HD64F2145 Datasheet, PDF (250/829 Pages) Renesas Technology Corp – Hitachi 16-Bit Single-Chip Microcomputer

8.15.1 Port E and Port F Data Direction Registers (PEDDR, PFDDR)
PEDDR and PFDDR select input or output for the pins of port E and port F on a bit-by-bit basis.
Bit Bit Name Initial Value R/W Description
7
PE7DDR 0
W
0: Port E pin is an input pin
6
PE6DDR 0
W
1: Port E pin is an output pin
5
PE5DDR 0
4
PE4DDR 0
W
PEDDR has the same address as PEPIN, and if
W
read, the port E pin states will be returned.
3
PE3DDR 0
W
2
PE2DDR 0
W
1
PE1DDR 0
W
0
PE0DDR 0
W
Bit Bit Name Initial Value R/W Description
7
PF7DDR 0
W
0: Port F pin is an input pin
6
PF6DDR 0
W
1: Port F pin is an output pin
5
PF5DDR 0
4
PF4DDR 0
W
PFDDR has the same address as PFPIN, and if
W
read, the port F pin states will be returned.
3
PF3DDR 0
W
2
PF2DDR 0
W
1
PF1DDR 0
W
0
PF0DDR 0
W
Rev. 2.0, 08/02, page 210 of 788