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axiom manufacturing ? 2813 industrial lane ? garland, tx 75041 email: sales@axman.com web: http://www.axman.com demo908gz60 demonstration module for freescale 68hc908gz60
demo908rg60 august 6, 2004 2 contents cautionary no tes ..............................................................................................................4 termin ology .................................................................................................................... 4 feature s ....................................................................................................................... .........5 reference docum entation ........................................................................................ 6 getting start ed................................................................................................................ ..6 run mo de ....................................................................................................................... .... 6 mon08 debug mode on com ......................................................................................... 7 software devel opment .............................................................................................. 8 memory map ..................................................................................................................... .....8 operat ion ...................................................................................................................... ........9 power su pply .................................................................................................................. 9 tb1 ? terminal block ........................................................................................................ 9 pwr_sel ju mper .......................................................................................................... 10 power sw itch ................................................................................................................ 11 reset sw itch ................................................................................................................. 11 timing ......................................................................................................................... ....... 11 connectors j1 and j2 ...................................................................................................... 11 communicat ions ........................................................................................................... 12 rs-232 communi cations ................................................................................................. 12 com connec tor .............................................................................................................. 13 com select jumper ........................................................................................................ 13 lin communica tions..................................................................................................... 14 can communica tions................................................................................................... 14 mon08 communi cations.............................................................................................. 14 mon08 config uration ................................................................................................. 15 mon08 po rt ................................................................................................................. 16 user comp onents ........................................................................................................ 16 pushbutton s witches ....................................................................................................... 17 led indi cators ................................................................................................................. 17 rv1 potentio meter .......................................................................................................... 17 rz1 phot ocell .................................................................................................................. 17 appendi x a..................................................................................................................... .......18 bill of mate rials .......................................................................................................... 18
demo908rg60 august 6, 2004 3 table of figures figure 1: tb1 terminal block c onnector ..................................................................................10 figure 2: pwr_sel jumper se ttings.......................................................................................10 figure 3: co m connec tor........................................................................................................ .13 figure 4: com_mo de jum per ................................................................................................13 figure 5: com_ sel jum per ....................................................................................................14 figure 6: lin connecto r ? con1, con2..................................................................................14 figure 7: can bu s connecto r ..................................................................................................14 figure 8: mon_en jumper se tting ..........................................................................................15 figure 9: vtst_en jumper se tting .........................................................................................15 figure 10: mon08 on com se tup ...........................................................................................15 figure 11: mon08 on port setup .............................................................................................16 figure 12: mon08 po rt connec tor ...........................................................................................16 table of tables table 1: mcu io connecto rs ...................................................................................................12 table 2: com connecti ons ......................................................................................................1 3 table 3: user_en option se ttings .........................................................................................17
demo908rg60 august 6, 2004 4 cautionary notes 1) electrostatic discharge (esd) prevention measures should be used when handling this product. esd damage is not a warranty repair item. 2) axiom manufacturing does not assume any liab ility arising out of t he application or use of any product or circuit described herein; nei ther does it convey any license under patent rights or the rights of others. 3) emc information on the demo908gz60 module: a) this product as shipped from the factory with associated power supplies and cables, has been verified to meet with requirements the fcc as a class a product. b) this product is designed and intended for us e as a development platform for hardware or software in an educational or professional laboratory. c) in a domestic environment, this product may cause radio interference in which case the user may be required to take adequate prevention measures. d) attaching additional wiring to this product or modifying the products operation from the factory default as shipped may effect its performance and cause in terference with other apparatus in the immediate vicinity. if such interference is detected, suitable mitigating measures should be taken. terminology this development module uses option selection jum pers. a jumper is a plastic shunt that con- nects 2 terminals electrically. terminology for app lication of the option jumpers is as follows: jumper on, in, or installed - jumper is inst alled such that 2 pins are connected together. jumper off, out, or idle - jumper is insta lled on 1 pin only. it is recommended that jump- ers be idled by installing on 1 pin so they will not be lost. cut-trace ? a circuit trace connection betw een component pads. the circuit trace may be cut using a knife to break the default connec tion. to reconnect t he circuit, simply in- stall a suitably sized 0-ohm resistor or attach a wire across the pads.
