HD64F2357F20V Datasheet, PDF (264/1049 Pages) Renesas Technology Corp – Hardware Manual Renesas 16-Bit Single-chip Microcomputer H8S Family / H8S/2300 Series

7.5.16 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 7-37 shows the procedure for forcibly terminating DMAC operation by software.
Forced termination
of DMAC
[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.
Clear DTE bit to 0
[1]
Forced termination
Figure 7-37 Example of Procedure for Forcibly Terminating DMAC Operation
Rev.6.00 Oct.28.2004 page 234 of 1016
REJ09B0138-0600H