h8s-2646 Renesas Electronics Corporation., h8s-2646 Datasheet - Page 303

• Manufacturer Part Number: h8s-2646
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

9.11.2
Table 9.22 shows the port D register configuration.
Table 9.22 Port D Registers
Note: * Lower 16 bits of the address.
Port D Data Direction Register (PDDDR)
PDDDR is an 8-bit write-only register, the individual bits of which specify input or output for the
pins of port D. PDDDR cannot be read; if it is, an undefined value will be read.
PDDDR is initialized to H'00 by a reset, and in hardware standby mode. It retains its prior state in
software standby mode.
Port D Data Register (PDDR)
PDDR is an 8-bit readable/writable register that stores output data for the port D pins (PD7 to
PD0).
PDDR is initialized to H'00 by a reset, and in hardware standby mode. It retains its prior state in
software standby mode.
Name
Port D data direction register
Port D data register
Port D register
Port D MOS pull-up control register
Bit
Initial value :
R/W
Bit
Initial value :
R/W
Register Configuration
:
:
:
:
PD7DDR PD6DDR PD5DDR PD4DDR PD3DDR PD2DDR PD1DDR PD0DDR
PD7DR
R/W
W
7
0
7
0
PD6DR
R/W
W
6
0
6
0
PD5DR
Abbreviation
PDDDR
PDDR
PORTD
PDPCR
R/W
W
5
0
5
0
PD4DR
R/W
W
4
0
4
0
Rev. 5.00 Sep 22, 2005 page 277 of 1136
R/W
W
R/W
R
R/W
PD3DR
R/W
W
3
0
3
0
Initial Value
H'00
H'00
Undefined
H'00
PD2DR
R/W
W
2
0
2
0
Section 9 I/O Ports
PD1DR
REJ09B0257-0500
R/W
W
1
0
1
0
Address *
H'FE3C
H'FF0C
H'FFBC
H'FE43
PD0DR
R/W
W
0
0
0
0