L831-EA Module Hardware User Manual
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5.2 Power on/off and Reset Signal
L831-EA wireless module supports 2 control signals for the modules` power on/off and the reset
operation.
The definition of the pins as listed below:
Pin#
Pin Name
Electrical Level
Description
6
FUL_CARD_POWER_OFF#
CMOS 1.8V
Power on/off signal
67
RESET#
CMOS 1.8V
External reset signal input.
5.2.1 Power on/off Signal
5.2.1.1 Power on
Clients can pull up the FUL_CARD_POWER_OFF# signal while the module is power on, then the module
will turn on.
The Pulse Timing requirements as listed below:
Parameters
Condition
Minimum
Typical
Maximum
Unit
Pulse Width
Power on
20
100
ms
The Figure5- 1 shows the power_on timing control:
Figure5- 1 Power_on Timing Control
5.2.1.2 Power off
L831-EA module supports two powers off modes. Through the software modes to turn off the module in
general condition. If the system halted or happen exceptions, use the following hardware modes to turn
