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H8S/2214 Scheda tecnica(PDF) 304 Page - Renesas Technology Corp |
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H8S/2214 Scheda tecnica(HTML) 304 Page - Renesas Technology Corp |
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304 / 936 page ![]() Section 7 DMA Controller Rev.4.00 Sep. 18, 2008 Page 244 of 872 REJ09B0189-0400 7.5.13 Forced Termination of DMAC Operation If the DTE bit for the channel currently operating is cleared to 0, the DMAC stops on completion of the 1-byte or 1-word transfer in progress. DMAC operation resumes when the DTE bit is set to 1 again. In full address mode, the same applies to the DTME bit. Figure 7.26 shows the procedure for forcibly terminating DMAC operation by software. Forced termination of DMAC Clear DTE bit to 0 Forced termination [1] [1] Clear the DTE bit in DMABCRL to 0. If you want to prevent interrupt generation after forced termination of DMAC operation, clear the DTIE bit to 0 at the same time. Figure 7.26 Example of Procedure for Forcibly Terminating DMAC Operation |
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