3 Application Interfaces
31
After the PWRKEY signal is released, the next power-on trigger can be performed at least 5
seconds later. This interval is reserved for the module to perform the shutdown process and
release the power of the peripheral circuit connecting with module interface.
3.2.3 Reset
Background
When the module needs to be restored to its initial state, it can be reset.
The module supports hardware reset and software reset.
⚫ Hardware reset
The hardware reset timing sequence is as follows.
Figure 9. Hardware reset sequence
Set RESET_N to low level and hold for at least 100ms, then release. Similar to the power
on/off control circuit, the reset reference circuit is shown in the following figure, and the
RESET_N pin can be controlled using the OC/OD driver circuit or the button.
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