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HUAWEI MU736 HSPA+ M.2 Module
Hardware Guide
Table 3-1 Definitions of pins on the M.2 interface
Pin Name
Pin
No.
Normal
1
CONFIG_3
2
3.3V
3
Ground
4
3.3V
5
Ground
6
Power_On_Off
7
USB_D+
8
W_DISABLE#
9
USB_D-
10
LED#
11
Ground
12
Notch
13
Notch
14
Notch
15
Notch
16
Notch
17
Notch
18
Notch
19
Notch
Issue 05 (2014-01-14)
I/O
Description
Connected to Ground internally.
O
MU736 is configured as WWAN-SSIC 0.
PI
Power supply
PI
Ground
PI
Power supply
PI
Ground
A single control to turn On/Off WWAN.
H: WWAN is powered on.
L: WWAN is powered off.
I
It is internally pulled to low.
It is 3.3 V tolerant but can be driven by
either 1.8 V or 3.3 V GPIO.
USB Data + defined in the USB 2.0
IO
Specification
WWAN disable function
H: WWAN function is determined by
I
software AT command. Default enabled.
L: WWAN function is turned off.
USB Data - defined in the USB 2.0
IO
Specification
It is an open drain, active low signal,
used to allow the M.2 card to provide
O
status indicators via LED devices that
will be provided by the system.
PI
Ground
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Description of the Application Interfaces
DC Characteristics (V)
Min.
-
3.135
-
3.135
-
–0.3
-
–0.3
-
Open drain and a pull-up
resistor is required on
the host
-
-
-
-
-
-
-
-
-
Typ.
Max.
0
-
3.3
4.4
0
-
3.3
4.4
0
-
1.8
3.6
-
-
3.3
3.6
-
-
0
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
14
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