Huawei MU736 Hardware Manual page 21

HUAWEI MU736 HSPA+ M.2 Module
Hardware Guide
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Table 3-3 lists the pins on the signal control interface.
Table 3-3 Pins on the signal control interface
Pin Pin Name
No.
6 Power_On_Off
67 RESET#
10 LED#
8 W_DISABLE#
26 GPS_DISABLE#
23 Wake_On_WWAN#
25 BodySAR_N
66 SIM_DET
Issue 05 (2014-01-14)
BodySAR detection (BodySAR_N) pin
UIM detection (SIM_DET) pin
I/O Description
A single control to turn On/Off
WWAN. When It is High, WWAN is
powered on.
H: Power on
I
L: Power 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.
I System reset, active low
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.
WWAN disable function
H: WWAN function is determined by
I software AT command. Default
enabled.
L: WWAN function is turned off.
GPS disable function
H: GPS function is determined by
I
software AT command. Default
enabled.
L: GPS is turned off.
It is open drain, WWAN to wake up
O the host, active low.
Hardware pin for BodySAR detection.
H: No TX power backoff (default).
I
L: TX power backoff.
SIM hot swap detection pin.
Rising edge for insertion; falling edge
for removal.
I
H: SIM is present.
L: SIM is absent.
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Description of the Application Interfaces
DC Characteristics(V)
Min. Typ.
–0.3
1.8
–0.3
1.8
Open drain and a pull-up
resistor is required on the
host
–0.3
3.3
–0.3
3.3
Open drain and a pull-up
resistor is required on the
host
–0.3
1.8
–0.3
1.8
Max.
3.6
3.6
3.6
3.6
3.6
2.1
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