Mini-PCI Bus 124-Pin Pinout

The MinPCI bus is used in Laptop and Note-Book computers.
Mini-PCI uses a reduced pinout than the normal PCI bus used in Desk-top computers. There are 2 different connector pinouts defined in the Mini-PCI specification, one for type I and type II, and another connector for type III. The Mini-PCI standard is a Parallel bus standard based on the Parallel PCI bus standard, which is different than the ExpressPCI bus standard.

**MiniPCI Pinout, 124 Pins; Type III Connector**
PIN #	Signal	Description	PIN #	Signal	Description
1	TIP	1 Conductor, local loop wire pair	63	3.3V	3.3 V Supply voltage
-	Key	-	64	FRAME#	Indicates Bulk Transfer
2	RING	1 Conductor, local loop wire pair	65	CLKRUN#	Stops clock on certain mobile PCI devices
3	8PMJ-3	Pin 3 of an 8-pin modular jack	66	TRDY#	Target Ready
4	8PMJ-1	Pin 1 of an 8-pin modular jack	67	SERR#	Catastrophic system error
5	8PMJ-6	Pin 6 of an 8-pin modular jack	68	STOP#	Target wishes to end transfer
6	8PMJ-2	Pin 2 of an 8-pin modular jack	69	GROUND	Ground
7	8PMJ-7	Pin 7 of an 8-pin modular jack	70	3.3V	3.3 V Supply voltage
8	8PMJ-4	Pin 4 of an 8-pin modular jack	71	PERR#	Indicates Parity Error
9	8PMJ-8	Pin 8 of an 8-pin modular jack	72	DEVSEL#	PCI Device Select
10	8PMJ-5	Pin 5 of an 8-pin modular jack	73	C/BE[1]#	Byte Enable
11	LED1_GRNP	Interface for external LEDs	74	GROUND	Ground
12	LED2_YELP	Interface for external LEDs	75	AD[14]	Multiplexed Address/Data Bus
13	LED1_GRNN	RF Silent input	76	AD[15]	Multiplexed Address/Data Bus
14	LED2_YELN	Interface for external LEDs	77	GROUND	Ground
15	CHSGND	Chassis Ground	78	AD[13]	Multiplexed Address/Data Bus
16	RESERVED	-	79	AD[12]	Multiplexed Address/Data Bus
17	INTB#	Interrupt Request B	80	AD[11]	Multiplexed Address/Data Bus
18	5V	5 V Supply voltage	81	AD[10]	Multiplexed Address/Data Bus
19	3.3V	3.3 V Supply voltage	82	GROUND	Ground
20	INTA#	Interrupt Request A	83	GROUND	Ground
21	RESERVED	-	84	AD[09]	Multiplexed Address/Data Bus
22	RESERVED	-	85	AD[08]	Multiplexed Address/Data Bus
23	GROUND	Ground	86	C/BE[0]#	Byte Enable
24	3.3VAUX	3.3 V supply-uninterrupted	87	AD[07]	Multiplexed Address/Data Bus
25	CLK	PCI Clock	88	3.3V	3.3 V Supply voltage
26	RST#	PCI Reset	89	3.3V	3.3 V Supply
27	GROUND	Ground	90	AD[06]	Multiplexed Address/Data Bus
28	3.3V	3.3 V Supply voltage	91	AD[05]	Multiplexed Address/Data Bus
29	REQ#	PCI Bus Request	92	AD[04]	Multiplexed Address/Data Bus
30	GNT#	PCI Bus Grant	93	RESERVED	-
31	3.3V	3.3 V Supply voltage	94	AD[02]	Multiplexed Address/Data Bus
32	GROUND	Ground	95	AD[03]	Multiplexed Address/Data Bus
33	AD[31]	Multiplexed Address/Data Bus	96	AD[00]	Multiplexed Address/Data Bus
34	PME#	Power Management Event	97	5V	5 V Supply voltage
35	AD[29]	Multiplexed Address/Data Bus	98	RESERVED_WIP5	-
36	RESERVED	-	99	AD[01]	Multiplexed Address/Data Bus
37	GROUND	Ground	100	RESERVED_WIP5	-
38	AD[30]	Multiplexed Address/Data Bus	101	GROUND	Ground
39	AD[27]	Multiplexed Address/Data Bus	102	GROUND	Ground
40	3.3V	3.3 V Supply voltage	103	AC_SYNC	AC97 Sync
41	AD[25]	Multiplexed Address/Data Bus	104	M66EN	Enables 66 MHz PCI bus
42	AD[28]	Multiplexed Address/Data Bus	105	AC_SDATA_IN	AC97 Data Input
43	RESERVED	-	106	AC_SDATA_OUT	AC97 Data Output
44	AD[26]	Multiplexed	107	AC_BIT_CLK	AC97 Bit Clock
45	C/BE[3]#	Byte Enable	108	AC_CODEC_ID0#	Identifier for AC97 CODEC
46	AD[24]	Multiplexed Address/Data Bus	109	AC_CODEC_ID1#	Identifier for AC97 CODEC
47	AD[23]	Multiplexed Address/Data Bus	110	AC_RESET#	AC97 Reset
48	IDSEL	Initialization Device Select	111	MOD_AUDIO_MON	Modern Audio Monitor
49	GROUND	Ground	112	RESERVED	-
50	GROUND	Ground	113	AUDIO_GND	Analog Ground for line-level audio
51	AD[21]	Multiplexed Address/Data Bus	114	GROUND	Ground
52	AD[22]	Multiplexed Address/Data Bus	115	SYS_AUDIO_OUT	Telephone Audio Out
53	AD[19]	Multiplexed Address/Data Bus	116	SYS_AUDIO_IN	Telephone Audio In
54	AD[20]	Multiplexed Address/Data Bus	117	SYS_AUDIO_OUT GND	Analog Ground for telephone audio
55	GROUND	Ground	118	SYS_AUDIO_IN GND	Analog Ground for telephone audio
56	PAR	Parity Bit	119	AUDIO_GND	Analog Ground for line-level audio
57	AD[17]	Multiplexed Address/Data Bus	120	AUDIO_GND	Analog Ground for line-level audio
58	AD[18]	Multiplexed Address/Data Bus	121	RESERVED	-
59	C/BE[2]#	Byte Enable	122	MPCIACT#	MiniPCI Function Active
60	AD[16]	Multiplexed Address/Data Bus	123	VCC5VA	5V Analog
61	IRDY#	Initiator Ready	124	3.3VAUX	3.3 V supply-uninterrupted
62	Ground	Ground	-	-	-

Back to the main MiniPCI Bus page, or Personal Computer bus page.

The Peripheral Component Interface 'PCI' Bus was originally developed as a local bus expansion for the PC (ISA) bus. The PCI spec defines the Electrical requirements for the interface. No bus terminations are specified, the bus relies on signal reflection to achieve level threshold. The first version of the PCI bus ran at 33MHz with a 32 bit bus (133MBps), the current version runs at 66MHz with a 64 bit bus. The PCI bus operates either synchronously or asynchronously with the mother board bus rate. While operating asynchronously the bus will operate at any frequency from 66MHz down to (and including) 0Hz. Flow control is added to allow the bus to operate with slower devices on the bus, allowing the bus to operate at their speed. PCI is an unterminated bus, the signal relay on signal reflections to attain there final value.

Engineering Design Key words: Peripheral Component Interface, PCI, MiniPCI, PCI Parallel Bus Pinout, Pin Description, Pin Outs, pinout, Connector, Signal Names, Pin-Names, Description, Peripheral Component Interface, Personal Computer Local Bus, LapTop, NoteBook.


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