HD6432646 Hitachi, HD6432646 Datasheet - Page 1012

• Manufacturer Part Number: HD6432646
• Description: (HD64F264x Series) 16-Bit Microcomputer
• Manufacturer: Hitachi

PADDR—Port A Data Direction Register
PBDDR—Port B Data Direction Register
PCDDR—Port C Data Direction Register
PDDDR—Port D Data Direction Register
978
Bit
Initial value
Read/Write
Bit
Initial value
Read/Write
Bit
Initial value
Read/Write
Bit
Initial value
Read/Write
PC7DDR
PD7DDR
PA7DDR
PB7DDR
W
W
W
W
7
0
7
0
7
0
7
0
PA6DDR
PB6DDR
PC6DDR
PD6DDR
W
W
W
W
6
0
6
0
6
0
6
0
Specify input or output for each of the pins in port A
Specify input or output for each of the pins in port B
Specify input or output for each of the pins in port C
Specify input or output for each of the pins in port D
PA5DDR
PB5DDR
PC5DDR
PD5DDR
W
W
W
W
5
0
5
0
5
0
5
0
PA4DDR
PB4DDR
PC4DDR
PD4DDR
W
W
W
W
4
0
4
0
4
0
4
0
PA3DDR
PB3DDR
PC3DDR
PD3DDR
H'FE39
H'FE3A
H'FE3B
H'FE3C
W
W
W
W
3
0
3
0
3
0
3
0
PA2DDR
PB2DDR
PC2DDR
PD2DDR
W
W
W
W
2
0
2
0
2
0
2
0
PC1DDR
PD1DDR
PA1DDR
PB1DDR
W
W
W
W
1
0
1
0
1
0
1
0
PA0DDR
PB0DDR
PC0DDR
PD0DDR
W
W
W
W
0
0
0
0
0
0
0
0
Port
Port
Port
Port