HD6432670 Hitachi, HD6432670 Datasheet - Page 489

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

10.3.3
PORT3 shows the pin states.
PORT3 cannot be modified.
Bit
7
6
5
4
3
2
1
0
Note: Determined by the states of pins P35 to P30.
10.3.4
P3ODR controls the output status for each port 3 pin.
Bit
7
6
5
4
3
2
1
0
Bit Name
—
—
P35
P34
P33
P32
P31
P30
Bit Name
—
—
P35ODR
P34ODR
P33ODR
P32ODR
P31ODR
P30ODR
Port 3 Register (PORT3)
Port 3 Open Drain Control Register (P3ODR)
Initial Value
0
0
Undefined*
Undefined*
Undefined*
Undefined*
Undefined*
Undefined*
Initial Value
0
0
0
0
0
0
0
0
R/W
—
—
R
R
R
R
R
R
R/W
—
—
R/W
R/W
R/W
R/W
R/W
R/W
Description
Reserved
These bits are always read as 0 and cannot be
modified.
If a port 3 read is performed while P3DDR bits are
set to 1, the P3DR values are read. If a port 1 read is
performed while P3DDR bits are cleared to 0, the pin
states are read.
Description
Reserved
These bits are always read as 0 and cannot be
modified.
Setting a P3ODR bit to 1 makes the corresponding
port 3 pin an NMOS open-drain output pin, while
clearing the bit to 0 makes the pin a CMOS output
pin.
Rev. 2.0, 04/02, page 443 of 906