Remote Processing RPC-30 - Manual (Page 32)

KEYPAD PORT CHAPTER 9
Page 30 RPC-30
The table b elow lists J5' s pinout, 82C55 p ort and bit,
and its intended function.
Pin 82C55 Function
Port/ bit
1 C / 0 Row 1
2 C / 6 Column 3
3 C / 5 Column 2
4 C / 1 Row 2
5 C / 2 Row 3
6 C / 4 Column 1
7 C / 7 Column 4
8 C / 3 Row 4
9 B/0 Column 5
10 B/1 Column 6
COMMANDS
The following is a list of CAMBASIC com mands for the
keypad.
Comm and Function
I N P U T KE Y P A D $ Input data from a keypad
KEYPA D$(n) Returns last key from
keypad port
O N K E Y P AD $ Causes a program branch
when a key is pressed
SYS(8) Returns keypad string
address