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M38B53M4-059FP Datasheet(PDF) 164 Page - Mitsubishi Electric Semiconductor |
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M38B53M4-059FP Datasheet(HTML) 164 Page - Mitsubishi Electric Semiconductor |
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164 / 355 page  2-76 38B5 Group User’s Manual APPLICATION 2.3 Serial I/O Figure 2.3.54 shows a control procedure of the transmission side, and Figure 2.3.55 shows a control procedure of the reception side. Fig. 2.3.54 Control procedure of transmission side SIO2STS (address 001E 16), bit0? RESET • Communication completion (address 001D16) (address 0017 16) (address 0016 16) (address 000A16), bit6 (address 000B16), bit6 P5 (address 000A 16), bit6 1 10 ms has passed ? Y N TB/RB (address 001F 16) The second byte of a transmission data 1 0 SIO2STS (address 001E 16), bit2? 1 0 Initialization SIO2CON UARTCON BRG P5 P5D 1001X0012 XX001X002 6 – 1 TB/RB (address 001F 16) The first byte of a transmission data P5 (address 000A 16), bit6 0 1 0 • Port P56 set for communication control • An interval of 10 ms generated by Timer • Communication start • Transmission data write Transmit buffer empty flag is set to “0” by this writing. • Transmission data write Transmit buffer empty flag is set to “0” by this writing. • Judgment of transferring data from Transmit buffer register to Transmit shift register (Transmit buffer empty flag) • Judgment of transferring data from Transmit buffer register to Transmit shift register (Transmit buffer empty flag) • Judgment of shift completion of Transmit shift register (Transmit shift register shift completion flag) SIO2STS (address 001E 16), bit0? 0 1 q X: This bit is not used here. Set it to “0” or “1” arbitrarily. • Serial I/O2 setting |
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