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SH7041A Datasheet(PDF) 182 Page - Renesas Technology Corp |
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SH7041A Datasheet(HTML) 182 Page - Renesas Technology Corp |
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182 / 923 page ![]() 144 Yes No Yes Yes Yes Yes No No No No Start Initial settings DTMR, DTCR, DTIAR, DTSAR, DTDAR Transfer request generated? NMIF = AE = 0? DTC vector read Transfer information read DTCRA = DTCRA – 1 (normal/block transfer mode) DTCRAL = DTCRAL – 1 (repeat mode) DTSAR, DTDAR update DTCRB = DTCRB – 1 (block transfer mode) Transfer (1 transfer unit) Block transfer mode and DTCRB ≠ 0? Transfer information write NMI or address error End Transfer information write CHNE = 0? NMIF • NMIM + AE = 1? When DISEL = 1 or DTCRA = 0 (normal/block transfer mode) When DISEL = 1 (repeat transfer mode) CPU interrupt request Figure 8.2 DTC Operation Flowchart |
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