Datasheet

Section 7 DMA Controller (DMAC)
R01UH0310EJ0500 Rev. 5.00 Page 399 of 1384
Sep 25, 2012
H8S/2426, H8S/2426R, H8S/2424 Group
7.5.16 Clearing Full Address Mode
Figure 7.37 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
Clear FAE bit to 0
Initialization;
operation halted
[1]
[2]
[3]
[1] Clear both the DTE bit and 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 same time.
[2] Clear all bits in DMACRA and DMACRB to 0.
[3] Clear the FAE bit in DMABCRH to 0
Figure 7.37 Example of Procedure for Clearing Full Address Mode