demo908rg60 august 6, 2004 5 features the demo908gz60 is an evaluation or dem onstration module for the 68hc908gz60 microcontroller. development of applicati ons is quick and easy with the included wall plug, db9 serial cable, sample software tools, and examples. the mon08 port is provided for development tool application and is compatible with hc08 monitor interface cables and software. the module provides options to a llow mon08 access through the com port also. a 40-pin mcu i/o connector (j1) allows interf acing the demo908gz60 module to external connections. features: ? 68hc908gz60 cpu ? 64 lqfp ? 60k byte flash ? 2k bytes ram ? 53 i/o lines, 13 dedicated ? 16-bit, 2-ch timer w/ ic/oc/pwm ? 16-bit, 6-ch timer w/ ic/oc/pwm ? sci and spi communications ports ? 8 key board wake-up ports ? adc ? 4mhz internal bus operation ? regulated +5v power supply ? power input selection jumper ? optional power input from connector j1 ? optional power output through connector j1 ? 8 mhz ceramic resonator ? rs-232 com serial port w/ db9 connector ? optional mon08 interface through com port ? user components provided ? 3 push switches; 2 user, reset ? 3 led indicators; 2 user, +5v ? run/load slide switch ? on/off slide switch ? option jumpers ? enable user component ? power select ? osc_sel ? com_sel ? mon_en ? vtst_en ? connectors ? 2 40-pin mcu i/o connector, stack through type ? 2-position, screw-type, power input terminal block ? mon08 debug cable header ? db9 serial com connector ? supplied with db9 serial cabl e, documentation (cd), and manual. specifications: module size 2.45? x 3.1? power input: 9vdc @ 200 ma typical, +6 to +16vdc,
demo908rg60 august 6, 2004 6 reference documentation reference documents are provided on t he support cd in acrobat reader format. demo908gz60_sch_c.pdf demo908gz60 module schematic rev. c demo908gz60_ug.pdf demo908gz60 us er guide (this document) mc68hc908gz60/d.pdf 68hc908gz60 device user guide see the hc08 support cd provided with this board fo r all the documentation and support files provided. getting started the demo908gz60 module operates in two bas ic modes, run mode, or mon08 debug mode. run mode supports user application operation from power on or reset condition. mon08 debug mode supports t he development and debug of applic ations via the mon08 embedded debug monitor. see the related sections below for quickly starting the module in the desired operation mode. the module may be operating a demonstration (demo) program when shipped from the factory. if so, the module kit contents will include a quick start document explaining the operation of the demonstrat ion program. the demo pr ogram operates in run mode. the module must be powered to operate. the +5v will light when the board is powered from the on-board regulator, or if the board is setup to provide power to an external circuit through connector j1. the +5v led should not light w hen the board is powered th rough connector j1. if it does, the pwr_sel jumper is incorrectly configured and may result in damage to the on- board regulator. refer to t he pwr_sel option and j1 connector chapter for more detail on these selections. run mode run mode operates the hc08 applicat ion contained in the internal flash memory from reset or power on condition. use the following setti ngs to configure the demo908gz60 module for run mode to get started quickly. 1. configure pwr_sel option for input supply to power the module. if supply is via j1 con- nection, install module on j1 external connection in powered down condition. 2. connect serial communication cable between the module com port an d the host if needed. launch supporting host software for the module communication.
