User's Manual

GE866-DUAL Hardware User Guide
1VV0301051 Rev. 2 – 2014-04-07 7
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Reserved. Page 60 of 82
Mod. 0805 2011-07 Rev.2
11.9. SIMIN detect function
All the GPIO pins can be used as SIM DETECT input. The AT
Command used to enable the function is:
AT#SIMINCFG
Use the AT command AT#SIMDET=2 to enable the SIMIN detection
Use the AT command AT&W0 and AT&P0 to store the SIMIN
detection in the common profile.
For full details see AT Commands Reference Guide,
80000ST10025a.
NOTE:
Don’t use the SIM IN function on the same pin where the GPIO
function is enabled and vice versa!
11.10. RTC Bypass out
The VRTC pin brings out the Real Time Clock supply, which is
separate from the rest of the digital part, allowing having
only RTC going on when all the other parts of the device are
off.
To this power output a backup battery can be added in order to
increase the RTC autonomy during power off of the main battery
(power supply). NO Devices must be powered from this pin.
11.11. SIM Holder Implementation
Please refer to the related User Guide (SIM Holder Design
Guides, 80000NT10001a).