Appendix G Magic-
c
1. Function
1) Stand-by
Oscillation is stop
Output of D0~D5, D8, D9 is L , Output of D6~D7 is
H
2) Condition of stand-by mode
After reset
When scan strobe output is over, there is not any key input.
3) Release of stand-by mode
One of the key scan input (K0~K3, R0~R3) is change to L level
2. Key Input
1) Key-data mapping table
Input pin
Output pin
K0
1
K1
2
K2
3
K3
4
R0
5
R1
6
R2
7
R3
8
D0
D8
D9
D1
D2
D3
D4
D5
9
10
18
26
34
42
50
58
11
19
27
35
43
51
59
12
20
28
36
44
52
60
13
21
29
37
45
53
61
14
22
30
38
46
54
62
15
23
31
39
47
55
63
16
24
32
40
48
56
64
17
25
33
41
49
57
2) Double action key
Combi of Key
K21 + K22
Key Data
B5h
K21 + K23
B6h
K21 + K24
B7h
G - 2
HYNIX [ HYNIX SEMICONDUCTOR ]
