*/C_SEL 15 Start Address 15:8 bits 50 19:12 bits 53 23:20 bits 54 7:0 bits 50 -STSCHG 19 Super-Suspend mode, description 27 Suspend bit 61 Suspend mode, description 27 System I/O Map 0-1 End Address High registers 51 End Address Low registers 51 Start Address Low registers 50 System Interrupt timing 95 System Memory Map 0-4 End Address High registers 55 End Address Low registers 54 Start Address High registers 54 Start Address Low registers 53 P package 144-pin VQFP 110 208-pin PQFP 111 208-pin VQFP 112 PC Card basics 22 bus timing calculations 98 Read/Write timing 102 socket timing 99 timing 29 PCMCIA 22 pin descriptions 8, 20 pin diagram 144-pin VQFP 9 208-pin PQFP or VQFP 10 pin usage summary 21 power consumption 28 Power Control register 40 power management 27 power-on configuration 21 setup 31 Pull-up Control bit 67 Pulse Management Interrupt bit 58 Pulse Mode Interrupt timing 95 Pulse System IRQ bit 59 PWRGOOD 12 R RDY/-IREQ 17 Ready Change bit 44 Ready Enable bit 45 Ready/Busy* bit 39 Recovery Multiplier Value bits 74 Recovery Prescalar Select bits 74 Recovery Timing 0-1 registers 74 126 INDEX PRELIMINARY DATA SHEET v3.1 May 1997 CL-PD6710/'22 ISA-to-PC-Card Host Adapters T Three-State Bit 7 bit 62 timing DMA Read Cycle 105 DMA request 109 DMA Write Cycle 107 General-Purpose Strobe 96 ISA bus 92 Normal Byte Read/Write 103 Odd Byte 104 PC Card bus 98 PC Card Read/Write 102 PC Card socket 99 Pulse Mode Interrupt 95 Reset 94 System Interrupt 95 Word I/O Read/Write 100 Timing Register Select 0 bit 49 Timing Register Select 1 bit 50 Totem-pole GPSTB bit 71 VCC Power Lock bit 66 -VCC_3 20 -VCC_5 20 VDD. See CORE_VDD voltage sense 81-82 overview 27 VPP Valid bit 39 VPP_PGM 20 -VPP_VALID 15 VPP_VCC 20 VPP1 Power bits 41 W -WAIT 18 -WE 17 Window Data Size bit 54 windowing 22 Word I/O Read/Write timing 100 WP/-IOIS16 17 write FIFO 29 Write Protect bit 38, 57 V VCC 3.3V bit 58 VCC Power bit 41 Z ZWS* 14 May 1997 PRELIMINARY DATA SHEET v3.1 INDEX 127 CL-PD6710/'22 Preliminary Data Sheet v3.1 Direct Sales Offices Domestic N. CALIFORNIA Fremont TEL: 510/623-8300 FAX: 510/252-6020 S. CALIFORNIA Westlake Village TEL: 805/371-5860 FAX: 805/371-5861 NORTHWESTERN AREA Portland, OR TEL: 503/620-5547 FAX: 503/620-5665 SOUTH CENTRAL AREA Austin, TX TEL: 512/255-0080 FAX: 512/255-0733 Irving, TX TEL: 972/252-6698 FAX: 972/252-5681 Houston, TX TEL: 281/257-2525 FAX: 281/257-2555 NORTHEASTERN AREA Andover, MA TEL: 508/474-9300 FAX: 508/474-9149 SOUTHEASTERN AREA Raleigh, NC TEL: 919/859-5210 FAX: 919/859-5334 Boca Raton, FL TEL: 407/241-2364 FAX: 407/241-7990 International CHINA Beijing TEL: 86/10-642-807-83-5 FAX: 86/19-672-807-86 FRANCE Paris TEL: 33/1-48-12-2812 FAX: 33/1-48-12-2810 GERMANY Herrsching TEL: 49/81-52-92460 FAX: 49/81-52-924699 HONG KONG Tsimshatsui TEL: 852/2376-0801 FAX: 852/2375-1202 ITALY Milan TEL: 39/2-3360-5458 FAX: 39/2-3360-5426 JAPAN Tokyo TEL: 81/3-3340-9111 FAX: 81/3-3340-9120 KOREA Seoul TEL: 82/2-565-8561 FAX: 82/2-565-8565 SINGAPORE TEL: 65/743-4111 FAX: 65/742-4111 TAIWAN Taipei TEL: 886/2-718-4533 FAX: 886/2-718-4526 UNITED KINGDOM London, England TEL: 44/1727-872424 FAX: 44/1727-875919 The Company Headquartered in Fremont, California, Cirrus Logic is a leading manufacturer of advanced integrated circuits for desktop and portable computing, telecommunications, and consumer electronics. The Company applies its systemlevel expertise in analog and digital design to innovate highly integrated, software-rich solutions. Cirrus Logic has developed a broad portfolio of products and technologies for applications spanning multimedia, graphics, communications, system logic, mass storage, and data acquisition. The Cirrus Logic formula combines innovative architectures in silicon with system design expertise. We deliver complete solutions -- chips, software, evaluation boards, and manufacturing kits -- on-time, to help you win in the marketplace. Cirrus Logic's manufacturing strategy ensures maximum product quality, availability, and value for our customers. Talk to our systems and applications specialists; see how you can benefit from a new kind of semiconductor company. Copyright (c) 1997 Cirrus Logic Inc. All rights reserved. Preliminary product information describes products that are in production, but for which full characterization data is not yet available. Cirrus Logic Inc. has made best efforts to ensure that the information contained in this document is accurate and reliable. However, the information is subject to change without notice. No responsibility is assumed by Cirrus Logic Inc. for the use of this information, nor for infringements of patents or other rights of third parties. This document is the property of Cirrus Logic Inc. and implies no license under patents, copyrights, or trade secrets. No part of this publication may be copied, reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photographic, or otherwise, or used as the basis for manufacture or sale of any items without the prior written consent of Cirrus Logic Inc. Cirrus, Cirrus Logic, AccuPak, Clear3D, DirectVPM, DIVA, FastPath, FasText, FeatureChips, FilterJet, Get into it, Good Data, Laguna, Laguna3D, MediaDAC, MotionVideo, RSA, SimulSCAN, S/LA, SMASH, SofTarget, Systems in Silicon, TextureJet, TVTap, UXART, Video Port Manager, VisualMedia, VPM, V-Port, Voyager, WavePort, and WebSet are trademarks of Cirrus Logic Inc., which may be registered in some jurisdictions. Other trademarks in this document belong to their respective companies. CRUS and Cirrus Logic International, Ltd. are trade names of Cirrus Logic Inc. Cirrus Logic Inc. 3100 West Warren Ave., Fremont, CA 94538 TEL: 510/623-8300 FAX: 510/252-6020 Publications Ordering: 800/359-6414 (USA) or 510/249-4200 World Wide Web: http://www.cirrus.com 346710-005 |
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