Forced Termination Of Dmac Operation - Renesas H8S Series Hardware Manual

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
Clear DTE bit to 0
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
of DMAC
[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.