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M16C/26 датащи(PDF) 128 Page - Renesas Technology Corp |
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M16C/26 датащи(HTML) 128 Page - Renesas Technology Corp |
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128 / 239 page ![]() Renesas Technology Corp. Clock Synchronous Serial I/O Mode 122 M16C/26 Group SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER Under development Preliminary Specifications Rev. 0.9 Specifications in this manual are tentative and subject to change. Figure 1.15.11. UARTi transmit/receive mode register in clock synchronous serial I/O mode Symbol Address When reset U2MR 0378 16 0016 CKDIR UART2 transmit/receive mode register Internal/external clock select bit STPS PRY PRYE IOPOL 0 : Internal clock 1 : External clock (Note 2) Bit name Function Bit symbol W R b7 b6 b5 b4 b3 b2 b1 b0 01 0 SMD0 SMD1 SMD2 Serial I/O mode select bit 0 0 1 : Clock synchronous serial I/O mode b2 b1 b0 0 Invalid in clock synchronous serial I/O mode TxD, RxD I/O polarity reverse bit (Note 1) 0 : No reverse 1 : Reverse Note 1: Usually set to 0 . Note 2: Set the corresponding port direction register to 0 . Symbol Address When reset UiMR(i=0 to 1) 03A016, 03A816 0016 CKDIR UARTi transmit/receive mode register (i=0 to 1) Internal/external clock select bit STPS PRY PRYE Reserved 0 : Internal clock 1 : External clock (Note) Bit name Function Bit symbol W R b7 b6 b5 b4 b3 b2 b1 b0 01 0 SMD0 SMD1 SMD2 Serial I/O mode select bit 0 0 1 : Clock synchronous serial I/O mode b2 b1 b0 0 Invalid in clock synchronous serial I/O mode Must always be "0". Note: Set the corresponding port direction register to "0". |
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