PCI Expansion Bus Connectors

The expansion slot signals, voltages, and grounds are supplied through the bus connectors. The following table provides the pin assignments for the PCI expansion slots.

PCI Expansion Slot Pin Assignments

Pin

Signal

Pin

Signal

Pin

Signal

Pin

Signal

A1

Ground

B1

-12V

A32

AD16

B32

AD17

 

(TRST#)

 

 

 

 

 

 

A2

+12V

B2

Ground (TCK)

A33

+3.3V

B33

C/BE2#

A3

+5V (TMS)

B3

Ground

A34

FRAME#

B34

Ground

A4

+5V (TDI)

B4

no con (TDO)

A35

Ground

B35

IRDY#

A5

+5V

B5

+5V

A36

TRDY#

B36

+3.3V

A6

INTA#

B6

+5V

A37

Ground

B37

DEVSEL#

A7

INTC#

B7

INTB#

A38

STOP#

B38

Ground

A8

+5V

B8

INTD#

A39

+3.3V

B39

LOCK#

A9

Reserved

B9

PRSNT1#

A40

SDONE

B40

PERR#

A10

+5V (I/O)

B10

Reserved

A41

SBO#

B41

+3.3V

A11

Reserved

B11

PRSNT2#

A42

Ground

B42

SERR#

A12

Ground

B12

Ground

A43

PAR

B43

+3.3V

A13

Ground

B13

Ground

A44

AD15

B44

C/BE1#

A14

+3.3V aux

B14

Reserved

A45

+3.3V

B45

AD14

A15

RST#

B15

Ground

A46

AD13

B46

Ground

A16

+5V (I/O)

B16

CLK

A47

AD11

B47

AD12

A17

GNT#

B17

Ground

A48

Ground

B48

AD10

A18

Ground

B18

REQ#

A49

AD09

B49

Ground

A19

PME#

B19

+5V (I/O)

A50

Key

B50

Key

A20

AD30

B20

AD31

A51

Key

B51

Key

A21

+3.3V

B21

AD29

A52

C/BE0#

B52

AD08

A22

AD28

B22

Ground

A53

+3.3V

B53

AD07

A23

AD26

B23

AD27

A54

AD06

B54

+3.3V

A24

Ground

B24

AD25

A55

AD04

B55

AD05

A25

AD24

B25

+3.3V

A56

Ground

B56

AD03

A26

IDSEL

B26

C/BE3#

A57

AD02

B57

Ground

A27

+3.3V

B27

AD23

A58

AD00

B58

AD01

A28

AD22

B28

Ground

A59

+5V (I/O)

B59

+5V (I/O)

 

 

 

 

 

 

 

 

Connector Pin Assignments B-15

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Image 116
NEC SP B-Series manual PCI Expansion Bus Connectors, PCI Expansion Slot Pin Assignments, Connector Pin Assignments B-15