User's Manual

WM_PRJ_Q2400_PTS_002 - 004
March 5, 2004
2.6 Keyboard interface
 Warning:
This interface is not FULLY available with AT commands:
An AT command allows to get the input key code (see AT+CMER command description). This
code has then to be processed by the application.
This interface provides 10 connections:
• 5 rows (ROW0 to ROW4),
• 5 columns (COL0 to COL4).
The scanning is a digital one, and the debouncing is done in the WISMO module. No discrete
components like R, C (Resistor, Capacitor) are needed.
Pin description
Signal Pin number I/O I/O type Description
ROW0 13 I/O CMOS / 1X Row scan
ROW1 15 I/O CMOS / 1X Row scan
ROW2 17 I/O CMOS / 1X Row scan
ROW3 19 I/O CMOS / 1X Row scan
ROW4 21 I/O CMOS / 1X Row scan
COL0 23 I/O CMOS / 1X Column scan
COL1 25 I/O CMOS / 1X Column scan
COL2 27 I/O CMOS / 1X Column scan
COL3 29 I/O CMOS / 1X Column scan
COL4 31 I/O CMOS / 1X Column scan
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