demo908rg60 august 6, 2004 7 3. set module options for run mode: vtst_en off / open / idle mon_en off/ open / idle com_en 2-3 (com position) run/load set to run user_en enabled as needed for application operation 4. power on the module. application will begin to execute. mon08 debug mode on com mon08 monitor mode operates the hc08 inte rnal mon08 debug monitor from power-on. this mode is accessible by setting module opti ons or by applying a supporting development cable to the debug port. for debug cable applicat ion, the state of the mon_en option jump- ers is don?t care. the com_en option jum per should be set to t he 2-3 position. the vtst_en jumper may be required. refer to t he mon08 configuration se ction of this docu- ment for further details. the following se ttings configure the demo908gz60 module for mon08 debug mode on com: 1. configure pwr_sel option for input supply to power the module. if supply is via j1 con- nection, install module on j1 external connection in powered down condition. note that the vtst_en option requires 9vdc minimum applied at tb1 to function correctly. 2. connect one end of the supplied 9-pin serial cable to a free com port on the pc. connect the other end of the cable to the co m port connector on the demo908gz60 module. 3. install and launch the pc hosting software for the mon08 communication interface. this may be a c compiler with ide and mon08 communication or another mon08 debug host- ing type software. 4. set the module options for mon08 debug mode: vtst_en on / installed on both pins (required if the reset vector is not erased in the flash memory) mon_en on / installed on both pins com_en 1-2 (debug position) user_en enabled as needed for application operation 5. apply +9vdc minimum power to the module. this may be applied by tb1 or through j1. 6. hosting development software will establish mon08 communication now.
demo908rg60 august 6, 2004 8 software development software development will require the use of an hc08 assembler or compiler and a host pc operating a mon08 debug interface. supplied with this board is the motorola mcuez hc08 assembler tools along with the axiom mon 08 ide for windows for debugging and flash pro- gramming. a demonstration or evaluation c opy of a c compiler may also be provided. a powerful source code generation tool called driveway? is also provided on the support cd. this can generate c source c ode for the hc08 microcontroller peripherals, based on setup. see the driveway tm readme.txt file for more information. memory map 0x0000 0x003f registers 64 bytes 0x0040 0x043f ram-1 1024 bytes 0x0440 0x0461 registers 34 bytes 0x0462 0x04ff flash-2 158 bytes 0x0500 0x057f mscan 128 bytes 0x0580 0x097f ram-2 1024 bytes 0x0980 0x1b7f flash-2 4608 bytes reserved 0x1e00 0x1e0f monitor rom 16 bytes reserved 0x1e20 0x7fff flash-2 24.5k bytes 0x8000 0xfdff flash-1 31.5k bytes 0xfe00 0xfe0e status and control 15 bytes 0xfe0f 0xfe1f unimplemented 0xfe20 0xff7f monitor rom 352 bytes 0xff80 0xff88 flash control 8 bytes 0xff89 0xffcb reserved 0xffcc 0xffff vectors 52 bytes note: the memory map above generally describes the mcu memory map. refer to the 68hc908gz60 documentation for a detailed memory map.
demo908rg60 august 6, 2004 9 operation the demo908gz60 module provides input and output features to a ssist in microcontroller ap- plication development. the user has access to mcu ports through connectors j1 and j2. each connector is a 40-position pass-through socket type connector mounted on the bottom of the module. insertion of pin headers is possible from the top or bottom of the module. this allows stacking or connecting the module as needed. connector j1 may be used to apply power to the module as well as rs-232 communi cations signals. care must be exercised when using the mcu_port to power the modul e, as only regulated +5v dc should be ap- plied to this connection. the pwr_sel option jumper configures the module to accept input power on connector j1 or to provide regulated +5 v to an external device attached to connector j1. multiple option jumper blocks configure modul e operation. enabling an associated option re- quires installing a jumper, or s hunt, across the appropriate header pins so that both pins are connected via the jumper. removing the shunt disables the associated option. power supply input power may be applied by external connection to a 2 position terminal block and 5v regulator or directly from connector j1. the input supply is selected by the pwr_sel option. tb1 ? terminal block the tb1 terminal block allows external voltage to be supplied to the module. input voltage should be limited to +6vdc and +16vdc; +9vdc is typical. the terminal block is a 3.55mm, screw-type, connector that accepts a maximu m 18 awg wire. an on- board voltage regulator (vr1) converts the input voltage to the +5vdc used by the module. bulk capacitance on the regulator input and output provides noise immunity on the power input. reverse polarity protection is provided at the terminal block input. this will prevent damage to the module if the input vo ltage is inadvertently reversed.
