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AL440B Data Sheets
Version 1.4
AVERLOGIC TECHNOLOGIES, CORP. TEL: 886 227915050 e-mail: sales@averlogic.com.tw URL: www.averlogic.com.tw AVERLOGIC TECHNOLOGIES, INC. TEL: 1 408 361-0400 e-mail: sales@averlogic.com URL: www.averlogic.com February 21, 2003
AL440B
Amendments
11-28-01 03-11-02 05-14-02 11-11-02 12-30-02 02-20-03 AL440B version 1.0 release data sheets. Version 1.1, remove cascade information Version 1.2, revised I2C diagram Version 1.3, Revised Electronically Characteristic with 5V signals input tolerance Version 1.4, Revised "TEST" and "/PLTY" pin description Company Contact Information updated
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AL440B 4MBits FIFO Field Memory
Contents:
1.0 Description _________________________________________________________________ 4 2.0 Features____________________________________________________________________ 4 3.0 Applications_________________________________________________________________ 4 4.0 Ordering Information _________________________________________________________ 4 5.0 Pin-out Diagram _____________________________________________________________ 5 6.0 Block Diagram ______________________________________________________________ 5 7.0 Pin Definition and Description _________________________________________________ 6 8.0 Register Definition ___________________________________________________________ 8
8.1 Register Set ____________________________________________________________________________ 8
9.0 Multiple Devices Bus Expansion ________________________________________________ 9 10.0 Serial Bus Interface _________________________________________________________ 9 11.0 Memory Operation _________________________________________________________ 11
11.1 Power-On-Reset & Initialization __________________________________________________________ 11 11.2 WRST, RRST Reset Operation ___________________________________________________________ 11 11.3 Control Signals Polarity Select ___________________________________________________________ 11 11.4 FIFO Write Operation __________________________________________________________________ 12 11.5 FIFO Read Operation___________________________________________________________________ 12 11.6 IRDY, ORDY Flags____________________________________________________________________ 13 11.7 Window Write Register Programming _____________________________________________________ 14 11.8 Window Read Register Programming ______________________________________________________ 17
12.0 Electrical Characteristics ____________________________________________________ 20
12.1 Absolute Maximum Ratings _____________________________________________________________ 20 12.2 Recommended Operating Conditions ______________________________________________________ 20 12.3 DC Characteristics _____________________________________________________________________ 20 12.4 AC Characteristics _____________________________________________________________________ 21
13.0 Timing Diagrams __________________________________________________________ 23 14.0 Mechanical Drawing - 44 PIN PLASTIC TSOP (II) ______________________________ 31 15.0 Application Notes __________________________________________________________ 33
15.1 Chip Global Reset Recommend Circuit_____________________________________________________ 33 15.2 The AL440B Reference Schematic ________________________________________________________ 33
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1.0 Description
The AL440B 4Mbits (512k x 8-bit) FIFO memory provides completely independent 8bit input and output ports that can operate at a maximum speed of 80 MHz. The built-in address and pointer control circuits provide a very easy-to-use memory interface that greatly reduces design time and effort. Manufactured using state-of-the-art embedded high density memory cell array, the AL440B uses high performance process technologies with extended controller functions (write mask, read skip.. etc.), allowing easy operation of non-linearity and regional read/write FIFO for PIP, Digital TV, security system and video camera applications. The status flags can be used to indicate Fullness/Emptiness of the FIFO. Expanding AL440B data bus width is possible by using multiple AL440B chips in parallel. To get better design flexibility, the polarities of the AL440B control signals are selectable. The read and write control signals, such as Read/Write Enable, Input/Output Enable.., can be either active low or high by pulling /PLRTY signal to high or low respectively. In AL440B, Window data write/read and data mirroring functions can offer better control assistance in the application design. The built-in registers set can be easily programmed via serial bus (I2C like control bus) to perform various useful functions such as multi-freeze, P-in-P in the digital TV, VCR, and video camera application. Available as a 44-pin TSOP (II), the small footprint allows product designers to keep real estate to a minimum.
2.0 Features
* * * * * * * * * * * 4Mbits (512k x 8 bits) organization FIFO Independent 8bit read/write port operations (different read/write data rates acceptable) Maximum Read/write cycle time: 80Mhz and 40Mhz (2 speed grades) Input Enable (write mask) / Output Enable (data skipping) control Window read/write with Mirroring capable Selectable control signal polarity Input Ready / Output Ready flags Self refresh 5V signals input tolerance 3.3V 10% power supply Standard 44-pin TSOP (II) package
3.0 Applications
* * * * * * * * * * Multimedia systems Video capture or editing systems for NTSC/PAL or SVGA resolution Security systems Scan rate converters PIP (Picture-In-Picture) video display TBC (Time Base Correction) Frame synchronizer Digital video camera Hard disk cache memory Buffer for communication systems
* 80MHz High-Speed version * DTV/HDTV video stream buffer
4.0 Ordering Information
The AL440B has two speed grades, AL440B-24 and AL440B-12, which can operate at frequencies of 40MHz and 80MHz respectively. Both speed grades are powered by 3.3V and are available in a 44-pin standard TSOP-II package.
