HD6432670 Hitachi, HD6432670 Datasheet - Page 529

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

Bit
7
6
5
4
3
2
1
0
Note: Only in H8S/2678R Series.
10.13.2 Port E Data Register (PEDR)
PEDR stores output data for the port E pins.
Bit
7
6
5
4
3
2
1
0
Bit Name
PE7DDR
PE6DDR
PE5DDR
PE4DDR
PE3DDR
PE2DDR
PE1DDR
PE0DDR
Bit Name
PE7DR
PE6DR
PE5DR
PE4DR
PE3DR
PE2DR
PE1DR
PE0DR
Initial Value
0
0
0
0
0
0
0
0
Initial Value
0
0
0
0
0
0
0
0
R/W
W
W
W
W
W
W
W
W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Description
When 8-bit bus mode is selected, port E functions as
an I/O port. The pin states can be changed with
PEDDR.
When 16-bit bus mode is selected, port E is
designated for data input/output.
For details on 8-bit and 16-bit bus modes, see
section 6, Bus Controller.
When 8-bit bus mode is selected, port E functions as
an I/O port. Setting a PEDDR bit to 1 makes the
corresponding port E pin an output port, while
clearing the bit to 0 makes the pin an input port.
When 16-bit bus mode is selected, port E is
designated for data input/output.
Port E is an I/O port, and its pin functions can be
switched with PEDDR.
Description
Output data for a pin is stored when the pin function
is specified to a general purpose I/O.
Modes 1, 2, 4, 5, and 6
Modes 3* and 7 (when EXPE = 1)
Modes 3* and 7 (when EXPE = 0)
Rev. 2.0, 04/02, page 483 of 906