一些基本知识
把之前发的基础知识转过来,这样连续性好。 承接服务:郴州电脑维修,笔记本电脑维修,显示器电脑维修,上门电脑维修,配件批发等。邓先生0735-2236120 13607358182
先看看mini PCI-e的定义，然后检测下，哪些针脚没信号
Mini PCI Express Bus Description
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. 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. MiniCard is used to implement both the 1x PCI Express Bus interface and a USB 2.0 interface.
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Mini PCI Express Bus Interface IC Manufacturers
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 page provides a comparison of Interface Switching levels for different types of electrical standards.
{Mini PCI Bus Index}
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Mini-PCI Express Online Standards and Specifications
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}
PICMG {PCI Industrial Computer Manufacturers Group}
{MiniCard Bus Index}
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Mini PCI Express Connector Manufacturers
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.
{MiniCard Bus Index}
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Mini PCI Express Pinout
The Mini-PCI Express 52-pin connector pin out is listed below. I still need to verify the pin out table for errors.
MiniCard PinoutPin #Signal NamePin #Signal Name
51Reserved52+3.3V
49Reserved50GND
47Reserved48+1.5V
45Reserved46LED_WPAN#
43Reserved44LED_WLAN#
41Reserved42LED_WWAN#
39Reserved40GND
37Reserved38USB_D+
35GND36USB_D-
33PETp034GND
31PETn032SMB_DATA
29GND30SMB_CLK
27GND28+1.5V
25PERp026GND
23PERn024+3.3Vaux
21GND22PERST#
19Reserved (UIM_C4)20Reserved
17Reserved (UIM_C8)18GND
Mechanical Key
15GND16UIM_VPP
13REFCLK+14UIM_RESET
11REFCLK-12UIM_CLK
9GND10UIM_DATA
7CLKREQ#8UIM_PWR
5Reserved61.5V
3Reserved4GND
1WAKE#23.3V