Motorola G24 用户手册
Chapter 3: AT Commands Reference
December 31, 2007
AT Commands Reference Manual
3-227
+MVREF, Motorola Voltage Reference
This command defines the Vref regulator's configuration. Pin 27 is used as indicator signal that
reflects the configuration of Vref regulator. This command is a basic command. The command is
also sensitive to ATS24 command.
reflects the configuration of Vref regulator. This command is a basic command. The command is
also sensitive to ATS24 command.
The following table shows the +MVREF parameters.
Example
AT+MVREF=?
+MVREF:(0-2)
OK
AT+MVREF=1
OK
AT+MVREF?
+MVREF: 1
Command
Type
Syntax
Response/Action
Remarks
Set
+MVREF=<control>
OK
or:
+CME ERROR: <err>
The Set command is used for setting
the behavior of Vref regulator.
the behavior of Vref regulator.
Read
+MVREF?
+MVREF: <control>
OK
or:
+CME ERROR: <err>
The Read command returns the current
behavior <control> value.
behavior <control> value.
Test
+MVREF=?
+MVREF: (0-2)
OK
The Test command returns the possible
values' range.
values' range.
Table 3-146: +MVREF Parameters
<Parameter>
Description
<control>
0
OFF mode.
1
ON mode.
2
STANDBY mode (default).
For additional information about pin 27’s signals,
.
Table 3-147: +MVREF Signals Values
Mode
Voltage
Current
0
0V
0A
1
2.75V
50mA
2
2.75V
ATS24 is 0: 50mA
ATS24 is not 0: The current is
changed alternately from 50mA to
2mA and back to 50mA.
ATS24 is not 0: The current is
changed alternately from 50mA to
2mA and back to 50mA.