HD6417750RF240V Datasheet, PDF (167/606 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2600 Series

Section 9 I/O Ports
9.1.2 Port 1 Data Register (P1DR)
P1DR is an 8-bit readable/writable register that stores output data for port 1 pins.
Bit Bit Name
7 P17DR
6 P16DR
5 P15DR
4 P14DR
3 P13DR
2 P12DR
1 P11DR
0 P10DR
Initial Value R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
Description
Output data for a pin is stored when the pin is
specified as a general purpose I/O port.
9.1.3 Port 1 Register (PORT1)
PORT1 is an 8-bit read-only register that shows the pin states.
PORT1 cannot be modified.
Bit Bit Name Initial Value R/W Description
7 P17
6 P16
5 P15
4 P14
Undefined^* R
Undefined^* R
Undefined^* R
Undefined^* R
If a port 1 read is performed while P1DDR bits are
set to 1, the P1DR values are read. If a port 1 read
is performed while P1DDR bits are cleared to 0, the
pin states are read.
3 P13
Undefined^* R
2 P12
Undefined^* R
1 P11
Undefined^* R
0 P10
Undefined^* R
Note: * Determined by the states of pins P17 to P10.
Rev. 7.00 Sep. 11, 2009 Page 131 of 566
REJ09B0211-0700