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Part number AL440B-24 (40MHz) AL440B-12 (80MHz)
Package 44-pin plastic TSOP(II) 44-pin plastic TSOP(II)
Power Supply +3.3V10% +3.3V10%
Status Sample Dec., 2001 Sample Dec.., 2001
5.0 Pin-out Diagram
The AL440B pin-out diagram is following.
SCL
24 21
44
43
42
41
40
39
38
37
36
35
OE
34
33
32
31
30
29
28
27
26
25
AVERLOGIC AL440B-XX XXXXX XXXX
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
Speed Lot Number Date Code
19
20
AVDD
WE
WCK
DI0
DI1
DI2
DI3
DI4
DI5
DI6
DI7
GND
TEST
WRST
/PLRTY
AL440B-12/24 TSOP (II) pinout diagram (Top view)
6.0 Block Diagram
DI[7:0]
Input Buffer
Write Data Register
Internal Bus
512kx8 memory cell array
Internal Bus
Read Data Register
AGND
VDD
IRDY
IE
NC
NC
NC
/SDAEN
23 22
GND
/RESET
ORDY
RRST
GND
RCK
VDD
VDD
NC
SDA
DO0
DO1
DO2
DO3
DO4
DO5
DO6
DO7
RE
Output Buffer
DO[7:0]
IRDY WCK WRST IE WE /SDAEN SCL & SDA Control Registers Iutput Control
Memory Control Output Control Timing Generator & Arbiter
Address Bus
Control Bus
ORDY RCK RRST OE RE
To all Modules
Refresh Counter
To all Modules
Timing & Logic Control
/PLRTY /RESET
AL440B Block Diagram
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The internal structure of the AL440B consists of an Input/Output buffers, Write Data Registers, Read Data Registers and main 512k x8 memory cell array and the state-of-the-art logic design that takes care of addressing and controlling the read/write data.
7.0 Pin Definition and Description
The pin definitions and descriptions are as follows:
Write Bus Signals
Pin name Pin number I/O type Description
DI[7:0]
9,8,7,6,4,3,2, 1 10 11
I
WE IE
I I
WCK WRST IRDY
13 14 15
I I O
The DI pins input 8bits of data. Data input is synchronized with the WCK clock. Data is acquired at the rising edge of WCK clock. WE is an input signal that controls the 8bit input data write and write pointer operation. IE is an input signal that controls the enabling/ disabling of the 8bit data input pins. The internal write address pointer is always incremented at rising edge of WCK by enabling WE regardless of the IE level. WCK is the write clock input pin. The write data input is synchronized with this clock. The WRST is a reset input signal that resets the write address pointer to 0. IRDY is a status output flag that reports the FIFO space availability.
*Note: For the polarity definition of all write control signals (WE, IE, WRST and IRDY), please refer to /PLRTY pin definition and "Memory Operation" section for details.
Read Bus Signals
Pin name DO[7:0] Pin number I/O Description type 36,37,38,39, O The DO pins output 8bit of data. Data output is 41,42,43,44 synchronized with the RCK clock. Data is output at the rising edge of the RCK clock. 35 I RE is an input signal that controls the 8bit output data read and read pointer operation. 34 I OE is an input signal that controls the enabling/ disabling of the 8bit data output pins. The internal read address pointer is always incremented at rising edge of RCK by enabling RE regardless of the OE level. 32 I RCK is the read clock input pin. The read data
RE OE
RCK
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RRST ORDY
31 30
I O
output is synchronized with this clock. The RRST is a reset input signal that resets the read address pointer to 0. ORDY is a status output flag that reports the FIFO data availability.
*Note: For the polarity definition of all read control signals (RE, OE, RRST and ORDY), please refer to /PLRTY pin definition and "Memory Operation" section for details.
Serial Port Bus Signals
Pin name SDA Description Pin number I/O type 25 I/O SDA carries the serial bus read/write data bits. The SDA data bit is valid when the SCL is high after start up sequence. 24 I SCL supplies the serial bus clock signal to FIFO. The serial data bit is valid when the SCL is high after start up sequence. 23 I /SDAEN controls the enabling/disabling of serial bus interface. When /SDAEN is high, the serial interface is disabled and SDA pin is high impedance. When /SDAEN is low, the serial interface is enabled and data can be written to or read from the FIFO registers.
SCL
/SDAEN
Power/Ground Signals
Pin name VDD GND AVDD AGND Description Pin number I/O type 5, 29, 40 - 3.3V 10%. 12, 26, 33 - Ground. 18 - Dedicated power pin for the internal oscillator. 3.3V 10%. 22 - Dedicated ground pin for the internal oscillator.
Miscellaneous Signals
Pin name /RESET Pin number I/O Description type 27 I The global reset pin /RESET will automatically initialize chip logic. For the recommended circuit for the global reset signal, please refer to the Application Notes.
