Mini PCI is an alternate PCI implementation designed for small form factor. It´s specification is a sub-set of PCI standard using 100 pin (Type I/II) or 124 pin (Type III) connector.

Major differences from PCI standard:

  • form factor of the card and card-system interconnection, that is, the smaller physical size
  • the use of standard sideband signals for audio and communications
  • support of the CLKRUN# signal defined in the PCI Mobile Design Guide
  • no support for optional JTAG signals, nor for the 64-bit PCI extension defined in the PCI Local Bus Specification

Mini PCI Card Type I/II System Connector Pinout

PinSignalPinSignalPinSignalPinSignal
1INTB#25V51SERR#52STOP#
33.3V4INTA#53GROUND543.3V
5RESERVED6RESERVED55PERR#56DEVSEL#
7GROUND83.3VAUX57C/BE[1]#58GROUND
9CLK10RST#59AD[14]60AD[15]
11GROUND123.3V61GROUND62AD[13]
13REQ#14GNT#63AD[12]64AD[11]
153.3V16GROUND65AD[10]66GROUND
17AD[31]18PME#67GROUND68AD[09]
19AD[29]20RESERVED69AD[08]70C/BE[0]#
21GROUND22AD[30]71AD[07]723.3V
23AD[27]243.3V733.3V74AD[06]
25AD[25]26AD[28]75AD[05]76AD[04]
27RESERVED28AD[26]77RESERVED78AD[02]
29C/BE[3]#30AD[24]79AD[03]80AD[00]
31AD[23]32IDSEL815V82RESERVED_WIP
33GROUND34GROUND83AD[01]84RESERVED_WIP
35AD[21]36AD[22]85GROUND86GROUND
37AD[19]38AD[20]87AC_SYNC88M66EN
39GROUND40PAR89AC_SDATA_IN90AC_SDATA_OUT
41AD[17]42AD[18]91AC_BIT_CLK92AC_CODEC_ID0#
43C/BE[2]#44AD[16]93AC_CODEC_ID1#94AC_RESET#
45IRDY#46GROUND95MOD_AUDIO_MON96RESERVED
473.3V48FRAME#97AUDIO_GND98GROUND
49CLKRUN#50TRDY#99SYS_AUDIO_OUT100SYS_AUDIO_IN

Mini PCI Card Type III System Connector Pinout

PinSignalPinSignalPinSignalPinSignal
1TIP2RING633.3V64FRAME#
 Key Key65CLKRUN#66TRDY#
38PMJ-348PMJ-167SERR#68STOP#
58PMJ-668PMJ-269GROUND703.3V
78PMJ-788PMJ-471PERR#72DEVSEL#
98PMJ-8108PMJ-573C/BE[1]#74GROUND
11LED1_GRNP12LED2_YELP75AD[14]76AD[15]
13LED1_GRNN14LED2_YELN77GROUND78AD[13]
15CHSGND16RESERVED79AD[12]80AD[11]
17INTB#185V81AD[10]82GROUND
193.3V20INTA#83GROUND84AD[09]
21RESERVED22RESERVED85AD[08]86C/BE[0]#
23GROUND243.3VAUX87AD[07]883.3V
25CLK26RST#893.3V90AD[06]
27GROUND283.3V91AD[05]92AD[04]
29REQ#30GNT#93RESERVED94AD[02]
313.3V32GROUND95AD[03]96AD[00]
33AD[31]34PME#975V98RESERVED_WIP
35AD[29]36RESERVED99AD[01]100RESERVED_WIP
37GROUND38AD[30]101GROUND102GROUND
39AD[27]403.3V103AC_SYNC104M66EN
41AD[25]42AD[28]105AC_SDATA_IN106AC_SDATA_OUT
43RESERVED44AD[26]107AC_BIT_CLK108AC_CODEC_ID0#
45C/BE[3]#46AD[24]109AC_CODEC_ID1#110AC_RESET#
47AD[23]48IDSEL111MOD_AUDIO_MON112RESERVED
49GROUND50GROUND113AUDIO_GND114GROUND
51AD[21]52AD[22]115SYS_AUDIO_OUT116SYS_AUDIO_IN
53AD[19]54AD[20]117SYS_AUDIO_OUT GND118SYS_AUDIO_IN GND
55GROUND56PAR119AUDIO_GND120AUDIO_GND
57AD[17]58AD[18]121RESERVED122MPCIACT#
59C/BE[2]#60AD[16]123VCC5VA1243.3VAUX
61IRDY#62GROUND    
8PMJ = 8 position modular jack connector pin
100 pin Mini-PCI Type I/II (Amp 353183-8) connector layout
100 pin Mini-PCI Type I/II (Amp 353183-8) connector
at the system board
124 pin Mini-PCI Type III (Amp 1318228-1) connector layout
124 pin Mini-PCI Type III (Amp 1318228-1) connector
at the system board
According to 4 reports in our database (4 positive and 0 negative) this pinout should be correct.

Is this pinout
Mini PCI bus visual pinout:
Mini PCI bus diagram
click to enlarge
Source(s) of this and additional information: Mini PCI Specification. Revision 1.0
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