HD6412320 RENESAS [Renesas Technology Corp], HD6412320 Datasheet - Page 447

• Manufacturer Part Number: HD6412320
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family H8S-2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

9.11.2
Table 9.20 shows the port D register configuration.
Table 9.20 Port D Registers
Name
Port D data direction register
Port D data register
Port D register
Port D MOS pull-up control register
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.
•
•
Bit
Initial value :
R/W
The input/output direction specification by PDDDR is ignored, and port D is automatically
designated for data I/O.
Setting a PDDDR bit to 1 makes the corresponding port D pin an output port, while clearing
the bit to 0 makes the pin an input port.
Modes 4 to 6
Mode 7
Register Configuration
:
:
PD7DDR PD6DDR PD5DDR PD4DDR PD3DDR PD2DDR PD1DDR PD0DDR
W
7
0
W
6
0
Abbreviation
PDDDR
PDDR
PORTD
PDPCR
W
5
0
W
4
0
Rev.6.00 Sep. 27, 2007 Page 417 of 1268
R/W
W
R/W
R
R/W
W
3
0
Initial Value
H'00
H'00
Undefined
H'00
W
2
0
Section 9 I/O Ports
REJ09B0220-0600
W
1
0
Address *
H'FEBC
H'FF6C
H'FF5C
H'FF73
W
0
0