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Integra M2106+
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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_DE_PTS_003-001
April, 2007
3.8
Keyboard Interface
This interface provides 10 connections:
•
5 rows (R0 to R4) and
•
5 columns (C0 to C4).
Digital scanning and debouncing are performed within the M2106+ Wireless CPU
®
. No discrete components
such as R, C (Resistor, Capacitor) are required.
Pin description
Signal
Pin #
I/O
Reset State
I/O type
Description
ROW0
39
I/O
Pull down
CMOS / 1X
Row scan
ROW1
40
I/O
Pull down
CMOS / 1X
Row scan
ROW2
37
I/O
Pull down
CMOS / 1X
Row scan
ROW3
38
I/O
Pull down
CMOS / 1X
Row scan
ROW4
35
I/O
Pull down
CMOS / 1X
Row scan
COL0
36
I/O
Pull up
CMOS / 1X
Column scan
COL1
33
I/O
Pull up
CMOS / 1X
Column scan
COL2
34
I/O
Pull up
CMOS / 1X
Column scan
COL3
31
I/O
Pull up
CMOS / 1X
Column scan
COL4
32
I/O
Pull up
CMOS / 1X
Column scan
WARNING
:
This interface is not fully available with AT commands.
An AT command allows the input key code to be obtained (see AT+CMER command description).
This code must then be processed by the application. See the AT commands Interface Guide
documentation [7] for details.