PCI总线定义
PCI 是 Peripheral Component Interconnect 的缩写。接口卡的外观:
PCI 标准 32位/64位 接口卡
Pin
+5V
+3.3V
DescripTIon
Pin
+5V
+3.3V
DescripTIon
A1
TRST
Test Logic Reset
B1
-12V
-12 VDC
A2
+12V
+12 VDC
B2
TCK
Test Clock
A3
TMS
Test Mde Select
B3
GND
Ground
A4
TDI
Test Data Input
B4
TDO
Test Data Output
A5
+5V
+5 VDC
B5
+5V
+5 VDC
A6
INTA
Interrupt A
B6
+5V
+5 VDC
A7
INTC
Interrupt C
B7
INTB
Interrupt B
A8
+5V
+5 VDC
B8
INTD
Interrupt D
A9
RESV01
Reserved VDC
B9
PRSNT1
Reserved
A10
+5V
+3.3V
+V I/O (+5 V or +3.3 V)
B10
RES
+V I/O (+5 V or +3.3 V)
A11
RESV03
Reserved VDC
B11
PRSNT2
??
A12
GND03
(OPEN)
Ground or Open (Key)
B12
GND
(OPEN)
Ground or Open (Key)
A13
GND05
(OPEN)
Ground or Open (Key)
B13
GND
(OPEN)
Ground or Open (Key)
A14
RESV05
Reserved VDC
B14
RES
Reserved VDC
A15
RESET
Reset
B15
GND
Reset
A16
+5V
+3.3V
+V I/O (+5 V or +3.3 V)
B16
CLK
Clock
A17
GNT
Grant PCI use
B17
GND
Ground
A18
GND08
Ground
B18
REQ
Request
A19
RESV06
Reserved VDC
B19
+5V
+3.3V
+V I/O (+5 V or +3.3 V)
A20
AD30
Address/Data 30
B20
AD31
Address/Data 31
A21
+3.3V01
+3.3 VDC
B21
AD29
Address/Data 29
A22
AD28
Address/Data 28
B22
GND
Ground
A23
AD26
Address/Data 26
B23
AD27
Address/Data 27
A24
GND10
Ground
B24
AD25
Address/Data 25
A25
AD24
Address/Data 24
B25
+3.3V
+3.3VDC
A26
IDSEL
IniTIalizaTIon Device Select
B26
C/BE3
Command, Byte Enable 3
A27
+3.3V03
+3.3 VDC
B27
AD23
Address/Data 23
A28
AD22
Address/Data 22
B28
GND
Ground
A29
AD20
Address/Data 20
B29
AD21
Address/Data 21
A30
GND12
Ground
B30
AD19
Address/Data 19
A31
AD18
Address/Data 18
B31
+3.3V
+3.3 VDC
A32
AD16
Address/Data 16
B32
AD17
Address/Data 17
A33
+3.3V05
+3.3 VDC
B33
C/BE2
Command, Byte Enable 2
A34
FRAME
Address or Data phase
B34
GND13
Ground
A35
GND14
Ground
B35
IRDY
Initiator Ready
A36
TRDY
Target Ready
B36
+3.3V06
+3.3 VDC
A37
GND15
Ground
B37
DEVSEL
Device Select
A38
STOP
Stop Transfer Cycle
B38
GND16
Ground
A39
+3.3V07
+3.3 VDC
B39
LOCK
Lock bus
A40
SDONE
Snoop Done
B40
PERR
Parity Error
A41
SBO
Snoop Backoff
B41
+3.3V08
+3.3 VDC
A42
GND17
Ground
B42
SERR
System Error
A43
PAR
Parity
B43
+3.3V09
+3.3 VDC
A44
AD15
Address/Data 15
B44
C/BE1
Command, Byte Enable 1
A45
+3.3V10
+3.3 VDC
B45
AD14
Address/Data 14
A46
AD13
Address/Data 13
B46
GND18
Ground
A47
AD11
Address/Data 11
B47
AD12
Address/Data 12
A48
GND19
Ground
B48
AD10
Address/Data 10
A49
AD9
Address/Data 9
B49
GND20
Ground
A52
C/BE0
Command, Byte Enable 0
B50
(OPEN)
GND
Ground or Open (Key)
A53
+3.3V11
+3.3 VDC
B51
(OPEN)
GND
Ground or Open (Key)
A54
AD6
Address/Data 6
B52
AD8
Address/Data 8
A55
AD4
Address/Data 4
B53
AD7
Address/Data 7
A56
GND21
Ground
B54
+3.3V12
+3.3 VDC
A57
AD2
Address/Data 2
B55
AD5
Address/Data 5
A58
AD0
Address/Data 0
B56
AD3
Address/Data 3
A59
+5V
+3.3V
+V I/O (+5 V or +3.3 V)
B57
GND22
Ground
A60
REQ64
Request 64 bit ???
B58
AD1
Address/Data 1
A61
VCC11
+5 VDC
B59
VCC08
+5 VDC
A62
VCC13
+5 VDC
B60
ACK64
Acknowledge 64 bit ???
B61
VCC10
+5 VDC
A63
GND
Ground
B62
VCC12
+5 VDC
A64
C/BE[7]#
Command, Byte Enable 7
A65
C/BE[5]#
Command, Byte Enable 5
B63
RES
Reserved
A66
+5V
+3.3V
+V I/O (+5 V or +3.3 V)
B64
GND
Ground
A67
PAR64
Parity 64 ???
B65
C/BE[6]#
Command, Byte Enable 6
A68
AD62
Address/Data 62
B66
C/BE[4]#
Command, Byte Enable 4
A69
GND
Ground
B67
GND
Ground
A70
AD60
Address/Data 60
B68
AD63
Address/Data 63
A71
AD58
Address/Data 58
B69
AD61
Address/Data 61
A72
GND
Ground
B70
+5V
+3.3V
+V I/O (+5 V or +3.3 V)
A73
AD56
Address/Data 56
B71
AD59
Address/Data 59
A74
AD54
Address/Data 54
B72
AD57
Address/Data 57
A75
+5V
+3.3V
+V I/O (+5 V or +3.3 V)
B73
GND
Ground
A76
AD52
Address/Data 52
B74
AD55
Address/Data 55
A77
AD50
Address/Data 50
B75
AD53
Address/Data 53
A78
GND
Ground
B76
GND
Ground
A79
AD48
Address/Data 48
B77
AD51
Address/Data 51
A80
AD46
Address/Data 46
B78
AD49
Address/Data 49
A81
GND
Ground
B79
+5V
+3.3V
+V I/O (+5 V or +3.3 V)
A82
AD44
Address/Data 44
B80
AD47
Address/Data 47
A83
AD42
Address/Data 42
B81
AD45
Address/Data 45
A84
+5V
+3.3V
+V I/O (+5 V or +3.3 V)
B82
GND
Ground
A85
AD40
Address/Data 40
B83
AD43
Address/Data 43
A86
AD38
Address/Data 38
B84
AD41
Address/Data 41
A87
GND
Ground
B85
GND
Ground
A88
AD36
Address/Data 36
B86
AD39
Address/Data 39
A89
AD34
Address/Data 34
B87
AD37
Address/Data 37
A90
GND
Ground
B88
+5V
+3.3V
+V I/O (+5 V or +3.3 V)
A91
AD32
Address/Data 32
B89
AD35
Address/Data 35
A92
RES
Reserved
B90
AD33
Address/Data 33
A93
GND
Ground
B91
GND
Ground
A94
RES
Reserved
B92
RES
Reserved
