User's Manual

GE864
GE864GE864
GE864-
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-QUAD Automotive V2 Hardware User Guide
QUAD Automotive V2 Hardware User GuideQUAD Automotive V2 Hardware User Guide
QUAD Automotive V2 Hardware User Guide
1vv0300840 Rev.3 2010-04-08
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 51 of 71
11.5.
11.5.11.5.
11.5. Using the RFTXMON Output GPIO5
Using the RFTXMON Output GPIO5Using the RFTXMON Output GPIO5
Using the RFTXMON Output GPIO5
The GPIO5 pin, when configured as RFTXMON Output, is controlled by the GE864-QUAD
Automotive V2 module and will rise when the transmitter is active and fall after the
transmitter activity is completed.
The TXMON pin behaviour can be configured using the AT command.
# TXMONMODE
# TXMONMODE # TXMONMODE
# TXMONMODE
Refer to AT Commands Reference Guide 80000ST10025a for the full description of this
command.
For example, if a call is started, the line will be HIGH during all the conversation and it
will be again LOW after hanged up.
The line rises up 300ms before first TX burst and will became again LOW from 500ms
to 1sec after last TX burst.
11.6.
11.6.11.6.
11.6. Using the Alarm Output GPIO6
Using the Alarm Output GPIO6 Using the Alarm Output GPIO6
Using the Alarm Output GPIO6
The GPIO6 pad, when configured as Alarm Output, is controlled by the GE864-QUAD
Automotive V2 module and will rise when the alarm starts and fall after the issue of a
dedicated AT command.
This output can be used to power up the GE864-QUAD Automotive V2 controlling
microcontroller or application at the alarm time, giving you the possibility to program a
timely system wake-up to achieve some periodic actions and completely turn off either
the application and the GE864-QUAD Automotive V2 during sleep periods, dramatically
reducing the sleep consumption to few µA.
In battery-powered devices this feature will greatly improve the autonomy of the device.
NOTE:
NOTE:NOTE:
NOTE:
During RESET the line is set to HIGH logic level.
11.7.
11.7.11.7.
11.7. Using the Buzzer Output GPIO7
Using the Buzzer Output GPIO7 Using the Buzzer Output GPIO7
Using the Buzzer Output GPIO7
The GPIO7 pad, when configured as Buzzer Output, is controlled by the GE864-QUAD
Automotive V2 module and will drive with appropriate square waves a Buzzer driver.
This permits to your application to easily implement Buzzer feature with ringing tones
or melody played at the call incoming, tone playing on SMS incoming or simply playing
a tone or melody when needed by your application.