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/PLRTY
16
I
TEST NC
17 19,20,21,28
I -
Select active polarity of the control signals including WE, RE, WRST, RRST, IE, OE, IRDY and ORDY totally 8 signals /PLRTY = VDD, active low. /PLRTY = GND, active high. Note: During memory operation, the pin must be permanently connected to VDD or GND. The pin has internal Pull-High as default active low, if /PLRTY has no connection. If /PLRTY level is changed during memory operation, memory data is not guaranteed. For testing purpose only. Connect to Ground. No connect or connect to Ground
8.0 Register Definition
There are some built-in registers in the AL440B that allows performing some optional functions such as window read/write access. These registers can be programmed via serial bus (SDA, SCL and /SDAEN). The serial bus interface protocol is illustrated in "Serial Bus Interface" chapter. The serial bus control software code or tool is available at Averlogic Technologies, Inc. upon request.
8.1 Register Set
Address 00h 02h 03h 04h 05h 06h 07h 08h 09h 0Ah Register COMPANYID WSTART_L WSTART_H WXSIZE_L WXSIZE_H WSTRIDE_L WSTRIDE_H WYSIZE_L WYSIZE_H WWCTRL R/W R R/W R/W R/W R/W R/W R/W R/W R/W R/W Description Company ID (46h) Window write starting address (Low byte) Window write starting address (High byte) Window write horizontal size (Low byte) Window write horizontal size (High byte) Window write strike size (Low byte) 2's complement (for Y-mirror) Window write strike size (High byte) 2's complement (for Y-mirror) Window write vertical size (Low byte) Window write vertical size (High byte) Window write control register [7]: enable window write function [6]: X mirror [5]: freeze Window read starting address (Low byte) Window read starting address (High byte) Window read horizontal size (Low byte) Window read horizontal size (High byte) Window read strike size (Low byte) Window read strike size (High byte)
8
0Bh 0Ch 0Dh 0Eh 0Fh 10h
RSTART_L RSTART_H RXSIZE_L RXSIZE_H RSTRIDE_L RSTRIDE_H
R/W R/W R/W R/W R/W R/W
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11h 12h 13h
RYSIZE_L RYSIZE_H RWCTRL
R/W Window read vertical size (Low byte) R/W Window read vertical size (High byte) R/W Window read control register [7]: enable window read function
9.0 Multiple Devices Bus Expansion
The AL440B FIFO memory can be applied to very wide range of media applications. A parallel connect of multiple AL440B FIFOs provides FIFO bus width.
WRST DI[7:0] IE IRDY WE WCK
RRST DO[7:0] OE ORDY RE RCK
16-bit Input Bus Width
16-bit Output Bus Width
WRST DI[7:0] IE IRDY WE WCK
RRST DO[7:0] OE ORDY RE RCK
AL440B Data Bus Width Expansion
10.0 Serial Bus Interface
The serial bus interface consists of the SCL (serial clock), SDA (serial data) and /SDAEN (serial interface enable) signals. There are pulling up circuit internally for both SCL and SDA pins. When /SDAEN is high, the serial bus interface is disabled and both SCL and SDA pins are pulled high. When /SDAEN is low, the serial bus interface is enabled and data can be written into or read from the AL440B register set. For both read and write, each byte is transferred MSB first and LSB last, and the SDA data bit is valid when the SCL is pulled high. The serial bus control sample C code is available in Averlogic Technologies, Inc. upon request. The read/write command format is as follows:
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Write:
Read:
Following are the details: : Start signal SCL SDA High High High Low The Start signal is HIGH to LOW transition on the SDA line when SCL is HIGH. : Write Slave Address: 0h : Read Slave Address: 1h : Value of the AL440B register index. : Acknowledge stage The acknowledge-related clock pulse is generated by the host (master). The host releases the SDA line (HIGH) for the AL440B (slave) to pull down the SDA line during the acknowledge clock pulse. : Not Acknowledged stage The acknowledge-related clock pulse is generated by the host (master). The host releases the SDA line (HIGH) during the acknowledge clock pulse, but the AL440B does not pull it down during this stage. : Data byte write to or read from the register index. In read operation, the host must release the SDA line (high) before the first clock pulse is transmitted to the AL440B.
: Stop signal SCL SDA High Low High High The Stop signal is LOW to HIGH transition on the SDA line when SCL is HIGH.
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Suppose data F0h is to be written to register 0Fh using write slave address 0h, the timing is as follows:
Start Slave addr = 0h Ack Index = 0Fh Ack Data = F0h Ack Stop
SDA SCL
AL440B Serial bus Write timing
Suppose data is to be read from register 05h using read slave address 1h, the timing is as follows:
Start Ack Stop Read slave addr = 1h NAck Start Ack Data read cycle Stop
Slave addr = 0h
Index = 05h
Ack
SDA SCL
AL440B Serial bus read timing
11.0 Memory Operation
11.1 Power-On-Reset & Initialization
During the system power on, a 200s negative pulse on the /RESET pin is required and will automatically initialize chip logic. Apply a valid reset pulse to WRST and RRST after power-onreset to reset read/write address pointer to zero.
