Figure 4: Recommended Circuit
VAUX Power Output
A regulated power supply output is provided to supply small devices from the module,
such as: level translators, audio codec, sensors and others.
Pin R11 can also be used as PWRMON function (module powered ON indication), because
it is always active when the module is powered ON and cannot be set to LOW level by any
AT command. The Host can detect deep sleep mode only by monitoring the
VAUX/PWRMON output pin, since there is no dedicated pin for the PSM status indicator.
The characteristics of the operating range of the supply are:
Table 16: Operating range characteristics of the supply
RTC Supply
RTC is functional when ME910G1 is in PSM or OFF state and VBATT pin is supplied.
RTC settings are lost if VBATT supply is temporary disconnected.
Note: If the power saving configuration is enabled by AT+CPSMS
Command, VAUX during the period of deep sleep mode is OFF
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