Renesas H8 Series Hardware Manual page 639

PDR8—Port Data Register 8
Bit 7
P8
7
Initial value 0
Read/Write R/W
PDR9—Port Data Register 9
Bit 7

Initial value 1

Read/Write
PDRA—Port Data Register A
Bit 7

Initial value 1

Read/Write
PDRB—Port Data Register B
Bit 7
PB
7
Read/Write R
6 5 4
P8 P8 P8
6 5
0 0 0
R/W R/W R/W
Data for port 8 pins
6 5 4

P9 P9
5
1 1 1

R/W R/W
Data for port 9 pins
6 5 4
  
1 1 1
  
6 5 4
PB PB PB
6 5
R R R
Read port B pin states
Appendix B Internal I/O Registers
H'DB
3 2
P8 P8
4 3 2
0 0
R/W R/W
H'DC
3 2
P9 P9
4 3 2
1 1
R/W R/W
H'DD
3 2
PA PA
3 2
0 0
R/W R/W
Data for port A pins
H'DE
3 2
PB PB
4 3 2
R R
Rev. 7.00 Mar 10, 2005 page 597 of 652
I/O Ports
1 0
P8 P8
1 0
0 0
R/W R/W
I/O Ports
1 0
P9 P9
1 0
1 1
R/W R/W
I/O Ports
1 0
PA PA
1 0
0 0
R/W R/W
I/O Ports
1 0
PB PB
1 0
R R
REJ09B0042-0700