Telit Wireless Solutions LM940 - Page 40

LM940 Hardware Design Guide
1VV0301352 Rev. 18 Page 40 of 75 2022-01-04
Not Subject to NDA
6.4.1. Graceful Reset
To gracefully restart the LM940 module, AT#REBOOT AT command must be sent via a
USB communication.
Figure 10: Graceful Reset by AT#REBOOT
6.4.2. Unconditional Hardware Reset
To unconditionally restart the LM940 module, the SYSTEM_RESET_N pin must be
asserted low more than 1 seconds and then released.
Figure 11: Unconditional Hardware Reset by SYSTEM_RESET_N Pad
Note: The Unconditional Hardware Reset must be used only as an
emergency exit procedure, and not as a normal power-off operation.