User's Manual

Table Of Contents

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TECHNICAL MANUAL

Telit GM862 PCS

Tri Band GPRS Data Terminal System Rev.1

1 - no meaning if <dir> = 0 - INPUT

- output pin set to 1 (HIGH) if <dir> = 1 - OUTPUT

- no meaning if <dir> = 2 - ALTERNATE FUNCTION

2 - Reports the read value from the input pin (see Read command) if

<dir> = 0 - INPUT

- Reports the read value from the input pin (see Read command) if

<dir> = 1 - OUTPUT

- Reports a no meaning value (see Read command) if <dir> = 2 -

ALTERNATE FUNCTION

Note: "ALTERNATE FUNCTION" value is valid only for pins

GPIO6 - alternate function is "Alarm Output" (see command +CALA)

GPIO7 - alternate function is "Buzzer Output" (see command #SRP)

While using the pins in the alternate function, the GPIO read/write

access to that pin is not accessible and shall be avoided.

Note: The GPIO2 is an OPEN COLLECTOR output, the command

sets the transistor base level, hence the open collector output is negated

Test command

AT#GPIO=?

Reports the supported range of values of the command parameters

<pin>,<mode>,<dir>.

Example

AT#GPIO=3,0,1

AT#GPIO=3,2

#GPIO: 1,0

AT#GPIO=4,1,1

AT#GPIO=5,0,0

AT#GPIO=6,2

#GPIO: 0,1

AT#GPIO=7,0,0

Reference Telit GM862-PCS AT Command Specification

SW release Version A