YR0K42378FC000BA Renesas Electronics America, YR0K42378FC000BA Datasheet - Page 386

Manufacturer Part Number

YR0K42378FC000BA

KIT EVAL FOR H8S/2378

Manufacturer

Renesas Electronics America

For Use With/related Products

Lead Free Status / RoHS Status

Contains lead / RoHS non-compliant

Section 7 DMA Controller (DMAC)

In repeat mode, operation continues until the DTE bit in DMABCRL is cleared. To end the

transfer operation, therefore, the DTE bit should be cleared to 0. A transfer end interrupt request is

not sent to the CPU or DTC. By setting the DTE bit to 1 again after it has been cleared, the

operation can be restarted from the transfer after that terminated when the DTE bit was cleared.

Figure 7.7 illustrates operation in repeat mode.

Transfer requests (activation sources) consist of A/D converter conversion end interrupts, external

requests, SCI transmission complete and reception complete interrupts, and TPU channel 0 to 5

compare match/input capture A interrupts. External requests can only be specified for channel B.

Figure 7.8 shows an example of the setting procedure for repeat mode.

Rev.7.00 Mar. 18, 2009 page 318 of 1136

REJ09B0109-0700

Figure 7.7 Operation in Repeat mode

1 byte or word transfer performed in

response to 1 transfer request

Address T = L

Address B = L + (–1)

Where : L = Value set in MAR

N = Value set in ETCR