Panasonic MN103S - Page 180

Chapter 7
I/O Port
VII - 28 Control Registers
■ Port 9 Output Register (P9OUT: 0x0000A009) [8-bit access register]
■ Port 9 Input Register (P9IN: 0x0000A019) [8-bit access register]
■ Port 9 I/O Control Register (P9DIR: 0x0000A029) [8-bit access register]
bp 76543210
Flag P97O P96O P95O P94O P93O P92O P91O P90O
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
7-0
P97O
to
P90O
Output data Output data
bp 76543210
Flag P97I P96I P95I P94I P93I P92I P91I P90I
At reset xxxxxxxx
Access RRRRRRRR
bp Flag Description Set condition
7-0
P97I
to
P90I
Input data Input data
bp 76543210
Flag P97D P96D P95D P94D P93D P92D P91D P90D
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
7-0
P97D
to
P90D
I/O mode selection 0: Input mode
1: Output mode