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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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M16C/26 датащи(PDF) 157 Page - Renesas Technology Corp |
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M16C/26 датащи(HTML) 157 Page - Renesas Technology Corp |
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157 / 239 page  Serial Interface Special Function 151 Renesas Technology Corp. 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. • Clock Phase Setting With bit 1 of UART2 special mode register 3 (addresses 036D16, 037116 and 037516) and bit 6 of UART2 transmission-reception control register 0 (addresses 03A416, 02AC16 and 037C16), four com- binations of transfer clock phase and polarity can be selected. Bit 6 of UART2 transmission-reception control register 0 sets transfer clock polarity, whereas bit 1 of U2SMR3 register sets transfer clock phase. Transfer clock phase and polarity must be the same between the master and slave involved in the transfer. (a) Master (Internal Clock) Figure 1.15.33 shows the transmission and reception timing. (b) Slave (External Clock) • Figure 1.15.34 shows the timing when bit 1 of address 037516)=“0” • Figure 1.15.35 shows the timing when bit 1 of address037516)=“1” Data output timing Data input timing D0 D1 D2 D3 D4 D6 D7 D5 Clock output (CKPOL=0, CKPH=0) "H" "L" Clock output (CKPOL=1, CKPH=0) "H" "L" Clock output (CKPOL=0, CKPH=1) "H" "L" Clock output (CKPOL=1, CKPH=1) "H" "L" "H" "L" Figure 1.15.33. The transmission and reception timing in master mode (internal clock) |
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