HD6433045 HITACHI [Hitachi Semiconductor], HD6433045 Datasheet - Page 248
HD6433045
Manufacturer Part Number
HD6433045
Description
Hitachi Single-Chip Microcomputer
Manufacturer
HITACHI [Hitachi Semiconductor]
Datasheet
1.HD6433045.pdf
(867 pages)
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8.4.12 Aborting a DMA Transfer
When the DTE bit in an active channel is cleared to 0, the DMAC halts after transferring the
current byte or word. The DMAC starts again when the DTE bit is set to 1. In full address mode,
the DTME bit can be used for the same purpose. Figure 8-22 shows the procedure for aborting a
DMA transfer by software.
DMA transfer aborted
DMA transfer abort
Set DTCR
Figure 8-22 Procedure for Aborting a DMA Transfer
1
234
1. Clear the DTE bit to 0 in DTCR.
To avoid generating an interrupt when
aborting a DMA transfer, clear the DTIE
bit to 0 simultaneously.
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