demo908rg60 august 6, 2004 10 figure 1: tb1 terminal block connector pwr_sel jumper the pwr_sel jumper selects the source of pow er input to the module, or provides+5vdc to j1 for use by external circui ts. the module takes voltage input from the 2-position on-board voltage regulator or from the 40-pin mcu connector (j1). power input at the terminal block must be dc voltage between +7vdc and +16vdc. power input on the mcu connector must be regulated voltage between +4.75vdc and +5. 25vdc. the mcu_port connector power input allows use of batteries, or other alternate sources, to power the module. caution: module damage may occur if the m cu_port power input pins (j1- 1, j1-3) are over-driven. the pwr_sel option jumper provides 3 possible configurations; source power from the pwr connector, source power from j1, or source power from pwr and supply power to j1. the figure below shows the settings for each configuration. figure 2: pwr_sel jumper settings 1 ? ? 2 ? ? module powered from external input connected to j1-1 (+) and j1-3 (-). +5vdc maximum input voltage. 1 ? ? 2 ? ? module powered from external +6vdc - +16vdc connected to tb1 terminal block. j1-1 is open or not connected. 1 ? ? 2 ? ? module powered from external +6vdc - +16vdc connected to tb1 terminal block. module pr ovides +5vdc output at pin j1 for use by external circuits. note: power output from the module is limited by the 250 ma maximum out- put of the on-board voltage regulator. note: external circuit connected to j1 s hould limit current flow to less than 50 ma to prevent current-lim iting the power supply (vr1). +6vdc - +16vdc gnd 2 position, screw- type terminal block mcu_port j1 +
demo908rg60 august 6, 2004 11 power switch a power switch (pwr_sw) has been provided bet ween the input terminal block and the volt- age regulator to allow the user to turn the board on and off. the power switch connects or disconnects only power applied to the terminal blo ck. voltage applied to connector j1 is not affected by this switch. reset switch the reset switch provides a method to apply an asynchronous reset to the module. press- ing the reset switch applies a low voltage level to the rst* input. a resistor tied to the high voltage rail prevents spurious reset input to t he mcu. a capacitor tied to ground holds the signal line low for a sufficient amount of time. timing an 8 mhz ceramic resonator at y1 provides timing to the demo908gz60. this allows a de- fault 4.0 mhz internal operating frequency. us ing the embedded pll, the internal bus fre- quency can be increased to a maximum of 8 mhz. the resonator output is routed to the mcu only and is not available at connector (j1). connectors j1 and j2 connectors j1 and j2 are 40-pin, surface -mount, socket headers mounted on the bottom of the module. each connector is mounted over plated-through holes in the pcb. the socket is a pass-through type socket designed to allow header insertion from either the top or bottom. these connectors provide maximum flexibility allo wing the module to connect directly to an ex- panded development environment or to test equipment. access to all mcu signals is available at connector j1 or j2. power may be supplied to the module through pins j1 -1 (+v) and j1-3 (gnd). use of this op- tion requires input voltage between +4.75vdc and +5 .25vdc. this input directly connects to the module power and ground planes. care should be exercised not to over-drive this input. j1 can also be used to source power from the on-board regulator to exte rnal modules. the pwr_sel option header determines how power is routed to and from the module. note: power output from the module is limited by the 250 ma maximum output of the on-board voltage regulator. the table below shows the pin-out for the mcu io connectors.
