PCI总线引脚定义

A1

TRST

Test Logic Reset

A2

+12V

+12 VDC

A3

TMS

Test Mde Select

A4

TDI

Test Data Input

A5

+5V

+5 VDC

A6

INTA

Interrupt A

A7

INTC

Interrupt C

A8

+5V

+5 VDC

A9

RESV01

Reserved VDC

A10

+5V

+3.3V

Signal Rail

+V I/O (+5 V or +3.3 V)

A11

RESV03

Reserved VDC

A12

GND03

(OPEN)

(OPEN)

Ground or Open (Key)

A13

GND05

(OPEN)

(OPEN)

Ground or Open (Key)

A14

RESV05

Reserved VDC

A15

RESET

Reset

A16

+5V

+3.3V

Signal Rail

+V I/O (+5 V or +3.3 V)

A17

GNT

Grant PCI use

A18

GND08

Ground

A19

RESV06

Reserved VDC

A20

AD30

Address/Data 30

A21

+3.3V01

+3.3 VDC

A22

AD28

Address/Data 28

A23

AD26

Address/Data 26

A24

GND10

Ground

A25

AD24

Address/Data 24

A26

IDSEL

Initialization Device Select

A27

+3.3V03

+3.3 VDC

A28

AD22

Address/Data 22

A29

AD20

Address/Data 20

A30

GND12

Ground

A31

AD18

Address/Data 18

A32

AD16

Address/Data 16

A33

+3.3V05

+3.3 VDC

A34

FRAME

Address or Data phase

A35

GND14

Ground

A36

TRDY

Target Ready

A37

GND15

Ground

A38

STOP

Stop Transfer Cycle

A39

+3.3V07

+3.3 VDC

A40

SDONE

Snoop Done

A41

SBO

Snoop Backoff

A42

GND17

Ground

A43

PAR

Parity

A44

AD15

Address/Data 15

A45

+3.3V10

+3.3 VDC

A46

AD13

Address/Data 13

A47

AD11

Address/Data 11

A48

GND19

Ground

A49

AD9

Address/Data 9

A52

C/BE0

Command, Byte Enable 0

A53

+3.3V11

+3.3 VDC

A54

AD6

Address/Data 6

A55

AD4

Address/Data 4

A56

GND21

Ground

A57

AD2

Address/Data 2

A58

AD0

Address/Data 0

A59

+5V

+3.3V

Signal Rail

+V I/O (+5 V or +3.3 V)

A60

REQ64

Request 64 bit ???

A61

VCC11

+5 VDC

A62

VCC13

+5 VDC

A63

GND

Ground

A64

C/BE[7]#

Command, Byte Enable 7

A65

C/BE[5]#

Command, Byte Enable 5

A66

+5V

+3.3V

Signal Rail

+V I/O (+5 V or +3.3 V)

A67

PAR64

Parity 64 ???

A68

AD62

Address/Data 62

A69

GND

Ground

A70

AD60

Address/Data 60

A71

AD58

Address/Data 58

A72

GND

Ground

A73

AD56

Address/Data 56

A74

AD54

Address/Data 54

A75

+5V

+3.3V

Signal Rail

+V I/O (+5 V or +3.3 V)

A76

AD52

Address/Data 52

A77

AD50

Address/Data 50

A78

GND

Ground

A79

AD48

Address/Data 48

A80

AD46

Address/Data 46

A81

GND

Ground

A82

AD44

Address/Data 44

A83

AD42

Address/Data 42

A84

+5V

+3.3V

Signal Rail

+V I/O (+5 V or +3.3 V)

A85

AD40

Address/Data 40

A86

AD38

Address/Data 38

A87

GND

Ground

A88

AD36

Address/Data 36

A89

AD34

Address/Data 34

A90

GND

Ground

A91

AD32

Address/Data 32

A92

RES

Reserved

A93

GND

Ground

A94

RES

Reserved

B1

-12V

-12 VDC

B2

TCK

Test Clock

B3

GND

Ground

B4

TDO

Test Data Output

B5

+5V

+5 VDC

B6

+5V

+5 VDC

B7

INTB

Interrupt B

B8

INTD

Interrupt D

B9

PRSNT1

Reserved

B10

RES

+V I/O (+5 V or +3.3 V)

B11

PRSNT2

??

B12

GND

(OPEN)

(OPEN)

Ground or Open (Key)

B13

GND

(OPEN)

(OPEN)

Ground or Open (Key)

B14

RES

Reserved VDC

B15

GND

Reset

B16

CLK

Clock

B17

GND

Ground

B18

REQ

Request

B19

+5V

+3.3V

Signal Rail

+V I/O (+5 V or +3.3 V)

B20

AD31

Address/Data 31

B21

AD29

Address/Data 29

B22

GND

Ground

B23

AD27

Address/Data 27

B24

AD25

Address/Data 25

B25

+3.3V

+3.3VDC

B26

C/BE3

Command, Byte Enable 3

B27

AD23

Address/Data 23

B28

GND

Ground

B29

AD21

Address/Data 21

B30

AD19

Address/Data 19

B31

+3.3V

+3.3 VDC

B32

AD17

Address/Data 17

B33

C/BE2

Command, Byte Enable 2

B34

GND13

Ground

B35

IRDY

Initiator Ready

B36

+3.3V06

+3.3 VDC

B37

DEVSEL

Device Select

B38

GND16

Ground

B39

LOCK

Lock bus

B40

PERR

Parity Error

B41

+3.3V08

+3.3 VDC

B42

SERR

System Error

B43

+3.3V09

+3.3 VDC

B44

C/BE1

Command, Byte Enable 1

B45

AD14

Address/Data 14

B46

GND18

Ground

B47

AD12

Address/Data 12

B48

AD10

Address/Data 10

B49

GND20

Ground

B50

(OPEN)

GND

(OPEN)

Ground or Open (Key)

B51

(OPEN)

GND

(OPEN)

Ground or Open (Key)

B52

AD8

Address/Data 8

B53

AD7

Address/Data 7

B54

+3.3V12

+3.3 VDC

B55

AD5

Address/Data 5

B56

AD3

Address/Data 3

B57

GND22

Ground

B58

AD1

Address/Data 1

B59

VCC08

+5 VDC

B60

ACK64

Acknowledge 64 bit ???

B61

VCC10

+5 VDC

B62

VCC12

+5 VDC

B63

RES

Reserved

B64

GND

Ground

B65

C/BE[6]#

Command, Byte Enable 6

B66

C/BE[4]#

Command, Byte Enable 4

B67

GND

Ground

B68

AD63

Address/Data 63

B69

AD61

Address/Data 61

B70

+5V

+3.3V

Signal Rail

+V I/O (+5 V or +3.3 V)

B71

AD59

Address/Data 59

B72

AD57

Address/Data 57

B73

GND

Ground

B74

AD55

Address/Data 55

B75

AD53

Address/Data 53

B76

GND

Ground

B77

AD51

Address/Data 51

B78

AD49

Address/Data 49

B79

+5V

+3.3V

Signal Rail

+V I/O (+5 V or +3.3 V)

B80

AD47

Address/Data 47

B81

AD45

Address/Data 45

B82

GND

Ground

B83

AD43

Address/Data 43

B84

AD41

Address/Data 41

B85

GND

Ground

B86

AD39

Address/Data 39

B87

AD37

Address/Data 37

B88

+5V

+3.3V

Signal Rail

+V I/O (+5 V or +3.3 V)

B89

AD35

Address/Data 35

B90

AD33

Address/Data 33

B91

GND

Ground

B92

RES

Reserved

B93

RES

Reserved

B94

GND

Ground