HD6435348R Hitachi Semiconductor, HD6435348R Datasheet - Page 439

• Manufacturer Part Number: HD6435348R
• Description: Single-Chip Microcomputer
• Manufacturer: Hitachi Semiconductor

P9DDR—Port 9 Data Direction Register
Bit
Initial value
Read/Write
IPRA—Interrupt Priority Register A
Bit
Initial value
Read/Write
IPRB—Interrupt Priority Register B
Bit
Initial value
Read/Write
P9DR—Port 9 Data Register
Bit
Initial value
Read/Write
P9
R/W
7
P9
W
—
—
7
DDR P9
0
R
R
7
0
7
0
7
0
7
IRQ
0
IRQ
priority level (0 to 7)
R/W
R/W
R/W
interrupt priority level (0 to 7)
6
P9
W
6
0
DDR P9
6
0
6
0
6
0
6
2
and IRQ
R/W
R/W
R/W
5
P9
W
5
DDR P9
0
5
0
5
0
5
0
5
3
interrupt
429
R/W
R/W
R/W
4
P9
W
4
DDR P9
0
4
0
4
0
4
0
4
H'FEFE
H'FF00
H'FF01
H'FEFF
R/W
3
P9
W
—
—
3
0
R
R
DDR P9
3
0
3
0
3
0
3
Port 9 Input/Output Selection
IRQ
0 Input port
1 Output port
1
IRQ
priority level (0 to 7)
R/W
R/W
R/W
interrupt priority level (0 to 7)
2
P9
W
2
DDR P9
0
2
0
2
0
2
0
2
4
and IRQ
R/W
R/W
R/W
1
P9
W
1
0
DDR P9
1
0
1
0
1
0
1
5
interrupt
R/W
R/W
R/W
0
P9
Port 9
INTC
INTC
Port 9
W
0
DDR
0
0
0
0
0
0
0
0