r4f2456 Renesas Electronics Corporation., r4f2456 Datasheet - Page 533

• Manufacturer Part Number: r4f2456
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
• Manufacturer: Renesas Electronics Corporation.

10.1.2
P1DR stores output data for the port 1 pins.
10.1.3
PORT1 shows the pin states of port 1. PORT1 cannot be modified.
Note:
Bit
7
6
5
4
3
2
1
0
Bit
7
6
5
4
3
2
1
0
Bit Name
P17DR
P16DR
P15DR
P14DR
P13DR
P12DR
P11DR
P10DR
Bit Name
P17
P16
P15
P14
P13
P12
P11
P10
*
Port 1 Data Register (P1DR)
Port 1 Register (PORT1)
Determined by the states of pins P17 to P10.
0
0
0
0
0
0
0
0
*
*
*
*
*
*
*
*
Initial Value
Initial Value
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R
R
R
R
R
R
R
R
Description
Output data for a pin is stored when the pin function
is specified as a general purpose I/O.
Description
If this register is read while a P1DDR bit is set to 1,
the corresponding P1DR value is read. If this
register is read while a P1DDR bit is cleared to 0,
the corresponding pin state is read.
Rev. 1.00 Sep. 19, 2008 Page 503 of 1342
Section 10 I/O Ports
REJ09B0467-0100