Reset Signal - Fibocom L-831-EA User Manual

Figure 5- 3 the recommended design of FUL_CARD_POWER_OFF# signal

5.2.2 RESET Signal

L831-EA wireless module supports external reset function. The module can back to initial state through
Reset _N signal.
While the RESET# signal is active low and keep 100ms, the module will reset and restart. The internal
PMU cannot power cut while the clients execute the RESET function.
Note: Reset signal is sensitive signal line , while PCB layout, please keep it away from RF interference,
add the surrounding processing and recommend to decouple capacitor near the module. Don't layout the
Reset signal in PCB edge or surface to avoid ESD causing system reset.
The requirements of Pulse Timing as listed below:
Parameters Condition
Pulse Width Reset
The recommended design as follows:
L831-EA Module Hardware User Manual
Minimum
7
Figure5- 4 Recommended design of RESET# circuit
Typical Maximum
100 1000
Unit
ms
Page 27 of 43