L830-EA M.2 Module Hardware User Manual
Page 26 of 45
Figure 5- 2 Power off Timing Control Diagram
5.2.1.3 The Recommended Design of Power on/off
The recommended design of FUL_CARD_POWER_OFF# signal is as follows:
Figure 5- 3 Recommended Design of FUL_CARD_POWER_OFF# Signal
5.2.2 RESET Signal
L830-EA M.2 wireless modules support external reset function. It is feasible to reset the module back to
the original state by the Reset Signal.
When setting the Reset Signal low for 100ms, the module will be reset and restarted. When the user uses
the Reset function, the PMU inside the module will not lose power.
Note: Reset signal is a sensitive signal line. In designing PCB layout, please keep the line away from RF
interference, and make it well wrapped with ground wire. And it is advised to add an anti-shaking
capacitor at the place close to the module end. At the same time; Reset_N signal line shall avoid the PCB
edge and the surface, then reset the ESD can be avoided.
The timing sequence requirements of its pulse are as follows:
Parameters
Condition
Minimum Value Typical Value
Maximum Value
Unit
Pulse Width
Reset
7
100
1000
ms
Recommended design:
