ME910C1 mPCIe HW Design Guide
1VV0301642 Rev. 2 Page 28 of 56 2022-01-14
Power OFF Procedure
To turn OFF the ME910X1-mPCIe module, the W_DISABLE_N and/or PERST_N signals
must be asserted Low.
For proper shutdown operation with correct network detach and memory access disable,
first prepare the module to shutdown by using AT#SYSHALT command..
The duration of the finalization state can differ according to the current status of the
module, so a fix value cannot be defined.
Figure 8 Shutdown using AT#SYSHALT Command
Warning: The W_DISABLE and PERST_N signals are hardware
unconditional SHUTDOWN and must not be used during normal
shutdown operation of the device since it does not detach the device
from the network and can harm the memory content.
It shall be kept as an emergency exit procedure.
To use W_DISABLE_N and PERST_N as Unconditional Hardware
Shutdown first Safety Prepare the module to it, by using the AT
commands: AT#SYSHALT. See AT command [2] [6].
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