CompactPCI P2 Pinout


cPCI P2 Signal Descriptions:

The CompactPCI pinout for P2 [J2] is provided below. cPCI is electrically identical to the PCI specification, it uses the same signals [not the same pinout].
However, some new signals have been added in addition to the PCI specification. cPCI uses pin/socket connectors, while PCI uses Finger/slot connectors.
The pin out for P2 is listed below, refer to the link for the P1 connector, listed on the cPCI P1 Pinout page.
The number sign in the pinout table below indicates that the signal’s asserted state occurs when it is at a low voltage.
The absence of a # symbol indicates that the signal is asserted at a high voltage [active high].
The V(I/O) pins are 5 volts in a +5 volt system or +3.3 volts in a +3.3 volt system.
The individual ground pins of rows 'Z' and 'F' have been combined in the table, to a single column.
Note when referring to the board, the signals are on the P2 connector, from the reference of the backplane it's the J2 connector.





cPCI P2 Connector Pin Out
Pin # Signal name Signal name Signal name Signal name Signal name Signal name Signal name
-- Row Z Row A Row B Row C Row D Row E Row F
22
GND
[Ground Pins]
GA4 GA3 GA2 GA1 GA0
GND
[Ground Pins]
21 CLK6 GND RSV RSV RSV
20 CLK5 GND RSV GND RSV
19 GND GND RSV RSV RSV
18 BRSVP2A18 BRSVP2B18 BRSVP2C18 GND BRSVP2E18
17 BRSVP2A17 GND PRST# REQ6# GNT6#
16 BRSVP2A16 BRSVP2B16 DEG# GND BRSVP2E16
15 BRSVP2A15 GND FAL# REQ5# GNT5#
14 AD[35] AD[34] AD[33] GND AD[32]
13 AD[38] GND V(I/O) AD[37] AD[36]
12 AD[42] AD[41] AD[40] GND AD[39]
11 AD[45] GND V(I/O) AD[44] AD[43]
10 AD[49] AD[48] AD[47] GND AD[46]
9 AD[52] GND V(I/O) AD[51] AD[50]
8 AD[56] AD[55] AD[54] GND AD[53]
7 AD[59] GND V(I/O) AD[58] AD[57]
6 AD[63] AD[62] AD[61] GND AD[60]
5 C/BE[5]# GND V(I/O) C/BE[4]# PAR64
4 V(I/O) BRSVP2B4 C/BE[7]# GND C/BE[6]#
3 CLK4 GND GNT3# REQ4# GNT4#
2 CLK2 CLK3 SYSEN# GNT2# REQ3#
1 CLK1 GND REQ1# GNT1# REQ2#




Connector Details:

cPCI uses 2mm 'Hard Metric'; IEC 1076-4-101, a number of different pin arrangements. Normally the outside Ground rows (which are compression pins) 'Z' and 'F' are not counted as pins. OEM pin numbering may be by cPCI or in accordance with IEC 61076-4-101 (which is reversed). The term "Hard Metric" only means that metric dimensions are preferred ~ with-out regard to inches.

cPCI 2mm connectors mating distances [12.50mm] matches the 96 pin DIN 41612 connectors used with other EuroCard packaging [IEC 273 or IEEE 1101, 1101.10], like VMEbus. However FutureBus connectors, which also use 2mm style has a mating distance of 10mm, and is not compatible with cPCI connectors.

The connector types below are counting signal pins (not the ground rows), as indicated on many data sheets:

Type A connector; 110 pins, Keyed (J1/J4),([25 rows x 5 columns] - [3 rows x 5 columns of Key])
Type B connector; 110 pins (J2/J5), [22 x 5]
Type B connector; 95 pins (J3), [19 x 5]. This is also used as P0 with VME64
Type C connector; 55 pins [11 x 5]
Type AB; 95, 110, or 125 pins

There are other types:
Type L connector; # contact cavities to accept power insert contacts
Type M connector; # contact cavities to accept power insert contacts/with half the connector having normal pins.

Back to the main CompactPCI [cPCI] page, which contain a description of the bus, connector manufacturer, and IC manufacturer links.

Editor note; these terms mean the same thing; CompactPCI, Compact Peripheral Component Interface, cPCI and are used interchangeably
[Description of an Embedded Parallel Computer Bus].


Navigation: Engineering Home > Interface Buses > Backplane Interface Standards > cPCI Board Standard > cPCI P2 Usage.


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Modified 6/13/15
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