User Guide

LM960 HW Design Guide
1VV0301485 Rev. 15 Page 46 of 88 2020-08-13
Warning – Not following the recommended shut-down procedures
might damage the device and consequently void the warranty.
6.3.2. Fast Shutdown
For a quicker shutdown of the LM960 module, the host can use the fast shutdown
functionFast shutdown can be triggered by:
 AT command via USB
 GPIO
6.3.2.1. Fast Shutdown by AT command
Once AT#FASTSHDN command is sent through the USB port, the LM960 enters
finalization state, terminates active processes and preparing to safely turn off.
As shown in the diagram below, when the module is ready to be turned off, it will be
indicated via Shutdown Indicator.
One of GPIO lines can be configured as Shutdown Indicators function by means of AT
commands: please refer to the AT User Guide for more details about AT#FASTSHDN and
AT#SHDNIND.
Fast Shutdown by AT command
The DTE should monitor the status of Shutdown Indicator to proceed fast power-off.