Forced Termination Of Dmac Operation - Renesas H8S/2633 Series Hardware Manual

8.5.16

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 8-37 shows the procedure for forcibly terminating DMAC operation by software.
Forced termination
of DMAC
Clear DTE bit to 0
Forced termination
Figure 8-37 Example of Procedure for Forcibly Terminating DMAC Operation
[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.
[1]
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