H8S2268 Datasheet, PDF (225/725 Pages) Renesas Technology Corp – 16-Bit Single-Chip Microcomputer H8S Family/H8S/2200 Series

Section 9 I/O Ports
9.4.1 Port 7 Data Direction Register (P7DDR)
P7DDR specifies input or output of the port 7 pins using the individual bits. P7DDR cannot be
read; if it is, an undefined value will be read.
Initial
Bit
Bit Name Value R/W Description
7
P77DDR 0
6
P76DDR 0
5
P75DDR 0
4
P74DDR 0
W
When a pin is specified as a general purpose I/O port,
W
setting this bit to 1 makes the corresponding port 7 pin an
output pin. Clearing this bit to 0 makes the pin an input
W
pin.
W
3
P73DDR 0
W
2
P72DDR 0
W
1
P71DDR 0
W
0
P70DDR 0
W
9.4.2 Port 7 Data Register (P7DR)
P7DR stores output data for port 7 pins.
Initial
Bit
Bit Name Value R/W Description
7
P77DR 0
6
P76DR 0
R/W Output data for a pin is stored when the pin is specified
R/W ^{as a general purpose output port.}
5
P75DR 0
R/W
4
P74DR 0
R/W
3
P73DR 0
R/W
2
P72DR 0
R/W
1
P71DR 0
R/W
0
P70DR 0
R/W
Rev. 4.00 Mar 21, 2006 page 157 of 654
REJ09B0071-0400