hd66100 Renesas Electronics Corporation., hd66100 Datasheet - Page 172

• Manufacturer Part Number: hd66100
• Description: H8/3867 Series
• Manufacturer: Renesas Electronics Corporation.

1. Port data register 6 (PDR6)
PDR6 is an 8-bit register that stores data for port 6 pins P6
If port 6 is read while PCR6 bits are set to 1, the values stored in PDR6 are read, regardless of the
actual pin states. If port 6 is read while PCR6 bits are cleared to 0, the pin states are read.
Upon reset, PDR6 is initialized to H'00.
2. Port control register 6 (PCR6)
PCR6 is an 8-bit register for controlling whether each of the port 6 pins P6
input pin or output pin.
Setting a PCR6 bit to 1 makes the corresponding pin (P6
bit to 0 makes the pin an input pin. PCR6 and PDR6 settings are valid when the corresponding
pins are designated for general-purpose input/output by bits SGS3 to SGS0 in LPCR.
Upon reset, PCR6 is initialized to H'00.
PCR6 is a write-only register, which always reads all 1s.
Bit
Initial value
Read/Write
Bit
Initial value
Read/Write
PCR6
R/W
P6
W
7
0
7
0
7
7
PCR6
R/W
P6
W
6
0
6
0
6
6
PCR6
R/W
P6
W
5
0
5
0
5
5
PCR6
R/W
P6
W
4
0
4
0
4
4
7
PCR6
to P6
7
R/W
P6
to P6
W
3
0
3
0
3
0
3
) an output pin, while clearing the
0
.
PCR6
R/W
P6
W
2
0
2
0
2
2
7
to P6
PCR6
R/W
P6
W
1
0
1
0
0
1
functions as an
1
PCR6
R/W
P6
W
0
0
0
0
0
0
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