H8S-2350 RENESAS [Renesas Technology Corp], H8S-2350 Datasheet - Page 422

• Manufacturer Part Number: H8S-2350
• Description: 16-Bit Single-Chip Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 9 I/O Ports
9.11.2
Table 9.19 shows the port D register configuration.
Table 9.19 Port D Registers
Note:
Port D Data Direction Register (PDDDR) [H8S/2351 Only]
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 power-on reset, and in hardware standby mode. It retains its
prior state after a manual reset, and in software standby mode.
Rev. 3.00 Sep 15, 2006 page 388 of 988
REJ09B0330-0300
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
Modes 1, 2, and 4 to 6
The input/output direction specification by PDDDR is ignored, and port D is automatically
designated for data I/O.
Modes 3 and 7
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.
* Lower 16 bits of the address.
Register Configuration [H8S/2351 Only]
:
:
:
PD7DDR
W
7
0
PD6DDR
W
6
0
PD5DDR
PDDDR
PDDR
PDPCR
Abbreviation
PORTD
W
5
0
PD4DDR
W
4
0
PD3DDR
R/W
W
R/W
R
R/W
W
3
0
PD2DDR
Initial Value
H'00
H'00
Undefined
H'00
W
2
0
PD1DDR
W
1
0
H'FF5C
H'FF73
Address *
H'FEBC
H'FF6C
PD0DDR
W
0
0