Panasonic MN101C77C 用户手册
Chapter 4 I/O Ports
IV - 38
Port 8
4-8-2
Registers
Figure 4-8-1 Port 8 Registers (1/2)
0
1
2
4
5
6
7
3
P8OUT
P8OUT6
P8OUT7
P8OUT5 P8OUT4 P8OUT3 P8OUT2 P8OUT1 P8OUT0
0
1
Low (V
SS
level)
Output data
High (V
DD
level)
P8OUT
0
1
2
4
5
6
7
3
P8IN
P8IN6
P8IN7
P8IN5
P8IN4
P8IN3
P8IN2
P8IN1
P8IN0
0
1
Pin is Low (V
SS
level).
Input data
Pin is High (V
DD
level).
P8IN
0
1
2
4
5
6
7
3
P8DIR
P8DIR6
P8DIR7
P8DIR5 P8DIR4 P8DIR3 P8DIR2 P8DIR1 P8DIR0
0
1
Input mode
I/O mode selection
Output mode
P8DIR
0
1
2
4
5
6
7
3
P8PLU
P8PLU6
P8PLU7
P8PLU5 P8PLU4 P8PLU3 P8PLU2 P8PLU1 P8PLU0
0
1
No pull-up resistor
Pull-up resistor selection
Pull-up resistor
P8PLU
Port 8 output register (P8OUT : x'03F18', R/W)
Port 8 input register (P8IN : x'03F28', R)
Port 8 direction control register (P8DIR : x'03F38', R/W)
Port 8 pull-up resistor control register (P8PLU : x'03F48', R/W)
( At reset : 0 0 0 0 0 0 0 0 )
( At reset : 0 0 0 0 0 0 0 0 )
( At reset : X X X X X X X X )
( At reset : 0 0 0 0 0 0 0 0 )