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H8/3028F 数据表(PDF) 268 Page - Renesas Technology Corp |
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H8/3028F 数据表(HTML) 268 Page - Renesas Technology Corp |
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268 / 923 page ![]() Rev. 2.00, 09/03, page 238 of 890 7.4.12 Aborting a DMAC Transfer When the DTE bit in an active channel is cleared to 0, the DMAC halts after transferring the current byte or word. The DMAC starts again when the DTE bit is set to 1. In full address mode, the DTME bit can be used for the same purpose. Figure 7.22 shows the procedure for aborting a DMAC transfer by software. DMAC transfer abort Set DTCR DMAC transfer aborted 1 1. Clear the DTE bit to 0 in DTCR. To avoid generating an interrupt when aborting a DMA transfer, clear the DTIE bit to 0 simultaneously. Figure 7.22 Procedure for Aborting a DMAC Transfer |
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