REV.-A
Pin
No.
Signal Name
In/Out
Function
29
PO
3
In/Out
Port data (data bus
of
main
CPU)
3
30
P04
In/Out
Port data (data bus
of
main
CPU)
4
31
PO
5
In/Out
Port data (data bus
of
main
CPU)
5
32
PO
6
In/Out
Port data (data bus
of
main
CPU)
6
33
PO
7
In/Out
Port data (data bus
of
main
CPU)
7
34
LOO
In/Out
Local data (for V-RAM) 0
35
LO
1
In/Out
Local data (for V-RAM) 1
36
LO
2
In/Out
Local data (for V-RAM) 2
37
LO
3
In/Out
Local data (for V-RAM) 3
38
L04
In/Out
Local data (for V-RAM) 4
39
LO
5
In/Out
Local data (for V-RAM) 5
40
LO
6
In/Out
Local data (for V-RAM) 6
41
LO
7
In/Out
Local data (for V-RAM) 7
42
LAO
Out Local address (for V-RAM) 0
43
LA 1
Out
Local address (for V-RAM) 1
44
LA2
Out
Local address (for V-RAM) 2
45
LA3
Out Local address (for V-RAM) 3
46
LA4
Out Local address (for V-RAM) 4
47
LA5
Out Local address (for V-RAM) 5
48
LA6
Out Local address (for V-RAM) 6
49
LA 7 Out Local address (for V-RAM) 7
50
LA8
Out
Local address (for V-RAM) 8
51
LA9
Out Local address (for V-RAM) 9
52
LA
10
Out Local address (for V-RAM)
10
53
LCSE
1 Out Local chip select 1 (V-RAM
11
C)
54
LCSE
2
Out
Local chip select 2 (V-RAM 10C)
55
LCSE
3
Out
Local chip select 3 (V-RAM 9C)
56
N/C
-
Not
used.
7-54
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