Rev. 1.0, 09/01, page 468 of 904
10.12
Port D
Port D is an 8-bit I/O port that also has other functions. The port D has the following registers.
•
Port D data direction register (PDDDR)
•
Port D data register (PDDR)
•
Port D register (PORTD)
•
Port D MOS pull-up control register (PDPCR)
10.12.1
Port D Data Direction Register (PDDDR)
The individual bits of PDDDR specify input or output for the pins of port D.
PDDDR cannot be read; if it is, an undefined value will be read.
Bit
Bit Name
Initial Value
R/W
Description
7
PD7DDR
0
W
6
PD6DDR
0
W
5
PD5DDR
0
W
4
PD4DDR
0
W
3
PD3DDR
0
W
2
PD2DDR
0
W
1
PD1DDR
0
W
0
PD0DDR
0
W
•
Modes 1, 2, 4, 5, 6, and 7 (when EXPE = 1)
Port D is automatically designated for data
input/output.
•
Mode 7 (when EXPE = 0)
Port D is an I/O port, and its pin functions can be
switched with PDDDR.
10.12.2
Port D Data Register (PDDR)
PDDR stores output data for the port D pins.
Bit
Bit Name
Initial Value
R/W
Description
7
PD7DR
0
R/W
6
PD6DR
0
R/W
5
PD5DR
0
R/W
4
PD4DR
0
R/W
3
PD3DR
0
R/W
2
PD2DR
0
R/W
1
PD1DR
0
R/W
0
PD0DR
0
R/W
Output data for a pin is stored when the pin function
is specified to a general purpose I/O.
Содержание H8S/2376 F-ZTAT
Страница 24: ...Rev 1 0 09 01 page xxiv of xliv ...
Страница 38: ...Rev 1 0 09 01 page xxxviii of xliv ...
Страница 44: ...Rev 1 0 09 01 page xliv of xliv ...
Страница 60: ...Rev 1 0 09 01 page 16 of 904 ...
Страница 96: ...Rev 1 0 09 01 page 52 of 904 ...
Страница 116: ...Rev 1 0 09 01 page 72 of 904 ...
Страница 148: ...Rev 1 0 09 01 page 104 of 904 ...
Страница 284: ...Rev 1 0 09 01 page 240 of 904 ...
Страница 422: ...Rev 1 0 09 01 page 378 of 904 ...
Страница 634: ...Rev 1 0 09 01 page 590 of 904 ...
Страница 656: ...Rev 1 0 09 01 page 612 of 904 ...
Страница 668: ...Rev 1 0 09 01 page 624 of 904 ...
Страница 780: ...Rev 1 0 09 01 page 736 of 904 ...
Страница 796: ...Rev 1 0 09 01 page 752 of 904 ...
Страница 806: ...Rev 1 0 09 01 page 762 of 903 ...
Страница 808: ...Rev 1 0 09 01 page 764 of 904 ...
Страница 921: ...Rev 1 0 09 01 page 877 of 904 ø tBRQOD tBRQOD Figure 24 24 External Bus Request Output Timing ...
Страница 938: ...Rev 1 0 09 01 page 894 of 904 ...