HUAWEI ME906s LTE M.2 Module
Hardware Guide
Description of the Application Interfaces
Issue 05 (2019-03-25)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
40
In the M.2 spec, the 4 pins are defined as shown in Table 3-13 .
Table 3-13
List of Config pins
Config_0
(Pin 21)
Config_1
(Pin 69)
Config_2
(Pin 75)
Config_3
(Pin 1)
Module type and
Main host interface
Port
Configuration
NC
Ground
Ground
Ground
WWAN-SSIC
0
The GPIO0
–7 pins have configurable assignments. There are 4 possible functional
pin out configurations. These 4 configurations are called Port Config 0
–3. In each
Port Configuration each GPIO is defined as a specific functional pin. The GPIO pin
assignment can be seen in Table 3-14 . ME906s supports Config 0. But the audio
function is not implemented in ME906s.
Table 3-14
GPIO pin function assignment per port configuration (not supported by
default)
GPIO Pin
Port Config 0 (GNSS+Audio ver1)
GPIO_0 (Pin40)
GNSS_SCL
GPIO_1 (Pin 42)
GNSS_SDA
GPIO_2 (Pin 44)
GNSS_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 Reserved Pins
The module provides some reserved pins. All of reserved pins cannot be used by the
customer.
All of them should be Not Connected (NC).
If the customer wants to
have other special functions, please contact us.
Table 3-15
List of reserved pins
Pin
No.
Pin Name
Pad
Type Description
Parameter
Min.
(V)
Typ.
(V)
Max.
(V)
Comments
20, 22,
24, 28
Reserved
-
Reserved for future
use, please keep it not
connected in the host
side.
-
-
-
-
-