demo908rg60 august 6, 2004 12 table 1: mcu io connectors j1 j2 v x 1 2 irq* pte2 41 42 nc gnd 3 4 reset* pte3 43 44 nc pet0/txd 5 6 pta2/kbd2/ad10 pte4 45 46 nc pte1/rxd 7 8 pta3/kbd3/ad11 pte5 47 48 nc pta0/kbd0/ad8 9 10 ptb0/ad0 ptf0 49 50 nc pta1/kbd1/ad9 11 12 ptb1/ad1 ptf1 51 52 nc ptd4/t1ch0 13 14 ptb2/ad2 ptf2 53 54 nc ptd5/t1ch1 15 16 ptb3/ad3 ptf3 55 56 nc ptd2/mosi 17 18 ptb4/ad4 ptf4/t2ch2 57 58 nc ptd1/miso 19 20 ptb5/ad5 ptf5/t2ch3 59 60 nc ptd3/spsck 21 22 ptb6/ad6 ptf6/t2ch4 61 62 nc ptd0/ss*/mclk 23 24 ptb7/ad7 ptf7/t2ch5 63 64 nc pct2 25 26 ptc0/cantx ptg0/ad16 65 66 nc pct3 27 28 ptc1/canrx ptg1/ad17 67 68 nc pct4 29 30 pta24/kbd4 ptg2/ad18 69 70 nc pct5 31 32 pta5/kbd5/ad13 ptg3/ad19 71 72 nc pct6 33 34 ptd6/t2ch0 ptg4/ad20 73 74 nc pte2 35 36 ptd7/t2ch1 ptg5/ad21 75 76 nc pte3 37 38 pta6/kbd6/ad14 ptg6/ad22 77 78 nc pte4 39 40 pta7/kbd7/ad15 ptg7/ad23 79 80 nc communications the demo908gz60 module provides a single seri al communications port and a single can communications port. the enhanced sci port supports both rs-232 and local interconnect network (lin) protocols. an option jumper (com_sel) selects between the communications protocol implemented. the ca n port utilizes a direct data connection to the mcu and pro- vides a 3-pin header to connect off-board circuits. rs-232 communications an rs-232 translator (u2) provi des rs-232 signal level to ttl/cmos logic level translation on the com port. signals txd and rxd are rout ed between the transce iver and the mcu. these signals are also routed to connector j1. rs-232 communication signals input on j1 must be ttl/cmos logic levels; no translation s upport is provided through this path. the transceiver output may also be dr iven off-module if a suitable interface is used. as added de- velopment support, hardware flow control signal s rts and cts are available on the logic side of u3. these signals are routed to vias located near the transceiver (u3). rts has been bi- ased properly to support 2-wire rs-232 communications. use of the j1 connector to i nput rs-232 signals requires disab ling the on-board rs-232 trans- ceiver to prevent signal corrupt ion. disabling the on-board transceiver is accomplished by re- moving the com_sel jumper. details on the co m_sel jumper are shown in the table below. the figure shows the jumper position to enable rs-232 communications.
demo908rg60 august 6, 2004 13 table 2: com connections hc08 port mcu pin com signal i/o port connector pte0/txd u1-2 txd out j1-5 pte1/rxd u1-3 rxd in j1-7 com connector a standard 9-pin dsub connector provides external connections for the sci port. the sci port provides an alternate interface for use with the mon08 monitor. component u2 provides rs- 232 translation services. the figure below details the db9 connector. figure 3: com connector 1 6 txd 2 7 rts rxd 3 8 cts 4 9 nc gnd 5 female db9 connector that interfaces to the hc08 internal sci1 serial port via the u2 rs232 transceiver. it provides simple 2 wire asynchro- nous serial communications without flow control. flow control is provided at test points on the module. pins 1, 4, and 6 are connected together for null status to the host. the communications mode of the com port is determined by the com_sel jumper. this 3- pin jumper allows the user to select between sci serial communications and single-wire mon08 communications. figure 4: com_mode jumper ? com rs-232 communications on com enabled mon ? mon08 on port pta0 communica- tions on com enabled com select jumper the com_sel jumper selects between the rs-232 protocol or the lin protocol on the mcu sci port.
