User's Manual

LE920 Hardware User Guide
1vv0301026 Rev.8 2015-01-03
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Reserved. Page 31 of 88
4.3.1. Shutdown by Software Command
LE920 can be shut down by a software command.
When a shutdown command is sent, LE920 goes into the finalization state and finally will
shut down PWRMON at the end of this state.
The duration of the finalization state can differ according to the situation in which the LE920
is, so a value cannot be defined.
Normally it will be more than15 seconds after sending a shutdown command, DTE should
monitor the status of PWRMON to observe the actual power off.
TIP:
To check if the device has powered off, hardware line PWRMON must be monitored. When
PWRMON goes low, the device has powered off.