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HD6433635SW Datasheet(PDF) 157 Page - Renesas Technology Corp |
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HD6433635SW Datasheet(HTML) 157 Page - Renesas Technology Corp |
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157 / 418 page  143 Port Data Register 6 (PDR6) Bit 76543210 P6 7 P6 6 P6 5 P6 4 P6 3 P6 2 P6 1 P6 0 Initial value 00000000 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W PDR6 is an 8-bit register that stores data for port 6 pins P6 7 to P60. If port 6 is read while PCR6 bits are set to 1, the values stored in PDR6 are directly 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 76543210 PCR6 7 PCR6 6 PCR6 5 PCR6 4 PCR6 3 PCR6 2 PCR6 1 PCR6 0 Initial value 00000000 Read/Write WWWWWWWW PCR6 is an 8-bit register for controlling whether each of the port 6 pins P6 7 to P60 functions as an input pin or output pin. Setting a PCR6 bit to 1 makes the corresponding pin an output pin, while clearing the bit to 0 makes the pin an input pin. Upon reset, PCR6 is initialized to H'00. PCR6 is a write-only register. All bits are read as 1. Port Pull-Up Control Register 6 (PUCR6) Bit 76543210 PUCR6 7 PUCR6 6 PUCR6 5 PUCR6 4 PUCR6 3 PUCR6 2 PUCR6 1 PUCR6 0 Initial value 00000000 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W PUCR6 controls whether the MOS pull-up of each port 6 pin is on or off. When a PCR6 bit is cleared to 0, setting the corresponding PUCR6 bit to 1 turns on the MOS pull-up for the corresponding pin, while clearing the bit to 0 turns off the MOS pull-up. Upon reset, PUCR6 is initialized to H'00. |
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