Specifications

WM_PRJ_Q2501_PTS_001 – 003
March 2004
© 2003 All rights reserved
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This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior written
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Ce document est la propriété exclusive de WAVECOM. Il ne peut être communiqué ou divulgué à des tiers sans son
autorisation préalable.
2.6.11.2 Digital to Analog Converter
WISMO Quik Q2501 provides a digital to analog converter.
This output voltage level varies according to a programmable value. It can be
used as a programmable voltage generator.
Pin description
Signal Pin # I/O I/O type Description
AUXDAC 31 O Analog D/A converter
2.7 GPS interface
2.7.1 GPS activation
The GPS function can be activated/deactivated either by software or by
hardware command through the GPS_EN signal available on the system
connector and acting as:

An input when GPS activation is hardware controlled,

An output when GPS activation is software controlled; in that case,
GPS_EN output is externally used as a GPS activation indicator.
The choice between hardware or software control is performed by AT command
(see AT+WGPSM command in document [5]).
In case of conflict between hardware control and software control, the latest one
has priority.
Hardware Activation:
Hardware activation pin for GPS function is available on the system connector
(GPS_EN):

high logic level: enable the GPS section.
The voltage level of this signal has to be maintained between 2.4 V and
VBATT.

low logic level: disable the GPS section.
Software Activation
:
GPS function activation/deactivation is controlled by AT commands (see AT
WGPSM command in document [5]).
When software control is selected, any action on GPS_EN input is without effect.
Pin description
Signal Pin # I/O I/O type Description
GPS_EN 21 I/O 1V8_CMOS Activation of the GPS function