11.2 WRST, RRST Reset Operation
The reset signal can be given at any time regardless of the WE, RE and OE status, however, they still need to meet the setup time and hold time requirements with reference to the clock input. When the reset signal is provided during disabled cycles, the reset operation is not executed until cycles are enabled again.
11.3 Control Signals Polarity Select
The AL440B provides the option for operating polarity on controlling signals. With this feature the application design can benefit by matching up the operation polarity between AL440B and an existing interfacing devices without additional glue logic. The operating polarity of control signals WE, RE, WRST, RRST, IE, OE, IRDY and ORDY are controlled by /PLRTY signal. When
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/PLRTY is pulled high all 8 signals will be active low. When /PLRTY is pulled low all 8 signals will be active high.
11.4 FIFO Write Operation
In the FIFO write operation, 8 bits of write data are input in synchronization with the WCK clock. The FIFO write operation is determined by WRST, WE, IE and WCK signals and the combination of these signals could produce different write result. The /PLRTY signal determines the activated polarity of these control signals. The following tables describe the WRITE functions under different operating polarities.
/PLRTY = VDD
WRST L H H WE L L IE L H WCK Function Write reset. The write pointer is reset to zero. Normal Write operation. Write address pointer increases, but no new data will be written to memory. Old data is retained in memory. (Write mask function) Write operation stopped. Write address pointer is also stopped.
H
H
-
/PLRTY = GND
WRST H L L WE H H IE H L WCK Function Write reset. The write pointer is reset to zero. Normal Write operation. Write address pointer increases, but no new data will be written to memory. Old data is retained in memory. (Write mask function) Write operation stopped. Write address pointer is also stopped.
L
L
-
11.5 FIFO Read Operation
In the FIFO read operation, 8 bits of read data are available in synchronization with the RCK clock. The access time is stipulated from the rising edge of the RCK clock. The FIFO read operation is determined by RRST, RE, OE and RCK signals, so the combination of these signals could produce varying read results. The /PLRTY signal could decide the activated polarity of these control signals. The following tables describe the READ functions under different operating polarities.
/PLRTY = VDD
RRST L L RE L L OE L H RCK Function Read reset. The read pointer is reset to zero. Data in the address 0 is output. Read reset. The read pointer is reset to zero. Output is high impedance.
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L
H
L

L
H
H
H H H H
L L H H
L H L H
Read address pointer is stopped. Output data is held. Read address pointer will be reset to zero and data in the address 0 is output after RE goes low. Read address pointer is stopped. Output data is held. Read address pointer will be reset to zero and output is high impedance after RE goes low. Normal Read operation. Read address pointer increases. Output is high impedance. (Data skipping function) Read address pointer is stopped. Output data is held. Read operation stopped. Read address pointer is stopped. Output is high impedance.
/PLRTY = GND
RRST H H H RE H H L OE H L H RCK Function Read reset. The read pointer is reset to zero. Data in the address 0 is output. Read reset. The read pointer is reset to zero. Output is high impedance. Read address pointer is stopped. Output data is held. Read address pointer will be reset to zero and data in the address 0 is output after RE goes low. Read address pointer is stopped. Output data is held. Read address pointer will be reset to zero and output is high impedance after RE goes low. Normal Read operation. Read address pointer increases. Output is high impedance. (Data skipping function) Read address pointer is stopped. Output data is held. Read operation stopped. Read address pointer is stopped. Output is high impedance.
H
L
L
L L L L
H H L L
H L H L
When the new data is read, the read address should be between 192 and 524,287 cycles after the write address pointer, otherwise the output for new data is not guarantee.
11.6 IRDY, ORDY Flags
The IRDY, ORDY flags indicate the status of FIFO. The IRDY signal reports whether or not there is space available for writing new data to the FIFO. An ORDY signal reports whether or not there is valid new data available at output. The IRDY and ORDY signals only report the status of the address pointer; they will not stop or affect the read/write operations. The following tables describe the IRDY/ORDY functions under different operating polarities.
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/PLRTY = VDD
Signal IRDY ORDY State H L H L Function No more free space is available for new input data Memory space is available for new input data. No new data is available in FIFO memory. New data are available in the FIFO memory.
/PLRTY = GND
Signal IRDY ORDY State H L H L Function Memory space is available for new input data. No more free space is available for new input data New data are available in the FIFO memory. No new data is available in FIFO memory.
