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7733 Datasheet(PDF) 445 Page - Renesas Technology Corp |
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7733 Datasheet(HTML) 445 Page - Renesas Technology Corp |
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445 / 940 page ![]() APPLICATIONS 7733 Group User’s Manual 17–38 17.2.4 8-bit transmission example (Clock synchronous serial I/O mode) In this example, after 8-bit data is transmitted with UART1 used, a strobe signal is output. (1) Specifications Clock synchronous serial I/O mode is selected. An internal clock is selected. Transfer rate = 2 MHz LSB first is selected. Transmit data is output at the falling edge of the transfer clock. Pin TxD1’s output structure: CMOS output A strobe signal is output from port P43 each time 8-bit data is transmitted. (Refer to Figure 17.2.16.) Completion of the transmission is determined by checking the transmission register empty flag. Fig. 17.2.15 Connection example Fig. 17.2.16 Strobe signal output timing 17.2 Serial I/O CLK1 P43 (Strobe signal) D0 D1 D2 D3 D4 D5 D6 D7 TXD1 CLK1 TXD1 P43 CLK IN STB M37733MHBXXXFP Peripheral IC |
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