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HD6433636SW Folha de dados(PDF) 163 Page - Renesas Technology Corp

Nome de Peças HD6433636SW
Descrição Electrónicos  8-Bit Microcomputer
PDF  418 Pages
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Fabricante Electrônico  RENESAS [Renesas Technology Corp]
Página de início  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

HD6433636SW Folha de dados(HTML) 163 Page - Renesas Technology Corp

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149
Port Data Register 8 (PDR8)
Bit
76543210
P8
7
P8
6
P8
5
P8
4
P8
3
P8
2
P8
1
P8
0
Initial value
00000000
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
PDR8 is an 8-bit register that stores data for port 8 pins P8
7 to P80. If port 8 is read while PCR8
bits are set to 1, the values stored in PDR8 are directly read, regardless of the actual pin states. If
port 8 is read while PCR8 bits are cleared to 0, the pin states are read.
Upon reset, PDR8 is initialized to H'00.
Port Control Register 8 (PCR8)
Bit
76543210
PCR8
7
PCR8
6
PCR8
5
PCR8
4
PCR8
3
PCR8
2
PCR8
1
PCR8
0
Initial value
00000000
Read/Write
WWWWWWWW
PCR8 is an 8-bit register for controlling whether each of the port 8 pins P8
7 to P80 functions as an
input or output pin. Setting a PCR8 bit to 1 makes the corresponding pin an output pin, while
clearing the bit to 0 makes the pin an input pin.
Upon reset, PCR8 is initialized to H'00.
PCR8 is a write-only register. All bits are read as 1.



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