11.7 Window Write Register Programming
Window data read/write is supported in the AL440B to benefit the designing effort for applications such as PIP display. The window mode is enabled by driving low on /SDAEN signal. A serial bus can program built-in registers to set up coordinates of the window and the settings take effect following by next read/write reset pulse. Window mirroring can cooperate with the window mode data access to flip window data in x or y direction. When window-mirroring function is turned on, write data can be stored in reverse sequence. The serial communication interface consists of 3 signals, they are SCL (serial clock), SDA (serial data) and /SDAEN (window mode enable). The serial communication interface is enabled by driving low on /SDAEN signal. The detail operation timing of the serial bus is illustrated in chapter 10. In Window read/write mode, read and/or write may begin at the start address of any of the 8192 blocks. Each block is 64 bytes in length. (8192 blocks x 64 byte = 512 kbytes)
Block number: 8189 8190 8191 64 bytes each block Memory size: 8192 blocks x 64 bytes = 512 kbytes
AL440B Window mode block address
The Window Write related registers are listed as follows: WSTART_L and WSTART_H define the widow data write starting address. Addr Name Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 02h WSTART_L [7] [6] [5] [4] [3] [2] 03h WSTART_H 0 0 0 [12] [11] [10]
0 1 2
Bit1 [1] [9]
Bit0 [0] [8]
14
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WSTART (Write Start address) <= WSTART_H[4:0] & WSTART_L ; WSTART range is from 0 to 8191 (block). WXSIZE_L and WXSIZE_H define the window data write horizontal size. Addr Name Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 04h WXSIZE_L [7] [6] [5] [4] [3] [2] 05h WXSIZE_H 0 0 0 0 0 0 WXSIZE (Write X Size) <= WXSIZE_H[2:0] & WXSIZE_L ; WXSIZE range is from 0 to 1023 (block).
Bit1 [1] [9]
Bit0 [0] [8]
WXSTRIDE_L and WXSTRIDE_H define the window data write horizontal width. Addr Name Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 06h WSTRIDE_L [7] [6] [5] [4] [3] [2] [1] [0] 07h WSTRIDE_H 0 0 0 [12] [11] [10] [9] [8] WSTRIDE (Write Stride) <= WSTRIDE_H[4:0] & WSTRIDE _L ; WSTRIDE range is from -4096 to +4095 (block). When the value of WSTRIDE is negative, it is used to implement Y-Mirror function. WYSIZE_L and WYSIZE_H define the window data write vertical high. Addr Name Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 08h WYSIZE_L [7] [6] [5] [4] [3] [2] 09h WYSIZE_H [15] [14] [13] [12] [11] [10] WYSIZE (Write Y Size) <= WYSIZE_H & WYSIZE_L ; Write Y Size range is from 0 to 65535 (unsign).
Bit1 [1] [9]
Bit0 [0] [8]
WWCTRL is the register that control window data write function enable/disable and the window mirroring write. Addr Name Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 0Ah WWCTRL [7] [6] [5] 0 0 0 0 0 WWCTRL[7] Window Write mode enable 1: enable Window Write mode 0: disable Window Write mode. The memory is operating in standard FIFO write mode. WWCTRL[6] X-mirror function enable 1: enable X-mirror function 0: disable X-mirror function WWCTRL[5] Freeze function enable. This function is as same as hardware "Write Mask" function. When Window Write mode is enabled, software freeze function override hardware Write Mask function. On the other hand, in FIFO mode (WWCTRL[7] = `0'), Register WWCTRL[5] is ignored. 1: enable software Freeze function 0: disable software Freeze function
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A mirroring read/write function can be cooperated with the window-block data access function. By turning on the mirroring read/write function in the window block access mode, write data can be stored in reversed sequence. For some applications like video conferencing, this function can correct reciprocal positioning of a captured object. Please refer the following diagrams which illustrate Window Write operation.
Memory Area WSTART WSTART+1xWSTRIDE WSTART+2xWSTRIDE
Go ba ck
WXSIZE
WSTART+(XSIZE-1) Normal Write Window: WWCTRL[6]: 0 No X-mirror WSTRIDE: postive numer No Y-mirror
WYSIZE
to
WS
TA
RT
Write Window Area WSTART+(WYSIZE-1)x WSTRIDE
AL440B Write Window(1)
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Memory Area WSTART-XSIZE+1 WXSIZE
WSTART WSTART+1xWSTRIDE WSTART+2xWSTRIDE X-mirror Write Window: WWCTRL[6]: 1 X-mirror WSTRIDE: postive numer No Y-mirror
G
o
c ba
k
to
W
ST
T AR
WYSIZE
Write Window Area WSTART+(WYSIZE-1)x WSTRIDE
AL440B-03 Write Window(2)
Memory Area WSTART+(WYSIZE-1)x WSTRIDE Write Window Area
G
X-mirror & Y-mirror Write Window: WWCTRL[6]: 1 X-mirror WSTRIDE: negative numer Y-mirror
o
ba
ck
to
W
ST
AR
WYSIZE
T
WSTART+2xWSTRIDE WSTART+1xWSTRIDE WSTART-XSIZE+1 WXSIZE WSTART
AL440B Write Window(3)
11.8 Window Read Register Programming
The operations of Window Read function are same as Window Write. The operation of Window Read is operated independently from Window Write. The Window Read related registers are listed as follows:
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RSTART_L and RSTART_H define the widow data read starting address. Addr Name Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 0Bh RSTART_L [7] [6] [5] [4] [3] [2] 0Ch RSTART_H 0 0 0 [12] [11] [10] RSTART (Read Start address) <= RSTART_H[4:0] & RSTART_L ; RSTART range is from 0 to 8191 (block). RXSIZE_L and RXSIZE_H define the window data read horizontal size. Addr Name Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 0Dh RXSIZE_L [7] [6] [5] [4] [3] [2] 0Eh RXSIZE_H 0 0 0 0 0 0 RXSIZE (Read X Size) <= RXSIZE_H[2:0] & RXSIZE_L ; WXSIZE range is from 0 to 1023 (block).
