MITSUBISHI MICROCOMPUTERS
M37274EFSP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
Port Pi Direction Register
b7 b6 b5 b4 b3 b2 b1 b0
Port Pi direction register (Di) (i=0,1,2) [Addresses 00C116, 00C316, 00C516
]
B
0
Name
Functions
After reset
0
R
R
W
W
0 : Port Pi
1 : Port Pi
0
0
input mode
output mode
Port Pi direction register
1
2
3
4
5
6
7
0
0
0
0
0
0
0
0 : Port Pi
1 : Port Pi
1
1
input mode
output mode
R
R
R
R
R
R
R
W
W
W
W
W
W
W
0 : Port Pi
1 : Port Pi
2
2
input mode
output mode
0 : Port Pi
1 : Port Pi
3
3
input mode
output mode
0 : Port Pi
1 : Port Pi
4
4
input mode
output mode
0 : Port Pi
1 : Port Pi
5
5
input mode
output mode
0 : Port Pi
1 : Port Pi
6
6
input mode
output mode
0 : Port Pi
1 : Port Pi
7
7
input mode
output mode
Port Pi Direction Register
Addresses 00C116, 00C316, 00C516
Port P3 Direction Register
b7 b6 b5 b4 b3 b2 b1 b0
Port P3 direction register (D3) [Address 00C716
]
B
0
Name
Functions
R
R
W
W
After reset
0
Port P3 direction register
0 : Port P3
1 : Port P3
0
0
input mode
output mode
1
0
0
R
R
W
—
0 : Port P3
1 : Port P3
1
1
input mode
output mode
2
to
5
Nothing is assigned. These bits are write disable bits.
When these bits are read out, the values are “0.”
Timer 3 count source
selection bit (T3SC)
Refer to Timer mode register 2
(address 00F516).
0
0
R
R
W
W
6
7
Ports P6
3
, P6
4
selection
Refer to clock source control
register (address 021616).
bit (P6IM)
Port P3 Direction Register
Address 00C716
121
RENESAS [ RENESAS TECHNOLOGY CORP ]
