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H83069RF Datasheet(PDF) 253 Page - Renesas Technology Corp |
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H83069RF Datasheet(HTML) 253 Page - Renesas Technology Corp |
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253 / 1003 page  Rev. 5.0, 09/04, page 231 of 978 Start (DTE = DTME = 1) Transfer requested? Get bus MARA = MARA + 1 Read from MARA address Write to MARB address MARB = MARB + 1 ETCRAH = ETCRAH –1 ETCRAH = H'00 Release bus Clear DTE to 0 and end transfer ETCRAH = ETCRAL MARB = MARB –ETCRAL ETCRB = ETCRB –1 ETCRB = H'0000 Start (DTE = DTME = 1) Transfer requested? Get bus MARA = MARA + 1 Read from MARA address Write to MARB address ETCRAH = ETCRAH –1 ETCRAH = H'00 Release bus Clear DTE to 0 and end transfer ETCRB = ETCRB –1 ETCRB = H'0000 ETCRAH = ETCRAL No No No Yes Yes Yes No No No Yes Yes Yes a. DTSZ = TMS = 0 SAID = DAID = 0 SAIDE = DAIDE = 1 b. DTSZ = TMS = 0 SAID = 0 SAIDE = 1 DAIDE = 0 Figure 7.11 Block Transfer Mode Flowcharts (Examples) |
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