Panasonic MN103S - Page 167

Chapter 7
I/O Port
Control Registers VII - 15
■ Port 3 Output Register (P3OUT: 0x0000A003) [8-bit access register]
■ Port 3 Input Register (P3IN: 0x0000A013) [8-bit access register]
■ Port 3 I/O Control Register (P3DIR: 0x0000A023) [8-bit access register]
bp 7654321 0
Flag P37O P36O P35O P34O P33O P32O P31O Reser
ved
At reset 0000000 0
Access R/W R/W R/W R/W R/W R/W R/W R/W
bp Flag Description Set condition
7-1
P37O
to
P31O
Output data Output data
0 Reserved - Write "0"
bp 76543210
Flag P37I P36I P35I P34I P33I P32I P31I Reser
ved
At resetxxxxxxxx
AccessRRRRRRRR
bp Flag Description Set condition
7-1
P37I
to
P31I
Input data Input data
0 Reserved - -
bp 76543210
Flag P37D P36D P35D P34D P33D P32D P31D Reser
ved
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
7-1
P37D
to
P31D
I/O mode selection 0: Input mode
1: Output mode
0 Reserved - Write "0"