HD6432670 Hitachi, HD6432670 Datasheet - Page 525

• Manufacturer Part Number: HD6432670
• Description: (HD64F267x Series) 16-Bit Microcomputer
• Manufacturer: Hitachi

Table 10.4 Input Pull-Up MOS States (Port C)
Legend:
Off:
On/Off:On when PCDDR = 0 and PCPCR = 1; otherwise off.
Note: Only in H8S/2678R Series.
10.12
Port D is an 8-bit I/O port that also has other functions. The port D has the following registers.
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
7
6
5
4
3
2
1
0
Note: Only in H8S/2678R Series.
Mode
1, 2, 5, 6
3*, 4, 7
Port D data direction register (PDDDR)
Port D data register (PDDR)
Port D register (PORTD)
Port D pull-up MOS control register (PDPCR)
Bit Name
PD7DDR
PD6DDR
PD5DDR
PD4DDR
PD3DDR
PD2DDR
PD1DDR
PD0DDR
Input pull-up MOS is always off.
Port D
Reset
Off
Initial Value
0
0
0
0
0
0
0
0
Hardware
Standby Mode
Off
R/W
W
W
W
W
W
W
W
W
Description
Port D is automatically designated for data
input/output.
Port D is an I/O port, and its pin functions can be
switched with PDDDR.
Modes 1, 2, 3* (EXPE = 1), 4, 5, 6, and 7 (when
EXPE = 1)
Modes 3* (EXPE = 1) and 7 (when EXPE = 0)
Software
Standby Mode
Off
On/Off
Rev. 2.0, 04/02, page 479 of 906
In Other
Operations
Off
On/Off