CompactPCI P1 Pinout

The CompactPCI pinout for P1 [J1] is provided below. cPCI is electrically identical to the PCI specification, it uses the same signals. However some signals have been added to the cPCI standard in addition to what the PCI specification called out. cPCI uses pin/socket connectors, while PCI uses Finger/slot connectors. A # symbol at the end of a signal name 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. The pin descriptions which indicate a Key is not a pin, but a male or female void [key]. The V(I/O) pins are un-named in this table. In a +5 volt system the V(I/O) pins are +5volts, in a +3.3 volt system the V(I/O) pins are +3.3 volts. The pin out for the P2 connector is listed on the cPCI P2 Pinout page.

**cPCI P1 Connector Signal Assignments**
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
25	GND	5V	REQ64#	ENUM#	3.3V	5V	GND
24	GND	AD[1]	5V	V(I/O)	AD[0]	ACK64#	GND
23	GND	3.3V	AD[4]	AD[3]	5V	AD[2]	GND
22	GND	AD[7]	GND	3.3V	AD[6]	AD[5]	GND
21	GND	3.3V	AD[9]	AD[8]	M66EN	C/BE[0]#	GND
20	GND	AD[12]	GND	V(I/O)	AD[11]	AD[10]	GND
19	GND	3.3V	AD[15]	AD[14]	GND	AD[13]	GND
18	GND	SERR#	GND	3.3V	PAR	C/BE[1]#	GND
17	GND	3.3V	SDONE	SBO#	GND	PERR#	GND
16	GND	DEV SEL#	GND	V(I/O)	STOP#	LOCK#	GND
15	GND	3.3V	FRAME#	IRDY#	GND	TRDY#	GND
14	KEY	KEY	KEY	KEY	KEY	KEY	KEY
13	KEY	KEY	KEY	KEY	KEY	KEY	KEY
12	KEY	KEY	KEY	KEY	KEY	KEY	KEY
11	GND	AD[18]	AD[17]	AD[16]	GND	C/BE[2]#	GND
10	GND	AD[21]	GND	3.3V	AD[20]	AD[19]	GND
9	GND	C/BE[3]#	IDSEL	AD[23]	GND	AD[22]	GND
8	GND	AD[26]	GND	V(I/O)	AD[25]	AD[24]	GND
7	GND	AD[30]	AD[29]	AD[28]	GND	AD[27]	GND
6	GND	REQ#	GND	3.3V	CLK	AD[31]	GND
5	GND	BRSVP1A5	BRSVP1B5	RST#	GND	GNT#	GND
4	GND	BRSVP1A4	GND	V{I/O)	INTP	INTS	GND
3	GND	INTA#	INTB#	INTC#	5V	INTD#	GND
2	GND	TCK	5V	TMS	TDO	TDI	GND
1	GND	5V	-12V	TRST#	+12V	5V	GND

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. FutureBus connectors which also use 2mm style have a mating distance of 10mm, and are 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 connector; 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 manufacturers, and IC manufacturer links.

Design Key words: CompactPCI, Compact Peripheral Component Interface, cPCI, cPCI Pinouts, P1/J1 Pinout, Pin Outs, Signals, Pin Number, Assignment, Specification, Standard, Defined, Constraint, Properties, Lines, Data, Labels, 2mm Connector, Signal Name, 5-row, Description, Embedded Parallel Computer Bus


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