User's Manual

Interface Description DTS-800 Reference Manual Application Information
01-DTS800 CDK-1 X1 AnyDATA.NET Proprietary – Use Subject to
Restrictions 14
3.5.1 Key Pad
The key pad interface is consists of 4X5 matrix pattern. 5-KEYSENSE/[4:0] pins can be
used to connect a matrix key pad to the modem. But all pins are not necessary, just
4-KEYSENSE/ pins are used. KEYSENSE/ pins are active low.
5-GPIO pins are necessary to make other side of matrix, 5-GPIO pins are must active
high. The general key pad matrix are below :
• Keypad Matrix
3.5.2 LCD
The modem supports CLD interface. The LCD interface composed of 15-signals.
#
KEYSENSE0/
KEYSENSE1/
KEYSENSE2/
KEYSENSE3/
1
-
GPIO
2
-
GPIO
3
-
GPIO
4
-
GPIO
5
-
GPIO
9
6
3
0
8
5
2
*
7
4
1
SEND
END
Reserved