DVD-R7783
86
1
2
3
4
1
2
3
4
C
D
F
A
B
E
No.
Pin Name
I/O
Pin Function
49
P4
3
/A
19
I/O
Single-chip mode : 8-bit I/O port P4 with same function as port P0
Memory expansion mode : High-order 8-bit of address output
50
P4
2
/A
18
I/O
Single-chip mode : 8-bit I/O port P4 with same function as port P0
Memory expansion mode : High-order 8-bit of address output
51
P4
1
/A
17
I/O
Single-chip mode : 8-bit I/O port P4 with same function as port P0
Memory expansion mode : High-order 8-bit of address output
52
P4
0
/A
16
I/O
Single-chip mode : 8-bit I/O port P4 with same function as port P0
Memory expansion mode : High-order 8-bit of address output
53
P3
7
/A
15
I/O
Single-chip mode : 8-bit I/O port P3 with same function as port P0
Memory expansion mode : Middle-order 8-bit of address output
54
P3
6
/A
14
I/O
Single-chip mode : 8-bit I/O port P3 with same function as port P0
Memory expansion mode : Middle-order 8-bit of address output
55
P3
5
/A
13
I/O
Single-chip mode : 8-bit I/O port P3 with same function as port P0
Memory expansion mode : Middle-order 8-bit of address output
56
P3
4
/A
12
I/O
Single-chip mode : 8-bit I/O port P3 with same function as port P0
Memory expansion mode : Middle-order 8-bit of address output
57
P3
3
/A
11
I/O
Single-chip mode : 8-bit I/O port P3 with same function as port P0
Memory expansion mode : Middle-order 8-bit of address output
58
P3
2
/A
10
I/O
Single-chip mode : 8-bit I/O port P3 with same function as port P0
Memory expansion mode : Middle-order 8-bit of address output
59
P3
1
/A
9
I/O
Single-chip mode : 8-bit I/O port P3 with same function as port P0
Memory expansion mode : Middle-order 8-bit of address output
60
V
CC
−
Power supply (3.3V
±
0.3V)
61
P3
0
/A
8
I/O
Single-chip mode : 8-bit I/O port P3 with same function as port P0
Memory expansion mode : Middle-order 8-bit of address output
62
V
SS
−
Power supply (0V)
63
P2
7
/A
7
/(D
7
)
I/O
Single-chip mode : 8-bit I/O port P2 with same function as port P0
Memory expansion mode : Low-order 8-bit of address output, Low-order 8-bit of data input/output
64
P2
6
/A
6
/(D
6
)
I/O
Single-chip mode : 8-bit I/O port P2 with same function as port P0
Memory expansion mode : Low-order 8-bit of address output, Low-order 8-bit of data input/output
65
P2
5
/A
5
/(D
5
)
I/O
Single-chip mode : 8-bit I/O port P2 with same function as port P0
Memory expansion mode : Low-order 8-bit of address output, Low-order 8-bit of data input/output
66
P2
4
/A
4
/(D
4
)
I/O
Single-chip mode : 8-bit I/O port P2 with same function as port P0
Memory expansion mode : Low-order 8-bit of address output, Low-order 8-bit of data input/output
67
P2
3
/A
3
/(D
3
)
I/O
Single-chip mode : 8-bit I/O port P2 with same function as port P0
Memory expansion mode : Low-order 8-bit of address output, Low-order 8-bit of data input/output
68
P2
2
/A
2
/(D
2
)
I/O
Single-chip mode : 8-bit I/O port P2 with same function as port P0
Memory expansion mode : Low-order 8-bit of address output, Low-order 8-bit of data input/output
69
P2
1
/A
1
/(D
1
)
I/O
Single-chip mode : 8-bit I/O port P2 with same function as port P0
Memory expansion mode : Low-order 8-bit of address output, Low-order 8-bit of data input/output
70
P2
0
/A
0
/(D
0
)
I/O
Single-chip mode : 8-bit I/O port P2 with same function as port P0
Memory expansion mode : Low-order 8-bit of address output, Low-order 8-bit of data input/output
71
P1
7
/D
15
I/O
Single-chip mode : 8-bit I/O port P1 with same function as port P0
Memory expansion mode : High-order 8-bit of data input/output
72
P1
6
/D
14
I/O
Single-chip mode : 8-bit I/O port P1 with same function as port P0
Memory expansion mode : High-order 8-bit of data input/output
73
P1
5
/D
13
I/O
Single-chip mode : 8-bit I/O port P1 with same function as port P0
Memory expansion mode : High-order 8-bit of data input/output
