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HD64F2145 Datasheet(PDF) 201 Page - Renesas Technology Corp |
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HD64F2145 Datasheet(HTML) 201 Page - Renesas Technology Corp |
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201 / 829 page  Rev. 2.0, 08/02, page 161 of 788 8.2.2 Port 1 Data Register (P1DR) P1DR stores output data for the port 1 pins. Bit Bit Name Initial Value R/W Description 7 P17DR 0 R/W 6 P16DR 0 R/W 5 P15DR 0 R/W 4 P14DR 0 R/W 3 P13DR 0 R/W 2 P12DR 0 R/W 1 P11DR 0 R/W 0 P10DR 0 R/W If a port 1 read is performed while the P1DDR bits are set to 1, the P1DR values are read. If a port 1 read is performed while the P1DDR bits are cleared to 0, the pin states are read. 8.2.3 Port 1 Pull-Up MOS Control Register (P1PCR) P1PCR controls the on/off status of the port 1 on-chip input pull-up MOSs. Bit Bit Name Initial Value R/W Description 7 P17PCR 0 R/W 6 P16PCR 0 R/W 5 P15PCR 0 R/W 4 P14PCR 0 R/W 3 P13PCR 0 R/W 2 P12PCR 0 R/W 1 P11PCR 0 R/W 0 P10PCR 0 R/W When the pins are in input state, the corresponding input pull-up MOS is turned on when a P1PCR bit is set to 1. |
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