HD6432670 Hitachi, HD6432670 Datasheet - Page 469

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

10.1.2
P1DR stores output data for the port 1 pins.
Bit
7
6
5
4
3
2
1
0
10.1.3
PORT1 shows the pin states.
PORT1 cannot be modified.
Bit
7
6
5
4
3
2
1
0
Note: Determined by the states of pins P17 to P10.
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)
Initial Value
0
0
0
0
0
0
0
0
Initial Value
Undefined*
Undefined*
Undefined*
Undefined*
Undefined*
Undefined*
Undefined*
Undefined*
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 to a general purpose I/O.
Description
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.
Rev. 2.0, 04/02, page 423 of 906