User`s manual

User’s Manual 49
D.2 Keypad and LCD Connections
Figure D-2. Sample Keypad Connections
Sample Program: KEYLCD.C in SAMPLES/COREMODULE.
Figure D-3. Sample LCD Connections
Sample Program: KEYLCD.C in SAMPLES/COREMODULE.
PB2
PB0
PB3
PB4
PB5
PC1
VCC
10 kΩ
resistors
Rabbit 2000
Core Module
Keypad
J1
J2
13
14
15
11
16
20
29
30
PD6
PD7
Row 0
Row 2
Row 3
Row 4
Row 5
Row 1
Col 0
Col 1
NC
NC
7
8
9
10
PA2
PA1
PA3
PA4
PA5
PA6
PA7
VLC
20 kΩ
10 kΩ
4.7 kΩ
2.2 kΩ
1 kΩ
470 Ω
680 Ω
100 nF
3
6
4
5
11
12
13
14
2
2x20 LCD
/CS
C/D
/WR
D4
D5
D6
D7
D0
D1
D2
D3
VLC
VCC
Rabbit 2000
Core Module
J1
4
5
6
7
8
9
10