Bit1 [1] [9]
Bit0 [0] [8]
Bit1 [1] [9]
Bit0 [0] [8]
RXSTRIDE_L and RXSTRIDE_H define the window data write horizontal width. Addr Name Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 0Fh RSTRIDE_L [7] [6] [5] [4] [3] [2] [1] 10h RSTRIDE_H 0 0 0 0 [11] [10] [9] RSTRIDE (Read Stride) <= RSTRIDE_H[3:0] & RSTRIDE _L ; RSTRIDE range is from 0 to +4095 (block). RYSIZE_L and RYSIZE_H define the window data read vertical high. Addr Name Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 11h RYSIZE_L [7] [6] [5] [4] [3] [2] 12h RYSIZE_H [15] [14] [13] [12] [11] [10] RYSIZE (Read Y Size) <= RYSIZE_H & RYSIZE_L ; Write Y Size range is from 0 to 65535.
Bit0 [0] [8]
Bit1 [1] [9]
Bit0 [0] [8]
RWCTRL is the register that control window data read function enable/disable . Addr Name Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 13h RWCTRL [7] 0 0 0 0 0 0
Bit0 0
RWCTRL[7] Read Write mode enable 1: enable Window Read mode 0: disable Window Read mode. The memory is operating in standard FIFO Read mode. Note: 1. X-mirror and Y-mirror functions are not needed in Window Read mode, so they are not implemented in Window Read operation. 2. There is no "freeze" function in Window Read mode. Please refer to the following illustration as an application example for the explanation of Window read operation.
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Memory Area RSTART RSTART+1xRSTRIDE RSTART+2xRSTRIDE
Go ba ck
RXSIZE
RSTART+ (RXSIZE-1)
RYSIZE
to
RS
TA
RT
Read Window Area RSTART+ (RYSIZE-1)x RSTRIDE
AL440B Read Window
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12.0 Electrical Characteristics
12.1 Absolute Maximum Ratings
Parameter VDD VP IO TAMB Tstg Supply Voltage Pin Voltage Output Current Ambient Op. Temperature Storage temperature Rating -0.3 ~ +3.8 -0.3 ~ +(VDD+0.3) -20 ~ +20 0 ~ +85 -40 ~ +125 Unit V V mA C C
12.2 Recommended Operating Conditions
Parameter VDD VIH VIL Supply Voltage High Level Input Voltage Low Level Input Voltage Min +3.0 0.7 VDD 0 Typ +3.3 Max +3.6 5 0.3 VDD Unit V V V
12.3 DC Characteristics
(VDD = 3.3V, Vss=0V. TAMB = 0 to 70C) Parameter IDD IDDS VOH VOL ILI ILO RL
1. 2.
Min 2.4 -5 -5
Typ 52 14 50
Max 62 VDD +0.4 +5 +5
Unit mA mA V V A A K
Operating Current Standby Current Hi-level Output Voltage Lo-level Output Voltage Input Leakage Current (No pull-up or pull-down) Output Leakage Current (No pull-up or pull-down) Input Pull-up/Pull-down Resistance
Tested with outputs disabled (IOUT = 0) RCLK and WCLK toggle at 20 Mhz and data inputs switch at 10 Mhz.
AL440B
February 20, 2003
20
AL440B
12.4 AC Characteristics
(VDD = 3.3V, Vss=0V, TAMB = 0 to 70C)
Parameter TWC TWPH TWPL TRC TRPH TRPL TAC TOH THZ TLZ TWRS TWRH TRRS TRRH TDS TDH TWES TWEH TWPW TRES TREH TRPW TIES TIEH TIPW TOES TOEH TOPW TTR CI WCK Cycle Time WCK High Pulse Width WCK Low Pulse Width RCK Cycle Time RCK High Pulse Width RCK Low Pulse Width Access Time Output Hold Time Output High-Z Setup Time Output Low-Z Setup Time WRST Setup Time WRST Hold Time RRST Setup Time RRST Hold Time Input Data Setup Time Input Data Hold Time WE Setup Time WE Hold Time WE Pulse Width RE Setup Time RE Hold Time RE Pulse Width IE Setup Time IE Hold Time IE Pulse Width OE Setup Time OE Hold Time OE Pulse Width Transition Time Input Capacitance 25 10 10 25 10 10 6 5 6 8 8 8 8 5 6 6 6 15 6 6 15 6 6 15 8 8 20 3 -
40MHz Min Max 20 -
80MHz Min 12.5 5 5 12.5 5 5 4 4 5 4 5 4 5 4 5 4 5 12 4 5 12 4 5 12 5 5 12 3 7 7 Max 12 -
Unit ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns pF
AL440B
February 20, 2003
21
AL440B
CO
Output Capacitance
-
7
-
7
pF
*
The read address needs to be at least 192 cycles after the write address.
