ME910C1 HW User Guide
1VV0301351 Rev.8 Page 41 of 99 2018-09-28
WARNING
It is recommended to set the ON_OFF*/WAKE* line LOW to power
on the module only after VBATT is higher than 3.20V.
In case this condition it is not satisfied you could use the
HW_SHUTDOWN* line to recover it and then restart the power on
activity using the ON_OFF*/WAKE* line.
An example of this is described in the following diagram.
After HW_SHUTDOWN* is released you could again use the ON_OFF*/WAKE* line to
power on the module.
Power Off
Turning off of the device can be done in two ways:
• via AT command (see ME910C1 Software User Guide, AT#SHDN)
• pin ON_OFF*/WAKE* for at least 3 seconds
Either ways, the device issues a detach request to network informing that the device will
not be reachable any more.
NOTE:
To check if the device has been powered off or IN PSM mode, the
hardware line PWRMON must be monitored. The device is powered
off when PWRMON goes low.
In order to avoid a back powering effect it is recommended to avoid
having any HIGH logic level signal applied to the digital pins of the
ME910C1 when the module is powered off or during an ON-OFF
transition.
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