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1、精选优质文档-倾情为你奉上PCI总线接口定义图为32位总线,且可扩展为64位,有124个脚(实际上去掉4个定位卡有120引脚),AD线有32条,工作频率为33MHZ/66MHZ,最大传输速率133MB/S。总线宽度32位(5V) 64位 3.3V。 总线(位)底视图 名称 信号名称 信号名称 Pin Side A1 R Side A2 R Side B1 R Side B2 R 1 TRST# 352 +12V 535 -12V TCK 0 2 TMS TD1 350 Ground 0 TDO 3 +5V 352 INTA#526 +5V 351 +5V 350 4 INTC#528 +5V
2、350 INTB#526 INTD #526 5 Reserved 543 +5V 351 PRSNT1 # Reserved 6 Reserved Ground 0 PRSNT2 # Ground 0 7 Ground 0 Reserved Ground 0 Reserved 8 Reset#477 +5V 351 Ground 0 CLK734 9 GNT#500 Ground 0 Ground 0 REQ #473 10 Reserved 1955 AD(30) 477 +5V 350 AD(31) 477 11 +3.3V AD(28) 477 AD(29) 477 Ground 0
3、12 AD(26) 477 Ground 0 AD(27 477 AD(25) 477 13 AD(24) 476 IDSEL593 +3.3V C/BE #(3) 486 14 +3.3V AD(22) 477 AD(23) 477 Ground 0 15 AD(20) 477 Ground 0 AD(21) 477 AD(19) 477 16 AD(18) 460 AD(16) 477 +3.3V AD(17) 477 17 +3.3V FRAME# 477 C/BE #(2) 484 Ground 0 18 Ground 0 TRDY #477 ITRDY # 477 TRDY # 19
4、 Ground 0 STOP # 477 DEVSEL # 484 Ground 0 20 +3.3V SDONE 1669 LOCK # 497 PERR # 1666 21 SBO #1667 Ground 0 +3.3V SERR #472 22 PAR 476 AD(15) 477 +3.3V C/BE #(1) 485 23 +3.3V AD(13) 477 AD(14) 477 Ground 0 24 AD(11) 477 Ground 0 AD(12) 477 AD(10) 477 25 AD(09) 477 定位卡 Ground 0 定位卡 26 定位卡 C/BE #(0) 4
5、85 定位卡 AD(08) 477 27 +3.3V AD(06) 477 AD(07) 477 +3.3V 28 AD(04) 477 Ground 0 AD(O5) 477 AD(03) 477 29 AD(02) 477 AD(00) 477 Ground 0 AD(01) 477 30 +5V 350 REQ 64# 1880 +5V 350 ACK 64# 31 +5V 351 +5V 352 +5V 350 +5V 350 注:、“”表低电平有效。、Reserved为保留线。、Ground为地。、线为数据地址复合线。专心-专注-专业Pin+5V+3.3VUniversalDescr
6、iptionA1TRSTTest Logic ResetA2+12V+12 VDCA3TMSTest Mde SelectA4TDITest Data InputA5+5V+5 VDCA6INTAInterrupt AA7INTCInterrupt CA8+5V+5 VDCA9RESV01Reserved VDCA10+5V+3.3VSignal Rail+V I/O (+5 V or +3.3 V)A11RESV03Reserved VDCA12GND03(OPEN)(OPEN)Ground or Open (Key)A13GND05(OPEN)(OPEN)Ground or Open (K
7、ey)A14RESV05Reserved VDCA15RESETResetA16+5V+3.3VSignal Rail+V I/O (+5 V or +3.3 V)A17GNTGrant PCI useA18GND08GroundA19RESV06Reserved VDCA20AD30Address/Data 30A21+3.3V01+3.3 VDCA22AD28Address/Data 28A23AD26Address/Data 26A24GND10GroundA25AD24Address/Data 24A26IDSELInitialization Device SelectA27+3.3V
8、03+3.3 VDCA28AD22Address/Data 22A29AD20Address/Data 20A30GND12GroundA31AD18Address/Data 18A32AD16Address/Data 16A33+3.3V05+3.3 VDCA34FRAMEAddress or Data phaseA35GND14GroundA36TRDYTarget ReadyA37GND15GroundA38STOPStop Transfer CycleA39+3.3V07+3.3 VDCA40SDONESnoop DoneA41SBOSnoop BackoffA42GND17Groun
9、dA43PARParityA44AD15Address/Data 15A45+3.3V10+3.3 VDCA46AD13Address/Data 13A47AD11Address/Data 11A48GND19GroundA49AD9Address/Data 9A52C/BE0Command, Byte Enable 0A53+3.3V11+3.3 VDCA54AD6Address/Data 6A55AD4Address/Data 4A56GND21GroundA57AD2Address/Data 2A58AD0Address/Data 0A59+5V+3.3VSignal Rail+V I/