AL440B
February 20, 2003
22
AL440B
13.0 Timing Diagrams
cycle n
Reset cycle (s)
cycle 0
cycle 1
WCK
TTR TWRS TWRH
WRST
TDS
TDH
DI7~0
n-1
n
0
1
/PLRTY=VDD
, WE= "L"
, IE= "L"
Write Cycle Timing (Write Reset)
cycle n TWPL
cycle n+1
Disable cycle (s)
cycle n+2
WCK
TWPH TWC TWES TWEH
WE
TWPW TDS TDH
DI7~0
n-1
n
n+1
n+2
/PLRTY=VDD ,IE="L"
,WRST="H" Write Cycle Timing (Write Enable)
AL440B
February 20, 2003
23
AL440B
cycle n TWPL
cycle n+1
Disable cycle (s)
cycle 0
cycle 1
WCK
TWPH
TWC
TWRS
TWRH
WRST
TWES
TWEH
WE
TWPW TDS TDH
DI7~0
n-1
n
n+1
0
1
/PLRTY=VDD ,IE="L" Write Cycle Timing (WE, WRST)
cycle n TWPL
cycle n+1
cycle n+2
cycle n+3
cycle n+4
WCK
TWPH TWC TIES TIEH
IE
TIPW
TIH
DI7~0
n-1
n
n+1
n+4
/PLRTY=VDD ,WE="L"
,WRST="H" Write Cycle Timing (Input Enable)
AL440B
February 20, 2003
24
AL440B
cycle n TRPL Reset cycle (s) cycle 0 cycle 1
RCK
TRPH
TRRS
TRRH
RRST
TAC TOH
DO7~0
n-1
n
0
0
1
/PLRTY=VDD
,RE= "L"
,OE= "L"
Read Cycle Timing (Read Reset)
cycle n TRPL
cycle n+1
Disable cycle (s)
cycle n+2
RCK
TRPH TRC TRES TREH
RE
TRPW TAC TOH
DO7~0
n-1
n
n+1
n+2
/PLRTY=VDD ,OE="L" ,RRST="H" Read Cycle Timing (Read Enable)
AL440B
February 20, 2003
25
AL440B
cycle n TRPL
cycle n+1
Disable cycle (s)
cycle 0
RCK
TRPH TRC TRRS TRRH
RRST
TRES
TREH
RE
TRPW TAC TOH
DO7~0
n-1
n
n+1
0
/PLRTY=VDD ,OE="L" Read Cycle Timing (RE, RRST)
cycle n TRPL
cycle n+1
cycle n+2
cycle n+3
cycle n+4
RCK
TRPH TRC TOES TOEH
OE
TOPW TAC TOH THZ Hi-Z TLZ
DO7~0
n-1
n
n+1
n+4
/PLRTY=VDD ,RE="L"
,RRST="H" Read Cycle Timing (Output Enable)
AL440B
February 20, 2003
26
AL440B
cycle n
Reset cycle (s)
cycle 0
cycle 1
WCK
TTR TWRS TWRH
WRST
TDS
TDH
DI7~0
n-1
n
0
1
/PLRTY=GND
, WE= "H"
, IE= "H"
Write Cycle Timing (Write Reset)
cycle n TWPL
cycle n+1
Disable cycle (s)
cycle n+2
WCK
TWPH TWC TWES TWEH
WE
TWPW TDS TDH
DI7~0
n-1
n
n+1
n+2
/PLRTY=GND ,IE="H"
,WRST="L" Write Cycle Timing (Write Enable)
AL440B
February 20, 2003
27
AL440B
cycle n TWPL
cycle n+1
Disable cycle (s)
cycle 0
cycle 1
WCK
TWPH
TWC
TWRS
TWRH
WRST
TWES
TWEH
WE
TWPW TDS TDH
DI7~0
n-1
n
n+1
0
1
/PLRTY=GND ,IE="H" Write Cycle Timing (WE, WRST)
cycle n TWPL
cycle n+1
cycle n+2
cycle n+3
cycle n+4
WCK
TWPH TWC TIES TIEH
IE
TIPW
TIH
DI7~0
n-1
n
n+1
n+4
/PLRTY=GND ,WE="H"
,WRST="L" Write Cycle Timing (Input Enable)
AL440B
February 20, 2003
28
AL440B
cycle n TRPL Reset cycle (s) cycle 0 cycle 1
RCK
TRPH
TRRS
TRRH
RRST
TAC TOH
DO7~0
n-1
n
0
0
1
/PLRTY=GND ,RE= "H"
,OE= "H"
Read Cycle Timing (Read Reset)
cycle n TRPL
cycle n+1
Disable cycle (s)
cycle n+2
RCK
TRPH TRC TRES TREH
RE
TRPW TAC TOH
DO7~0
n-1
n
n+1
n+2
/PLRTY=GND ,OE="H"
,RRST="L" Read Cycle Timing (Read Enable)
AL440B
February 20, 2003
29
AL440B
cycle n TRPL
cycle n+1
Disable cycle (s)
cycle 0
RCK
TRPH TRC TRRS TRRH
RRST
TRES
TREH
RE
TRPW TAC TOH
DO7~0
n-1
n
n+1
0
/PLRTY=GND ,OE="H" Read Cycle Timing (RE, RRST)
