Fibocom FM101-GL - Module Reset

3 Application Interface
Copyright © Fibocom Wireless Inc. 31
+3.3V
tpd
RESET#
Module State
FinalizationActivation
FCPO#
tsd
OFF
AT+CPWROFF
toff
Figure 8. Recommend control power off timing
3.3.3 Module Reset
The FM101 module can reset to its initial status by pulling down the RESET# signal for more
than 20ms, and module will restart after RESET# signal is released. When customer
executes RESET# function, the PMU power will be turned off. The recommended circuit
design is shown in the Figure 9:
Index
Min.
Recommende
d
Max.
Comment
t
pd
10ms
100ms
-
The time for +3.3V delay time of shutdown. If +
3.3V keeps constant supply, the delay time can be
ignored.
t
off
20ms
20ms
-
The time difference between the RESET # signal
and the FULL_CARD_POWER_OFF # signal.
t
sd
0
-
5s
Waiting time from AP send AT+CPWROFF to AP
receive OK