HD6433682 ETC, HD6433682 Datasheet - Page 146

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

9.3
Port 3 is a general I/O port. Each pin of the port 3 is shown in figure 9.3.
Port 3 has the following registers.
9.3.1
PCR3 selects inputs/outputs in bit units for pins to be used as general I/O ports of port 3.
Rev. 3.00, 05/03, page 116 of 464
Bit
7
6
5
4
3
2
1
0
Port control register 3 (PCR3)
Port data register 3 (PDR3)
Bit Name
PCR37
PCR36
PCR35
PCR34
PCR33
PCR32
PCR31
PCR30
Port Control Register 3 (PCR3)
Port 3
Initial
Value
0
0
0
0
0
0
0
0
Figure 9.3 Port 3 Pin Configuration
R/W
W
W
W
W
W
W
W
W
Port 3
Description
Setting a PCR3 bit to 1 makes the corresponding pin an
output port, while clearing the bit to 0 makes the pin an
input port.
P37
P36
P35
P34
P33
P32
P31
P30