PCI-104 Bus Pinout




The pinout listed in the table below is used as the PCI interface on PC/104-Plus boards as the J3/P3 connector, and with PCI-104 boards [again as J3/P3].
The same connector and signal assignments are used for the PCI interface on the PCI/104-Express board

Only 33MHz 32-bit PCI is supported, the 64-bit Extension of PCI is not supported. 66MHz may be supported but was not tested as part of the specification.
Check the M66EN pin to determine if the board will support the 66MHz bus speed.





PCI-104 Connector Pinout
Pin A B C D
1 GND Reserved +5 AD00
2 VI/O AD02 AD01 +5V
3 AD05 GND AD04 AD03
4 C/BE0# AD07 GND AD06
5 GND AD09 AD08 GND
6 AD11 VI/O AD10 M66EN
7 AD14 AD13 GND AD12
8 +3.3V C/BE1# AD15 +3.3V
9 SERR# GND Reserved PAR
10 GND PERR# +3.3V Reserved
11 STOP# +3.3V LOCK# GND
12 +3.3V TRDY# GND DEVSEL#
13 FRAME# GND IRDY# +3.3V
14 GND AD16 +3.3V C/BE2#
15 AD18 +3.3V AD17 GND
16 AD21 AD20 GND AD19
17 +3.3V AD23 AD22 +3.3V
18 IDSEL0 GND IDSEL1 IDSEL2
19 AD24 C/BE3# VI/O IDSEL3
20 GND AD26 AD25 GND
21 AD29 +5V AD28 AD27
22 +5V AD30 GND AD31
23 REQ0# GND REQ1# VI/O
24 GND REQ2# +5V GNT0#
25 GNT1# VI/O GNT2# GND
26 +5V CLK0 GND CLK1
27 CLK2 +5V CLK3 GND
28 GND INTD# +5V RST#
29 +12V INTA# INTB# INTC#
30 -12V REQ3# GNT3# GND




PC-104Plus adds an additional connector; J3 which carries the PCI bus signals.
Refer to the PCI Bus page for a bus description and information.

Back to the main PC104 bus page for a description,
including connector manufacturers, IC manufacturers and links.

Navigation: Engineering Home > Interface Buses > Back-Palne Buses > PCI/104 Format > PCI/104 signal assignments.



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Modified 3/05/12
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