HD6433682 ETC, HD6433682 Datasheet - Page 144

• Manufacturer Part Number: HD6433682
• Description: Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Tiny Series
• Manufacturer: ETC

9.2.2
PDR2 is a general I/O port data register of port 2.
9.2.3
PMR3 selects the CMOS output or NMOS open-drain output for port 2.
9.2.4
The correspondence between the register specification and the port functions is shown below.
P24 pin
Rev. 3.00, 05/03, page 114 of 464
Register
Bit Name
Setting Value 0
Bit
7 to 5
4
3
2
1
0
Bit
7 to 5
4
3
2 to 0
Bit Name
P24
P23
P22
P21
P20
Bit Name
POF24
POF23
Port Data Register 2 (PDR2)
Port Mode Register 3 (PMR3)
Pin Functions
PCR2
PCR24
1
Initial
Value
All 1
0
0
0
0
0
Initial
Value
All 0
0
0
All 1
Pin Function
P24 input pin
P24 output pin
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Description
Reserved
These bits are always read as 1.
PDR2 stores output data for port 2 pins.
If PDR2 is read while PCR2 bits are set to 1, the value
stored in PDR2 is read. If PDR2 is read while PCR2 bits
are cleared to 0, the pin states are read regardless of the
value stored in PDR2.
Description
Reserved
These bits are always read as 0.
When the bit is set to 1, the corresponding pin is cut off
by PMOS and it functions as the NMOS open-drain
output. When cleared to 0, the pin functions as the CMOS
output.
Reserved
These bits are always read as 1.