HD6433682 ETC, HD6433682 Datasheet - Page 139

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

9.1.2
PCR1 selects inputs/outputs in bit units for pins to be used as general I/O ports of port 1.
9.1.3
PDR1 is a general I/O port data register of port 1.
Bit
7
6
5
4
3
2
1
0
Bit
7
6
5
4
3
2
1
0
Bit Name
PCR17
PCR16
PCR15
PCR14
PCR12
PCR11
PCR10
Bit Name
P17
P16
P15
P14
P12
P11
P10
Port Control Register 1 (PCR1)
Port Data Register 1 (PDR1)
Initial
Value
0
0
0
0
0
0
0
Initial
Value
0
0
0
0
1
0
0
0
R/W
W
W
W
W
W
W
W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Description
When the corresponding pin is designated in PMR1 as a
general I/O pin, setting a PCR1 bit to 1 makes the
corresponding pin an output port, while clearing the bit to
0 makes the pin an input port.
Bit 3 is a reserved bit.
Description
PDR1 stores output data for port 1 pins.
If PDR1 is read while PCR1 bits are set to 1, the value
stored in PDR1 are read. If PDR1 is read while PCR1 bits
are cleared to 0, the pin states are read regardless of the
value stored in PDR1.
Bit 3 is a reserved bit. This bit is always read as 1.
Rev. 3.00, 05/03, page 109 of 472