User's Manual

AnyDATA.NET Inc. AnyTime AnyPlace Any Wireless Data Solution
TM
4.7 User Interface
4.7.1 Keypad
The keypad interface consists of a 5 X 6 matrix pattern. The 5-KEYSENSE/[4:0] pins are used to
connect a matrix keypad to the module. The KEYSENSE/ pins are active low.
The 6-KEYPAD pins are necessary to construct the other side of the matrix. These KEYPAD pins
must be active high in order for the keypad matrix to work properly. The general keypad matrix is shown
below:
32 1
65 4
98 7
END
#
0
*
SEND
KEYSENSE0
KEYSENSE1
KEYSENSE2
KEYSENSE3
KEYSE
NSE4
KEYPAD00
KEYPAD01
KEYPAD02
KEYPAD03
KEYPAD04
KEYPAD05
Reserved
Figure 4-1 Keypad Matrix
DTMF
When key is pressed, CDMA Module generates standard DTMF tone and sends it to the local
audio path (speaker). If the Mobile station is in traffic state, the CDMA Module sends DTMF Message to
the Base Station and to the local audio path (speaker) at the same time. The network will deliver the
analog DTMF tone or DTMF Message to its final destination.
All Rights Reserved.
AD-2001-06-28 Ver 1.1
-26-