GE910 Hardware User Guide
1vv0300962 Rev.12 2013-10-22
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved
page 61 of 83
Mod. 0805 2011-07 Rev.2
12. General Purpose I/O
The general purpose I/O pads can be configured to act in three different ways:
• input
• output
• alternate function (internally controlled)
Input pads: they report the digital value (high or low) present on the pad at the moment of
reading.
Output pads: can be written, set the output value of the pad, and read.
Alternate function pad: internally controlled by the GE910 firmware and acts depend on
implemented function.
The following table shows the available GPIO on the GE910.
PAD
NOTE:
Pull-Up or Pull-Down can be set on every GPIO, see “AT Commands Reference Guide”.
By default at start time, if no previous set were saved, they are set as Input Pull-Down.
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