Specifications

Product Technical Specification & Customer Design Guidelines
Interfaces
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This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without
prior written agreement.
WA_DEV_Q64_PTS_001-003 January 9, 2009
3.9 General Purpose Input/Output
The Wireless Microprocessor
®
provides up to 18 General Purpose I/O. They are used
to control any external device such as a LCD, a Keyboard backlight.
3.9.1 Features
Reset State:
 0 : Set to GND
 1: Set to supply 2V8 depending.
 Pull down: Internal pull down with ~60K resistor.
 Pull up: Internal pull up with ~60K resistor to supply 1V8 or 2V8 depending on
I/O type.
 Z: High impedance.
 Undefined: Be careful, undefined must not be used in your application if a
special state at reset is needed. Those pins can be toggling signals.
3.9.2 Pin Description
Signal
Pin
number
I/O I/O type
Reset state
Multiplexed with
GPIO1 21 I/O 2V8-1 Z NOT MUX
GPIO2
22
I/O
2V8-1
Undefined
NOT MUX
GPIO3
23 I/O 2V8-1
Undefined
NOT MUX
GPIO4
24 I/O 2V8-1
Z
NOT MUX
GPIO5
13 I/O 2V8-1
Z
ADIN4 / GPIO5
GPIO6
33 I/O 2V8-1
Z
LED
GPIO7
32 I/O 2V8-1
Z
DSR1
GPIO8
36 I/O 2V8-1
Pull up
RI
GPIO9
39 I/O 2V8-1
Z
RTS1
GPIO10
37 I/O 2V8-1
Z
DTR1
GPIO11
38 I/O 2V8-1
Undefined
DCD1
GPIO12
40 I/O 2V8-1
Z
CTS1
GPIO13
29 I/O Pull-up
Pull up*
SDA
GPIO14 30 I/O
Pull-up
Pull up* SCL
GPIO15 20 I/O
2V8-1
Z NOT MUX