
101
MITSUBISHI MICROCOMPUTERS
M37207MF-XXXSP/FP, M37207M8-XXXSP
M37207EFSP/FP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER
and ON-SCREEN DISPLAY CONTROLLER
Port Pi Direction Register
Port P3 Direction Register
Addresses 00C1
16
, 00C3
16
, 00C5
16
, 00CD
16
Address 00C7
16
b7 b6 b5 b4 b3 b2 b1 b0
Port Pi direction register (Di) (i=0,1,2, 6) [Addresses 00C1
16,
00C3
16
, 00C5
16
, 00CD
16
]
B
Name
Functions
After reset
R
W
Port Pi Direction Register
0
0 : Port Pi
0
input mode
1 : Port Pi
0
output mode
0
1
0 : Port Pi
1
input mode
1 : Port Pi
1
output mode
0
2
0 : Port Pi
2
input mode
1 : Port Pi
2
output mode
0
3
0 : Port Pi
3
input mode
1 : Port Pi
3
output mode
0
4
0 : Port Pi
4
input mode
1 : Port Pi
4
output mode
0
5
0 : Port Pi
5
input mode
1 : Port Pi
5
output mode
0
6
0 : Port Pi
6
input mode
1 : Port Pi
6
output mode
0
7
0 : Port Pi
7
input mode
1 : Port Pi
7
output mode
0
Port Pi direction register
R
W
R
W
R
W
R
W
R
W
R
W
R
W
R
W
b7 b6 b5 b4 b3 b2 b1 b0
Port P3 direction register (D3) [Address 00C7
16
]
B
Name
Functions
After reset
R W
Port P3 Direction Register
0
0 : Port P3
0
input mode
1 : Port P3
0
output mode
0
1
0 : Port P3
1
input mode
1 : Port P3
1
output mode
0
2
0 : Port P3
2
input mode
1 : Port P3
2
output mode
0
0
Port P3 direction register
Nothing is assigned. This bit is a write disable bit.
When this bit is read out, the value is “0.”
R W
R W
R W
R —
3
0 : Port P3
3
input mode
1 : Port P3
3
output mode
0
R W
6
0
R W
7
0 : Port P3
4
input mode
1 : Port P3
4
output mode
0
R W
0 : Port P3
5
input mode
1 : Port P3
5
output mode
0
R W
4
5
0 : Port P3
6
input mode
1 : Port P3
6
output mode