32-bit PCI connector pinout

32-bit PCI connector pinout 32-bit PCI konnektörü ayak bağlantıları
Pin	Side B		Side A		Comments
1	−12V		TRST#		JTAG port pins (optional)
2	TCK		+12V
3	Ground		TMS
4	TDO		TDI
5	+5V		+5V
6	+5V		INTA#		Interrupt lines (open-drain)
7	INTB#		INTC#
8	INTD#		+5V
9	PRSNT1#		Reserved		Pulled low to indicate 7.5 or 25 W power required
10	Reserved		IOPWR		+5V or +3.3V
11	PRSNT2#		Reserved		Pulled low to indicate 7.5 or 15 W power required
12	Ground		Ground		Key notch for 3.3V-capable cards
13	Ground		Ground
14	Reserved		3.3Vaux		Standby power (optional)
15	Ground		RST#		Bus reset
16	CLK		IOPWR		33/66 MHz clock
17	Ground		GNT#		Bus grant from motherboard to card
18	REQ#		Ground		Bus request from card to motherboard
19	IOPWR		PME#		Power management event (optional) 3.3V, open drain, active low.[9]
20	AD[31]		AD[30]		Address/data bus (upper half)
21	AD[29]		+3.3V
22	Ground		AD[28]
23	AD[27]		AD[26]
24	AD[25]		Ground
25	+3.3V		AD[24]
26	C/BE[3]#		IDSEL
27	AD[23]		+3.3V
28	Ground		AD[22]
29	AD[21]		AD[20]
30	AD[19]		Ground
31	+3.3V		AD[18]
32	AD[17]		AD[16]
33	C/BE[2]#		+3.3V
34	Ground		FRAME#		Bus transfer in progress
35	IRDY#		Ground		Initiator ready
36	+3.3V		TRDY#		Target ready
37	DEVSEL#		Ground		Target selected
38	Ground		STOP#		Target requests halt
39	LOCK#		+3.3V		Locked transaction
40	PERR#		SMBCLK	SDONE	Parity error; SMBus clock or Snoop done (obsolete)
41	+3.3V		SMBDAT	SBO#	SMBus data or Snoop backoff (obsolete)
42	SERR#		Ground		System error
43	+3.3V		PAR		Even parity over AD[31:00] and C/BE[3:0]#
44	C/BE[1]#		AD[15]		Address/data bus (lower half)
45	AD[14]		+3.3V
46	Ground		AD[13]
47	AD[12]		AD[11]
48	AD[10]		Ground
49	M66EN	Ground	AD[09]
50	Ground		Ground		Key notch for 5V-capable cards
51	Ground		Ground
52	AD[08]		C/BE[0]#		Address/data bus (lower half)
53	AD[07]		+3.3V
54	+3.3V		AD[06]
55	AD[05]		AD[04]
56	AD[03]		Ground
57	Ground		AD[02]
58	AD[01]		AD[00]
59	IOPWR		IOPWR
60	ACK64#		REQ64#		For 64-bit extension; no connect for 32-bit devices.
61	+5V		+5V