MiniCard For NoteBook Computers
[MiniCard Bus Description]
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[OnLine Mini PCI Express Standards] [Pinout]
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A Brief Description of the MiniCard interface. MiniCard is also called
Mini PCI Express bus [PCI= Peripheral Component Interface].
The Minicard is a small form factor board used to implement the PCI Express interface
on Notebook computers.
MiniCard is used to implement both the 1x PCI Express Bus interface and a
USB 2.0 interface.
The card size is 30mm wide by 50.95mm long by 5mm high.
The Minicard uses a 52-pin card edge connector, the card pins are fingers at the edge of the card.
Refer to the main PCI Express Bus for a list of
manufacturers producing interface IC's
Like other PC buses, there are no glue logic devices just ASICs and chip
sets in PCI Express; Similar to PCI.
Refer to the LVDS page for
additional information on the LVDS electrical interface.
This topic provides a comparison of Interface Switching
levels for different types of electrical standards.
PCI: The original specification 'Peripheral
Component Interface', [parallel interface]
PCI Express Bus: [used in desktop
computers, the physical layer is not compatible with the PCI bus]
PCIe Mini Card Electromechanical Specification [used in Notebook/Laptop
computers]
PCISIG {Peripheral Component
Interconnect - Special Interest Group}
A Mini-PCI Express connector accepts a 52-pin card edge with one key slot.
The Board has fingers at the card edge, the card key is an absence of fingers.
The Mini-PCI Express 52-pin connector pin out is listed below. I still need to verify the pin out table for errors.
Pin # | Signal name | Pin # | Signal name |
51 | Reserved | 52 | +3.3V |
49 | 50 | GND | |
47 | 48 | +1.5V | |
45 | 46 | LED_WPAN# | |
43 | 44 | LED_WLAN# | |
41 | 42 | LED_WWAN# | |
39 | 40 | GND | |
37 | 38 | USB_D+ | |
35 | GND | 36 | USB_D- |
33 | PETp0 | 34 | GND |
31 | PETn0 | 32 | SMB_DATA |
29 | GND | 30 | SMB_CLK |
27 | GND | 28 | +1.5V |
25 | PERp0 | 26 | GND |
23 | PERn0 | 24 | +3.3Vaux |
21 | GND | 22 | PERST# |
19 | Reserved (UIM_C4) | 20 | Reserved |
17 | Reserved (UIM_C8) | 18 | GND |
15 | GND | 16 | UIM_VPP |
13 | REFCLK+ | 14 | UIM_RESET |
11 | REFCLK- | 12 | UIM_CLK |
9 | GND | 10 | UIM_DATA |
7 | CLKREQ# | 8 | UIM_PWR |
5 | Reserved | 6 | 1.5V |
3 | Reserved | 4 | GND |
1 | WAKE# | 2 | 3.3V |
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