Synaccess Networks NP-0801DTM - Manual (Page 157)

CUSTOM AT COMMANDS
157 HSPA+ AT Commands Reference Guide
Parameters and Values
<pin> GPIO pin number. Range is from 1 to a value that depends on the hardware.
New Socket modem support GPIO0 to GPIO3.
New MTPCIE‐x support GPIO1 to GPIO3.
<mode> <mode> ‐ Meaning depends on <dir> setting:
0 No meaning if <dir>=0 ‐ INPUT
‐ output pin cleared to 0 (Low) if <dir>=1 ‐ OUTPUT
‐ no meaning if <dir>=2 ‐ ALTERNATE FUNCTION
‐ no meaning if <dir>=3 – TRISTATE PULL DOWN
1 No meaning if <dir>=0 ‐ INPUT
‐ output pin set to 1 (High) if <dir>=1 ‐ OUTPUT
‐ no meaning if <dir>=2 ‐ ALTERNATE FUNCTION
‐ no meaning if <dir>=3 – TRISTATE PULL DOWN
2 Reports the read value from the input pin if <dir>=0 ‐ INPUT
‐ Reports the read value from the input pin if <dir>=1 ‐ OUTPUT
‐ Reports a no meaning value if <dir>=2 ‐ ALTERNATE FUNCTION
‐ Reports a no meaning if <dir>=3 – TRISTATE PULL DOWN
<dir> GPIO pin direction
0 ‐ pin direction is INPUT
1 ‐ pin direction is OUTPUT
2 ‐ pin direction is ALTERNATE FUNCTION. See Notes section.
3 ‐ pin is set to PULL DOWN. See Notes section.
Notes
„
When <mode>=2 (and <dir> is omitted) the command reports the direction and value of pin GPIO<pin> in the
format:
#GPIO: <dir>,<stat>
where:
<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 or Tristate pull down
„
"ALTERNATE FUNCTION" value is valid only for following pins:
ƒ GPIO4 ‐ alternate function is “RF Transmission Control”
ƒ GPIO5 ‐ alternate function is “RF Transmission Monitor”
ƒ GPIO6 ‐ alternate function is "Alarm Output" (see +CALA)
ƒ GPIO7 ‐ alternate function is "Buzzer Output" (see #SRP)
„
While using the pins in the alternate function, the GPIO read/write access to that pin is not accessible Avoid
access.