© Confidential
Page: 43 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU
®
3.9
General Purpose Input/Output
The Q2686 Wireless CPU
®
provides up to 44 General Purpose I/Os, used to
control any external device such as an LCD or a Keyboard backlight.
All I/Os highlighted in grey are 1V8, whereas the others (not highlighted in
grey) are 2V8.
GPIO pin description
Signal
Pin
number
I/O I/O type*
Reset state
Multiplexed with
Reserved
42
Do not used*
GPIO0
43
I/O
2V8
Undefined
32kHz**
GPIO1
51
I/O
1V8
0
Not mux
GPIO2
53
I/O
1V8
0
Not mux
GPIO3
50
I/O
1V8
Z
INT0
GPIO4
59
I/O
1V8
Pull-up
COL0
GPIO5
60
I/O
1V8
Pull-up
COL1
GPIO6
61
I/O
1V8
Pull-up
COL2
GPIO7
62
I/O
1V8
Pull-up
COL3
GPIO8
63
I/O
1V8
Pull-up
COL4
GPIO9
68
I/O
1V8
0
ROW0
GPIO10
67
I/O
1V8
0
ROW1
GPIO11
66
I/O
1V8
0
ROW2
GPIO12
65
I/O
1V8
0
ROW3
GPIO13
64
I/O
1V8
0
ROW4
GPIO14
31
I/O
1V8
Z
CT103 / TXD2
GPIO15
30
I/O
1V8
Z
CT104 / RXD2
GPIO16
32
I/O
1V8
Z
~CT106 / CTS2
GPIO17
33
I/O
1V8
Z
~CT105 / RTS2
GPIO18
12
I/O
1V8
Z
SIMPRES
GPIO19
45 I/O 2V8
Z Not
mux
GPIO20
48 I/O 2V8 Undefined
Not mux
GPIO21
47 I/O 2V8 Undefined
Not mux
GPIO22
57 I/O 2V8
Z
Not mux*
GPIO23
55 I/O 2V8
Z Not
mux