User's Manual

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H380-GL Hardware User Manual Page
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3.3 Control Signal
H380 module provides 2 channel control signals for start-up/shutdown and reset operations of the module,
and the pins are defined as follows:
Pin
Pin Name
I/O
Reset Value
Functions
Type
6
FUL_CARD_POWE
R_OFF#
I
PU
Start-up/shutdown signal, internal
200KΩ pull-up resistance
High level start-up, low level or floating
shutdown
3.3/1.8V
67
RESET#
I
PU
Reset signal, internal 200KΩ pull-up
resistance
Low-active
3.3/1.8V
3.3.1 Module Start-up
3.3.1.1 Start-up Circuit
The module start-up pin FUL_CARD_POWER_OFF# requires external pull-up 18.V voltage (VDD_1V8
provided externally), and the module has two start-up modes:

AP (Application Processor) controls the module start-up, and the circuit design is shown in
Figure 3-4:
 Automatically start-up when powered on, and the circuit design is shown in Figure 3-5:
Figure 3- 4 Circuit for Module Start-up Controlled by AP