demo908rg60 august 6, 2004 14 figure 5: com_sel jumper ? ? select rs-232 serial communications on com ? ? select lin serial communications through con1 and con2 lin communications the demo908gz60 implements a single local in terconnect network (lin) interface on the esci port. the lin physical interface consists of a mc33661 transceiver at u5 and 2 4- position molex mini-fit connectors at con1 and con2. the lin interface supports data transmission speeds up to 20 kbps. the lin interf ace is configured in a master ? slave con- figuration with a single master controlling multiple slaves. figure 6: lin connector ? con1, con2 lin bus ? ? v sup gnd ? ? gnd note: signal assignment looking into connector on pcb mating connector: molex p/n 39-01-2040 connector pins: molex p/n 39-00-0039 can communications the demo908gz60 implements a single fault-tole rant controller area network (can) inter- face. can is used to high-speed and fault-tole rant automotive networks. the can physical interface consists of a mc33388 transceiver at u 4 and a single 3-position header. the trans- ceiver converts serial data from the mcu to differential data for the can bus. the physical layer implemented supports data rates up to 125 k bps. the differential bus termination voltage is provided by the physical interface. the figur e below details the pin-out of the can bus con- nector. figure 7: can bus connector 3 ? canl negative can bus signal 2 ? gnd pcb ground 1 ? canh positive can bus signal mon08 communications the demo908gz60 provides 2 methods for accessi ng the internal monitor. serial mon08 access is provided through the com port. a mon08 compatible programming pod may also attach to the 14-pin mon08 port. monitor mode is enabled by the com_mode, mon_en, and vtst_en option jumpers. some mon08 pods can supply vtst directly eliminating the need com lin com lin
demo908rg60 august 6, 2004 15 to set the vtst_en option ju mper. the mcu supports monitor mode communications at 7200 bps. refer to mon08 pod documentation for further details. the internal monitor may also be access ed through and the through com connector. as above, mon08 mode, through the com port, is enabled by the com_sel, the mon_en, and vtst_en option jumpers. this allows mon08 debugging without the expense of a 3 rd -party mon08 pod. the table below s hows the selection settings for the com_sel jumper. the mcu supports monitor mode communications at 7200 bps. mon08 configuration the following group of figures show the setting necessary to configure the demo908gz60 for monitor mode. the mon_en jumper setti ng enable communication between the com port and the mcu mon08 port, the vtst_en jumper provides the high voltage necessary to force the mcu to monitor mode. the com_sel jumper disables the rs-232 interface to pre- vent corrupting the serial data stream. figure 8: mon_en jumper setting on mon08 monitor mode signaling enabled ? ? off mon08 monitor mode signaling disabled figure 9: vtst_en jumper setting on irq* signal line set to 8.2v. mon08 monitor mode force entry enabled. ? ? off irq* signal line pulled up to v dd . mon08 monitor mode available if reset vector is erased. note: to utilize the mon08 monitor mode, the input voltage must exceed 9.0vdc . the following table details the settings necessa ry to configure the mcu for mon08 monitor mode operation via the com port. figure 10: mon08 on com setup mon_en on mon08 signaling enabled vtst_en on force mon08 monitor mode com_mode ? mon08 signaling enabled mon note : to utilize the mon08 monitor m ode, the input voltage must exceed 9.0vdc.