10、O (+5 V or +3.3 V)A60REQ64Request 64 bit ?A61VCC11+5 VDCA62VCC13+5 VDCA63GNDGroundA64C/BE7#Command, Byte Enable 7A65C/BE5#Command, Byte Enable 5A66+5V+3.3VSignal Rail+V I/O (+5 V or +3.3 V)A67PAR64Parity 64 ?A68AD62Address/Data 62A69GNDGroundA70AD60Address/Data 60A71AD58Address/Data 58A72GNDGroundA7
11、3AD56Address/Data 56A74AD54Address/Data 54A75+5V+3.3VSignal Rail+V I/O (+5 V or +3.3 V)A76AD52Address/Data 52A77AD50Address/Data 50A78GNDGroundA79AD48Address/Data 48A80AD46Address/Data 46A81GNDGroundA82AD44Address/Data 44A83AD42Address/Data 42A84+5V+3.3VSignal Rail+V I/O (+5 V or +3.3 V)A85AD40Addre
12、ss/Data 40A86AD38Address/Data 38A87GNDGroundA88AD36Address/Data 36A89AD34Address/Data 34A90GNDGroundA91AD32Address/Data 32A92RESReservedA93GNDGroundA94RESReservedB1-12V-12 VDCB2TCKTest ClockB3GNDGroundB4TDOTest Data OutputB5+5V+5 VDCB6+5V+5 VDCB7INTBInterrupt BB8INTDInterrupt DB9PRSNT1ReservedB10RES
13、+V I/O (+5 V or +3.3 V)B11PRSNT2?B12GND(OPEN)(OPEN)Ground or Open (Key)B13GND(OPEN)(OPEN)Ground or Open (Key)B14RESReserved VDCB15GNDResetB16CLKClockB17GNDGroundB18REQRequestB19+5V+3.3VSignal Rail+V I/O (+5 V or +3.3 V)B20AD31Address/Data 31B21AD29Address/Data 29B22GNDGroundB23AD27Address/Data 27B24
14、AD25Address/Data 25B25+3.3V+3.3VDCB26C/BE3Command, Byte Enable 3B27AD23Address/Data 23B28GNDGroundB29AD21Address/Data 21B30AD19Address/Data 19B31+3.3V+3.3 VDCB32AD17Address/Data 17B33C/BE2Command, Byte Enable 2B34GND13GroundB35IRDYInitiator ReadyB36+3.3V06+3.3 VDCB37DEVSELDevice SelectB38GND16Ground
15、B39LOCKLock busB40PERRParity ErrorB41+3.3V08+3.3 VDCB42SERRSystem ErrorB43+3.3V09+3.3 VDCB44C/BE1Command, Byte Enable 1B45AD14Address/Data 14B46GND18GroundB47AD12Address/Data 12B48AD10Address/Data 10B49GND20GroundB50(OPEN)GND(OPEN)Ground or Open (Key)B51(OPEN)GND(OPEN)Ground or Open (Key)B52AD8Addre
16、ss/Data 8B53AD7Address/Data 7B54+3.3V12+3.3 VDCB55AD5Address/Data 5B56AD3Address/Data 3B57GND22GroundB58AD1Address/Data 1B59VCC08+5 VDCB60ACK64Acknowledge 64 bit ?B61VCC10+5 VDCB62VCC12+5 VDCB63RESReservedB64GNDGroundB65C/BE6#Command, Byte Enable 6B66C/BE4#Command, Byte Enable 4B67GNDGroundB68AD63Ad
17、dress/Data 63B69AD61Address/Data 61B70+5V+3.3VSignal Rail+V I/O (+5 V or +3.3 V)B71AD59Address/Data 59B72AD57Address/Data 57B73GNDGroundB74AD55Address/Data 55B75AD53Address/Data 53B76GNDGroundB77AD51Address/Data 51B78AD49Address/Data 49B79+5V+3.3VSignal Rail+V I/O (+5 V or +3.3 V)B80AD47Address/Data 47B81AD45Address/Data 45B82GNDGroundB83AD43Address/Data 43B84AD41Address/Data 41B85GNDGroundB86AD39Address/Data 39B87AD37Address/Data 37B88+5V+3.3VSignal Rail+V I/O (+5 V or +3.3 V)B89AD35Address/Data 35B90AD33Address/Data 33B91GNDGroundB92RESReservedB93RESReservedB94GNDGround
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