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.
38
The GPIO0~7 pins have configurable assignments. There are 4 possible functional
pin out configurations. These 4 configurations are called Port Config0~3. In each Port
Configuration each GPIO is defined as a specific functional pin. The GPIO pin
assignment can see in Table 3-14 . MU736 supports Config0. But the audio function is
not implemented in MU736.
Table 3-14
GPIO Pin Function Assignment per Port Configuration
GPIO Pin
Port Config0 (GNSS+Audio ver1)
GPIO_0 (Pin 40)
GNSS_SCL
GPIO_1 (Pin 42)
GNSS_SDA
GPIO_2 (Pin 44)
GNSS_I2C_IRQ
GPIO_3 (Pin 46)
SYSCLK
GPIO_4 (Pin 48)
TX_Blanking
GPIO_5 (Pin 20)
Audio_0 (not supported )
GPIO_6 (Pin 22)
Audio_1 (not supported)
GPIO_7 (Pin 24)
Audio_2 (not supported)
3.9 NC Pins
The module has some NC pins. All of NC pins are not connected in the module.
Table 3-15
List of NC pins
Pin No.
Pin Name
I/O
Description
DC Characteristics(V)
Min.
Typ.
Max.
28, 29, 31, 35, 37, 38,
41, 43, 47, 49, 50, 52,
53, 54, 55, 56, 58, 68
NC
-
Not Connected
-
-
-
3.10 RF Antenna Interface
3.10.1
RF Connector location
MU736 module provides 2 antenna connectors for connecting the external antennas.