demo908rg60 august 6, 2004 16 mon08 port the mon08 port is a 16-pin header compatible with a motorola mon08 monitor mode pod. this allows the connection of a backgr ound debugger for software development, programming, and debugging in real-time without using hc08 i/o resources. figure 11: mon08 port connector 1 2 gnd 3 4 rst* see the hc08 reference manual for complete mon08 documentation 5 6 irq1* 7 8 pta0 9 10 pta1 11 12 ptb0 osc1 13 14 ptb1 v dd 15 16 ptb4 when using the mon08 pod to access monitor mode, care must be exercised to configure the host software correctly. many mon08 pods ar e capable to powering the target board through the mon08 port. in this case, the appropria te voltages will be applied to the board and the state of the monitor configur ation jumpers is don?t care. if the board is not powered through the mon08 port, then the minimum applied voltage is +9vdc and the vtst_en jumper must be installed. r egardless of how the board is pow ered, the state of the mon_en jumper is don?t care. when using the mo n08 port for monitor access, the com_mode jumper should be set to 2 ? 3 to allow rs-232 communications. figure 12: mon08 on port setup mon_en on / off don?t care vtst_en on / off on if vtst voltage not supplied by mon08 pod. else, don?t care. com_mode ? rs-232 signaling enabled com note : if powered externally, +9vdc must be applied and vtst_en jumper must be installed. else, the board may be powered from the mon08 pod and vtst_en is don?t care. user components the demo908gz60 provides 2 user push switc hes, 2 user led indicators, a potentiometer, and photocell circuit for user applications. user _en option jumper allows each option to be enabled or disabled individually. to enable a us er option, simply install the appropriate jumper. remove the jumper to disable an option.
demo908rg60 august 6, 2004 17 table 3: user_en option settings jumper on off mcu port user 1 enable sw1 disable sw1 ptc6 (u1-45) user 2 enable sw2 disable sw2 ptc5 (u1-44) user 3 enable led1 disable led1 ptf0 (u1-8) user 4 enable led2 disable led2 ptf1 (u1-9) user 5 enable pot disable pot ptb2 (u1-32) user 6 enable sensor disable sensor ptb3 (u1-33) pushbutton switches two push button switches provide momentary acti ve low input for user applications. sw1 and sw2 are enabled to the hc08 i/o por ts by the user option bank. sw1 and sw2 provide in- put to hc08 i/o ports ptc6 and ptc5 respectively. led indicators indicators led1 and led2 are enabled from hc 08 i/o ports by the u ser_en option. the led indicators are active low and illuminate when a logic low (0v) signal is driven from the respective mcu i/o port. mcu ports ptf0 and ptf1 drive led1 and led2 respectively. rv1 potentiometer a 5k ? , thumb-wheel potentiometer at rv1 prov ides variable resistance output for user applications. the device provides a 0 to vdd (+ 5v typical) output to the ptb2 input when enabled. rz1 photocell a visible-light sensitive photoc ell (rz1) with an amplifying opam p circuit provides a variable voltage output for user applicati ons. circuit output voltage ranges between .5v to vdd typical and is inversely proportional to light intensit y on the surface of the sensor (vdd = dark). when enabled, the circuit output voltage is pr ovided to mcu port ptb3 input for user application.
