Telit Wireless Solutions DE910-DUAL, Reference Manual

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DE910-DUAL AT commands reference guide
80392ST10102A Rev.2 – 2012-07-03
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 120 of 261
#GPIO - General Purpose Input/output Pin Control
<dir> - current direction setting for the GPIO<pin>
<stat>

logic value read from pin GPIO<pin> in the case the pin <dir> is set to
input;

logic value present in output of the pin GPIO<pin> in the case the pin
<dir> is currently set to output;

no meaning value for the pin GPIO<pin> in the case the pin <dir> is set to
alternate function.
Note: "ALTERNATE FUNCTION" value is valid only for following pins:

GPIO4 - alternate function is “RF Transmission Control”

GPIO5 - alternate function is “RF Transmission Monitor”

GPIO6 - alternate function is "Alarm Output" (see +CALA )
Note: while using the pins in the alternate function, the GPIO read/write access
to that pin is not accessible and shall be avoided.
AT#GPIO?
Read command reports the read direction and value of all GPIO pins, in the format:
#GPIO: <dir>,<stat>[<CR><LF>#GPIO: <dir>,<stat>[…]]
where:
<dir> - as seen before
<stat> - as seen before
AT#GPIO=? Test command reports the supported range of values of the command parameters
<pin> , <mode> and <dir> .
Example AT#GPIO=3,0,1
OK
AT#GPIO=3,2
#GPIO: 1,0
OK
AT#GPIO=4,1,1
OK
AT#GPIO=5,0,0
OK
AT#GPIO=6,2
#GPIO: 0,1
OK