HUAWEI MU736 HSPA+ M.2 Module
Hardware Guide
Description of the Application Interfaces
Issue 05 (2014-01-14)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
29
3.4.5
W_DISABLE# Pin
MU736 provides a hardware pin (W_DISABLE#) to enable/disable the radio function.
This function also can be implemented by AT command.
Table 3-6
Function of the W_DISABLE# pin
No.
W_DISABLE#
Function
1
Low
WWAN function will be turned off.
2
High
WWAN function is determined by software AT
command. Default enabled.
3
Floating
WWAN function is determined by software AT
command. Default enabled.
Figure 3-16
Connections of the W_DISABLE# pin
Module
(Modem)
BB Chip
1.8V
W_DISABLE#
VCC From Host
10 kΩ
Host
It is recommended not to add a diode on the W_DISABLE# pin outside the MU736
module.
3.4.6
GPS_DISABLE# Pin
MU736 provides a hardware pin (GPS_DISABLE#) to enable/disable the GPS
function.
Table 3-7
Function of the GPS_DISABLE# pin
No.
GPS_DISABLE#
Function
1
Low
GPS function is disabled.
2
High
GPS function is determined by software AT
command. Default enabled.