demo908rg60 august 6, 2004 18 appendix a bill of materials item qty title ref mfr mfr-p/n 1 3 cap, tant, 10uf, 10v, smb c3, c16, c23 avx tajb106k010r 2 1 cap, elect, 100uf, 16v, alum, smd c20 nichicon uwx1c101mcl1gb 3 1 cap, elec, 10uf, 35v, alum, smc c24 nichicon uwx1v100mcl1gb 4 5 cap, mon, 1uf, 16v, 0805 c1, c4, c7, c8, c9 5 7 cap, mon, .1uf, 50v, 0805 c11, c15, c17, c18, c19, c22, c25 meritek ma080525u104m500 6 7 cap, mon, .01uf, 50v, 0805 c2, c5, c6, c12, c13, c14, c21 7 1 cap, mon, .033uf, 25v, 0805 c10, 1 res, ntwk, 100k ohm, 8p7r, bussed r1 8 2 res, carbon, 510 ohm, 5%, 1/16w, 0805 r24, r25 9 11 res, carbon, 1k ohm, 5%, 1/16w, 0805 r6, r7, r9, r13, r18, r19, r20, r21, r22, r27, r32 10 9 res, carbon, 10k ohm, 5%, 0805 r8 , r10, r23, r28, r29, r34, r35, r36, r39 11 1 res, carbon, 20k ohm, 5%, 0805 r38 12 1 res, carbon, 33k ohm, 5%, 1/16w, 0805 r26 13 2 res, carbon, 47k ohm, 5%, 0805 r11, r33 14 7 res, carbon, 100k ohm, 5%, 1/16w, 0805 r14, r15, r16, r17, r30, r31, r37 15 1 res, carbon, 1m ohm, 5%, 1/16w, 0805 r12 16 1 res, pot, 5k ohm, 9mm vert. rv1 bourns 3352w-1-502 17 1 photocell, 30k -1m rz1 photonic pdv-p9003 panasonic efo-s8004e5 ecs ecs-sr1-8.00-b avx/kyocera pbrc-8.00hr 18 1 resonator, cer, 8.00mhz, w/caps, 3pos, smt y1 murata cstcc8m00g53-r0 19 2 diode, rect, s1a, 1a, 50v, do214ac d1, d2 vishay s1a 20 1 diode, zener, 8.2v, 5%, 225mw, sot23 d3 on semiconductor mmbz5237blt1 21 1 diode, schottky, 30v, 200ma, bat54c, com. cathode, sot23 d4 general sem.
demo908rg60 august 6, 2004 19 22 9 led, green, w/reflector, 1206, smt led1, led2, led3, led4, led5, led6, led7, led8, +5v rohm sml-010mtt86 23 1 ind, ferrite, emi, 330 ohm @ 100 mhz, 1.5a, 0805 fb1 mouser 81-blm21p331sg 24 1 ind, 10uh, 10%, 1210 l1 vishay imc1210sy100k 25 1 ic, mcu, mc68hc908gz60, 64lqfp u1 motorola mc68hc908gz60cfu 26 1 ic, can xcvr mc33388d, soic14 u4 motorola mc33388d 27 1 ic, lin xcvr, mc33661d,soic8 u5 motorola mc33661d 28 1 ic, dual rs232 xcvr, 3.3v, esd, 16soic u2 intersil icl3232ecbn 29 1 ic, opamp, single, sot23-5 u3 fairchild lmv321as5x 30 1 ic, hex inv, 74ac04, 14soic u6 stm 74ac04mtr 31 1 ic, quad buf, 3-state, ttl , 14soic, 74act125 u7 stm 74act125m 32 1 vreg, ldo, 5.0v, 250ma, 8 soic vr1 stmicroelectronics l4931cd50 33 3 sw, pb, 5mm sq, thru sw1, sw2, reset e-switch eg1827 34 2 sw, slide, spdt, thru l=2mm run/load, pwr_sw e-switch eg1271 35 2 conn, 2x20 socket hdr, pass thru, .1", bottom entry, smt j1, j2 samtec ssm-120-l-dv-be-k-a 36 1 conn, term blk, 2pos, 3.55mm, thru tb1 on shore technology ed555/2ds 37 1 conn, dsub, 9p, f, ra, pcb mount com 38 2 conn, mini-fit 4 position, ra, thru con1, con2 39 2 conn, 1x2, pin header, .1" ctr, thru mon_en, vtst_en 40 2 conn, 1x3 pin header, .1" ctr, thru can_port, com_mode 41 1 conn, 2x2 pin header, .1" ctr, thru pwr_sel 42 1 conn, 2x3 pin header, .1" ctr, thru com_sel 43 1 conn, 2x6 pin header, .1" ctr, thru user_en 44 1 conn, 2x8 pin header, .1" ctr, thru mon08 45 4 hdw, stand-off, .250x.375, hex, alum keystone 2202 46 4 hdw, screw, 4-40x3/8, 18-8, ss 47 14 hdw, shunt, 2 pos, .1" generic 48 1 pcb, demo908gz60, 2 layer, 3.2 x 2.2

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