cycle n TRPL
cycle n+1
cycle n+2
cycle n+3
cycle n+4
RCK
TRPH TRC TOES TOEH
OE
TOPW TAC TOH THZ Hi-Z TLZ
DO7~0
n-1
n
n+1
n+4
/PLRTY=GND
,RE="H"
,RRST="L" Read Cycle Timing (Output Enable)
AL440B
February 20, 2003
30
AL440B
14.0 Mechanical Drawing - 44 PIN PLASTIC TSOP (II)
AL440B
February 20, 2003
31
"D "
(Unit: mm)
"E1"
"b"
NOTE: 1. Controlling Dimension : Millimeters. 2. Dimension "D" does not include mold protrusion. Mold protrusion shall not exceed 0.15(0.006") per side. Dimension "E1" does not include interlead protrusion. Interlead protrusion shall not exceed 0.25(0.01") per side. 3. Dimension "b" does not include damar protrusions/intrusion. Allowable damar protrusion shall not cause the lead to be wider than the MAX "b" dimension by more than 0.13mm. Damar intrusion shall not cause the lead to be narrower than the MIN "b" dimension by more than 0.07mm.
AL440B
December 31, 2002
32
15.0 Application Notes
15.1 Chip Global Reset Recommend Circuit
To ensure a proper reset pulse can be applied to /RESET pin (pin 27) to complete the power-on reset, the recommend reset circuit is to connect the AL440B /RESET pin (pin 27) to VDD with a 2k resistor and to Ground with a 10f capacitor as follows.
AL440B
8-bit Input DI[7:0] DO[7:0] 8-bit Output
VDD 2K Ohm
27
/RESET
50K Ohm
10 uf
AL440B Global Reset Circuit
It is also recommend adding buffers for the power-on reset circuit to increase the driving capability for any application with multiple AL440B chips.
15.2 The AL440B Reference Schematic
U8 AL440 VDD3S DI0 DI1 DI2 DI3 DI4 DI5 DI6 DI7 RNSMD1 1 2 3 4 R5 R3 10 8 7 6 5 10 2K 5 29 40 CTL0 CTL1 CTL2 CTL3 CTL4 CTL5 10 11 13 14 15 16 17 WE IE WCK WRST IRDY PLRTY TEST RE OE RCK RRST ORDY SDA SCL SDAEN 35 34 32 31 30 25 24 23 1 2 3 4 6 7 8 9 DI0 DI1 DI2 DI3 DI4 DI5 DI6 DI7 DO0 DO1 DO2 DO3 DO4 DO5 DO6 DO7 44 43 42 41 39 38 37 36 DO0 DO1 DO2 DO3 DO4 DO5 DO6 DO7 RNSMD3 CTL7 1 CTL8 2 CTL9 3 CTL10 4 CTL11 1 CTL12 2 CTL13 3 CTL14 4 RNSMD4 VDD VDD VDD /RESET AVDD 27 18 FAVDD 0.1uf 12 26 33 GND GND GND NC NC NC NC AGND 22 C62 R5 1 10 2 VDD3S + C67 10uF 10 8 7 6 5 8 7 6 5 10 R1 RE OE RCK RRST ORDY SDA SCL SDAEN 2K VDD3S R6 R7 4.7K 4.7K
WE IE WCK WRST IRDY R2 VDD3S 2K
Populate R2 or R3 to select Control Singals polarity
VDD3S 1 L5 F B FB C54 + 10uF 0.1uf C55 2 FDVDD 0.1uf 0.1uf C56 C57
F L7
B FB
28 19 20 21
AL440B
December 31, 2002
33
CONTACT INFORMATION
Averlogic Technologies Corp. 4F, No. 514, Sec. 2, Cheng Kung Rd., Nei-Hu Dist., Taipei, Taiwan Tel: +886 2-27915050 Fax: +886 2-27912132 E-mail: sales@averlogic.com.tw URL: http://www.averlogic.com.tw
Averlogic Technologies, Inc. 90 Great Oaks Blvd. #204, San Jose, CA 95119 USA Tel: 1 408 361-0400 Fax: 1 408 361-0404 E-mail: sales@averlogic.com URL: http://www.averlogic.com

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