Huawei MU736 - Page 14

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