MTCMR-G-F4 Multi-Tech Systems, MTCMR-G-F4 Datasheet - Page 115

• Manufacturer Part Number: MTCMR-G-F4
• Description: MODEM GPRS QUAD BAND GSM GLOBAL
• Manufacturer: Multi-Tech Systems
• Series: MultiModem® iCellr

Specifications of MTCMR-G-F4

• Frequency: 850MHz, 900MHz, 1.8GHz, 1.9GHz
• Applications: General Purpose
• Interface: RS-232, USB
• Function: Transceiver, Modem
• Data Rate - Maximum: 115.2kbps
• Modulation Or Protocol: GSM, GPRS
• Voltage - Supply: 9 V ~ 32 V
• Package / Case: Module with Case
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Power - Output: -
• Sensitivity: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 881-1151; MTCMR-G-F4

Input/Output Management +WIOM
Multi-Tech Systems, Inc. GPRS AT Commands Reference Guide (Document Number S000293J)
Description:
Values:
Syntax:
This command sets the default GPIO’s configuration (input or output) after reset, and each GPIO default
value (if set as an output) after reset.
Notes:
<GpioDir> Bit table parameter indicating each GPIO direction.
<GpioVal> Bit table parameter indicating each output-configured GPIO value (each bit gives the
Notes:
Command syntax: AT+WIOM=[<GpioDir>],[<GpioVal>]
Command
AT+WIOM?
AT+WIOM=?
AT+WIOM=254
Set GPIO 0 as an input, and all others as outputs
AT+WIOM=,128
Set GPIO 3; default output value to 1
AT+WIOM=,128
Note: Set GPIO 8 or GPIO12 or GPIO7; default
output value to 1
•
•
•
0
1
Default value: 2047 (all GPIOs set as outputs).
corresponding GPIO default value).
0
1 Set
The GPIOs set as inputs by the <GpioDir> parameter are not affected by the value set by the
<GpioVal> parameter.
•
•
change the state of the GPIO using this command.
This command is allowed only on a GPIO not allocated by the Open-AT embedded application or
for bus operations.
When UART is activated, GPIOs 0 and 5, GPO2 and GPI are not available anymore. When you
try to do writable or readable operations on these I/O, CME ERROR: 3 will be returned. This
applies for modems running AT X50 software and supporting the multi-UART feature.
When the BT chip is switched on, the GPIO5 is not available anymore. It is not possible to
<GpioDir> bit values for GPI and GPO are ignored.
<GpioVal> bit values for GPI are ignored.
Input
Output. Default.
Reset. Default.
Possible responses
+WIOM: 2047,0
OK
On reset, all GPIOs are set to 0, as an output
+WIOM: (0-2047),(0-2047)
OK
Range allowed for the parameters.
OK
OK
OK
Chapter 13 – Specific AT Commands
115