Rainbow Electronics MG260 - Manual (Page 42)

MG260 Product Specification
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agreement.
Signal Pin # I/O I/O type Description
COL2 47 I/O CMOS / 1X Column scan
COL3 49 I/O CMOS / 1X Column scan
The Keyboard Scanner (KBS) implements all the logic necessary to interface matrix keyboard with
up to 28 keys(see figure 14 of below) to the System Controller.
Figure14: Connecting a Triangle Matrix Keyboard with 28 keys
Keyboard definition:
Key number define Key number define
5 Digital key “1” 11 Digital key “2”
16 Digital key “3” 4 Digital key “4”
10 Digital key “5” 15 Digital key “6”
3 Digital key “7” 9 Digital key “8”
14 Digital key “9” 8 Digital key “0”
2
“
*
”
13 “#”
0 “SEND” 6 “CLEAR”
12 “MENULEFT” 17 “MENURIGHT”
21 “RIGHT” 24 “OK”
22 “UP” 23 “DOWN”
25 “LEFT” 19 “SIDEDOWN”
18 “SIDEUP”
Additional comments on Keyboard:
The exemplify keys are defined, that keys that unmentioned in table, can be defined by updating
software.