Panasonic MN103S - Page 178

Chapter 7
I/O Port
VII - 26 Control Registers
■ Port 8 Output Register (P8OUT: 0x0000A008) [8-bit access register]
■ Port 8 Input Register (P8IN: 0x0000A018) [8-bit access register]
■ Port 8 I/O Control Register (P8DIR: 0x0000A028) [8-bit access register]
bp 76543210
Flag Reser
ved
Reser
ved
Reser
ved
Reser
ved
P83O P82O P81O P80O
At reset 00000000
Access R/W R/W R R/W R/W R/W R/W R/W
bp Flag Description Set condition
7-4 Reserved - Write "0"
3-0
P83O
to
P80O
Output data Output data
bp 76543210
Flag Rese
rved
Rese
rved
Rese
rved
Rese
rved
P83I P82I P81I P80I
At reset xxxxxxxx
Access RRRRRRRR
bp Flag Description Set condition
7-4 Reserved - -
3-0
P83I
to
P80I
Input data Input data
bp 76543210
Flag Rese
rved
Rese
rved
Rese
rved
Rese
rved
P83D P82D P81D P80D
At reset 00000000
Access R/W R/W R/W R/W R/W R/W R/W R/W
bp Flag Description Set condition
7-4 Reserved - Write "0"
3-0
P83D
to
P80D
I/O mode selection 0: Input mode
1: Output mode