HD64F2357F20V Datasheet, PDF (265/1049 Pages) Renesas Technology Corp – Hardware Manual Renesas 16-Bit Single-chip Microcomputer H8S Family / H8S/2300 Series

7.5.17 Clearing Full Address Mode
Figure 7-38 shows the procedure for releasing and initializing a channel designated for full address mode. After full
address mode has been cleared, the channel can be set to another transfer mode using the appropriate setting procedure.
Clearing full
address mode
Stop the channel
Initialize DMACR
[1] Clear both the DTE bit and the DTME bit in
DMABCRL to 0; or wait until the transfer ends
and the DTE bit is cleared to 0, then clear the
DTME bit to 0.
Also clear the corresponding DTIE bit to 0 at the
[1]
same time.
[2] Clear all bits in DMACRA and DMACRB to 0.
[3] Clear the FAE bit in DMABCRH to 0.
[2]
Clear FAE bit to 0
[3]
Initialization;
operation halted
Figure 7-38 Example of Procedure for Clearing Full Address Mode
Rev.6.00 Oct.28.2004 page 235 of 1016
REJ09B0138-0600H