Description Of The Application Interfaces; About This Chapter; Mini Pci Express Interface; Table 3-1 Pin Definitions Of The Mini Pci-E Interface - Huawei EM820W Hardware Manual

HUAWEI EM820W HSPA+ PC Embedded Module
Hardware Guide
3

Description of the Application Interfaces

3.1 About This Chapter

This chapter mainly describes the external application interfaces of the EM820W
module, including:

3.2 Mini PCI Express Interface

The EM820W has a standard Mini PCI Express interface, which consists of several
major signals, as shown in the following table.

Table 3-1 Pin definitions of the Mini PCI-E Interface

Definition of the EM820W Mini PCI Express pins
Pin
No.
1
Issue 01 (2010-12-09)
Mini PCI Express Interface
Power Sources and Grounds
Power Supply Time Sequence
USB Signals
USIM Signals
W_DISABLE# Signal
LED_WWAN# Signal
WAKE_NB_N Signal
NC Pins
Mini PCI
Express
Standard
Description
WAKE#
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Description of the Application Interfaces
HUAWEI Pin Additional
Description Description
WAKE_NB_N Open collector active
low signal. This signal
is used to wake up the
host.
Direction to
Module
Output
5