r4f2426 Renesas Electronics Corporation., r4f2426 Datasheet - Page 414
r4f2426
Manufacturer Part Number
r4f2426
Description
16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.R4F2426.pdf
(1302 pages)
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Section 7 DMA Controller (DMAC)
7.5.16
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.
Rev. 1.00 Sep. 19, 2008 Page 386 of 1270
REJ09B0466-0100
Clearing Full Address Mode
Stop the channel
Clear FAE bit to 0
Initialize DMACR
operation halted
address mode
Initialization;
Figure 7.37 Example of Procedure for Clearing Full Address Mode
Clearing full
[1]
[2]
[3]
[1] Clear both the DTE bit and DTME bit in
[2] Clear all bits in DMACRA and DMACRB to 0.
[3] Clear the FAE bit in DMABCRH to 0
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.
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