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M38B53M4-059FP 데이터시트(PDF) 148 Page - Mitsubishi Electric Semiconductor |
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M38B53M4-059FP 데이터시트(HTML) 148 Page - Mitsubishi Electric Semiconductor |
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148 / 355 page ![]() 2-60 38B5 Group User’s Manual APPLICATION 2.3 Serial I/O Fig. 2.3.35 Registers setting relevant to transmission side Figure 2.3.35 shows the registers setting relevant to the transmission side, and Figure 2.3.36 shows the registers setting relevant to the reception side. Transmission side BRG 0716 0 INTEDGE SIO2STS UART control register (address 001716) 0 UARTCON P55/TxD pin: CMOS output BRG clock: f(XIN) Serial I/O2 clock: SCLK21 0 0 1 1 0 1 0 0 SIO2CON 0 Serial I/O2 status register (address 001E16) Transmit buffer empty flag • Confirm that the data has been transferred from Transmit buffer register to Transmit shift register. • When this flag is “1”, it is possible to write the next transmission data in to Transmit buffer register. Transmit shift register shift completion flag Confirm completion of transmitting 1-byte data with this flag. “1” : Transmit shift completed Serial I/O2 control register (address 001D16) BRG count source: f(XIN) Synchronous clock: BRG/4 SRDY2 output not used Transmit enabled Receive disabled Clock synchronous serial I/O Serial I/O2 enabled Interrupt edge selection register (address 003A16) INT0 falling edge active Baud rate generator (address 001616) Set “division ratio – 1” |
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