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H838024 Datasheet(PDF) 261 Page - Renesas Technology Corp

Part # H838024
Description  Renesas 8-Bit Single-Chip Microcomputer Super Low Power Series
PDF  697 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

H838024 Datasheet(HTML) 261 Page - Renesas Technology Corp

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Section 8 I/O Ports
Rev. 7.00 Mar 10, 2005 page 219 of 652
REJ09B0042-0700
Port Data Register 6 (PDR6)
Bit
Initial value
Read/Write
7
P6
0
R/W
6
P6
0
R/W
5
P6
0
R/W
4
P6
0
R/W
3
P6
0
R/W
0
P6
0
R/W
2
P6
0
R/W
1
P6
0
R/W
21
0
54
76
3
PDR6 is an 8-bit register that stores data for port 6 pins P67 to P60.
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.
Port Control Register 6 (PCR6)
Bit
Initial value
Read/Write
7
PCR67
0
W
6
PCR66
0
W
5
PCR65
0
W
4
PCR64
0
W
3
PCR63
0
W
0
PCR60
0
W
2
PCR62
0
W
1
PCR61
0
W
PCR6 is an 8-bit register for controlling whether each of the port 6 pins P67 to P60 functions as an
input pin or output pin.
Setting a PCR6 bit to 1 makes the corresponding pin (P67 to P60) an output pin, while clearing the
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 is always read as all 1s.



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