Hardware manual

Rev. 3.0, 09/98, page 339 of 361
P8DDRPort 8 Data Direction Register H'FFBD Port 8
Bit
Initial value
Read/Write
7
—
1
—
6
P8
6 DDR
0
W
5
P8
5 DDR
0
W
4
P8
4 DDR
0
W
3
P8
3 DDR
0
W
0
P8
0 DDR
0
W
2
P8
2 DDR
0
W
1
P8
1 DDR
0
W
Port 8 Input/Output Control
Input port
Output port
0
1
P8DRPort 8 Data Register H'FFBF Port 8
Bit
Initial value
Read/Write
7
—
1
—
6
P8
6
0
R/W
5
P8
5
0
R/W
4
P8
4
0
R/W
3
P8
3
0
R/W
0
P8
0
0
R/W
2
P8
2
0
R/W
1
P8
1
0
R/W
P9DDRPort 9 Data Direction Register H'FFC0 Port 9
Bit
Mode 1 and 2
Initial value
Read/Write
Mode 3
Initial value
Read/Write
7
P9
7 DDR
0
W
0
W
6
P9 6 DDR
1
—
0
W
5
P9 5 DDR
0
W
0
W
4
P9 4 DDR
0
W
0
W
3
P9 3 DDR
0
W
0
W
0
P9 0 DDR
0
W
0
W
2
P9 2 DDR
0
W
0
W
1
P9 1 DDR
0
W
0
W
Port 9 Input/Output Control
Input port
Output port
0
1