Renesas H8 Series Hardware Manual

Section 8 I/O Ports
Rev. 7.00 Mar 10, 2005 page 229 of 652
REJ09B0042-0700
8.9.2 Register Configuration and Description
Table 8.23 shows the port 9 register configuration.
Table 8.23 Port 9 Registers
Name Abbr. R/W Initial Value Address
Port data register 9 PDR9 R/W H'FF H'FFDC
Port mode register 9 PMR9 R/W — H'FFEC
Port Data Register 9 (PDR9)
Bit
Initial value
Read/Write
7
—
1
—
6
—
1
—
5
P9
1
R/W
4
P9
1
R/W
3
P9
1
R/W
0
P9
1
R/W
2
P9
1
R/W
1
P9
1
R/W
543210
PDR9 is an 8-bit register that stores data for port 9 pins P9
5
to P9
0
.
Upon reset, PDR9 is initialized to H'FF.
Port Mode Register 9 (PMR9)
Bit
Initial value
Read/Write
Note: * Readable/writable reserved bit in the H8/38024S Group and H8/38124 Group.
7

1

6

1

5

1

4

1

3
PIOFF/ 
*
0
R/W
0
PWM
1
0
R/W
2


W
1
PWM
2
0
R/W
PMR9 is an 8-bit read/write register controlling the selection of the P9
0
and P9
1
pin functions.

Renesas H8 Series Specifications

General

Brand	Renesas
Model	H8 Series
Category	Computer Hardware
Language	English