HUAWEI MU509-65 HSDPA LGA Module
Hardware Guide
Description of the Application Interfaces
Issue 01 (2016-04-08)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
33
Figure 3-15
WAKEUP_IN sequence
t us
Low
Low
High
Rising edge
Falling edge
WAKEUP_IN
the module status
Power on
Before power on
Forced sl eep status
Forced sl eep sta
Normal status
3.4.6 WAKEUP_OUT Pin
The WAKEUP_OUT pin is used to wake up the external system.
WAKEUP_OUT pin is low by default. When a phone call or an SMS is coming, the
MU509-65 module will output a high pulse which lasts for 1s.
Within the duration of the high pulse, if a new phone call or an SMS is coming, the
MU509-65 module will output the high pulse over again.
Figure 3-16
WAKEUP_OUT sequence
High
1s
Low
Low
Normal status
a phone call or an SMS
WAKEUP_OUT
the module status
Sleep status