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HD64F36034 Datasheet(PDF) 169 Page - Renesas Technology Corp |
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HD64F36034 Datasheet(HTML) 169 Page - Renesas Technology Corp |
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169 / 592 page  Section 9 I/O Ports Rev. 4.00 Mar. 15, 2006 Page 137 of 556 REJ09B0026-0400 9.7 Port 9 Port 9 is a general I/O port also functioning as a TinyCAN I/O pin and an SSU I/O pin. Each pin of the port 9 is shown in figure 9.7. P97/SSO P96/SSI P95/SSCK P94/ SCS P93 P92/HTXD P91/HRXD P90 Port 9 Figure 9.7 Port 9 Pin Configuration Port 9 has the following registers. • Port control register 9 (PCR9) • Port data register 9 (PDR9) 9.7.1 Port Control Register 9 (PCR9) PCR9 selects inputs/outputs in bit units for pins to be used as general I/O ports of port 9. Bit Bit Name Initial Value R/W Description 7 6 5 4 3 2 1 0 PCR97 PCR96 PCR95 PCR94 PCR93 PCR92 PCR91 PCR90 0 0 0 0 0 0 0 0 W W W W W W W W When each of the port 9 pins P97 to P90 functions as a general I/O port, setting a PCR9 bit to 1 makes the corresponding pin an output port, while clearing the bit to 0 makes the pin an input port. |
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