HD6432633 Datasheet, PDF (350/1453 Pages) Renesas Technology Corp – Series of Microcomputers (MCUs: microcomputer units)

Start
(DTE = DTME = 1)
Transfer request?
No
Yes
Acquire bus
Read address specified by MARA
MARA=MARA+SAIDE·(–1)^SAID·2^DTSZ
Write to address specified by MARB
MARB=MARB+DAIDE·(–1)^DAID ·2^DTSZ
ETCRAL=ETCRAL–1
ETCRAL=H'00
No
Yes
Release bus
ETCRAL=ETCRAH
BLKDIR=0
No
Yes
MARB=MARB–DAIDE·(–1)^DAID·2^DTSZ·ETCRAH
MARA=MARA–SAIDE·(–1)^SAID·2^DTSZ·ETCRAH
ETCRB=ETCRB–1
No
ETCRB=H'0000
Yes
Clear DTE bit to 0
to end transfer
Figure 8-15 Operation Flow in Block Transfer Mode
Transfer requests (activation sources) consist of A/D converter conversion end interrupts, external
requests, SCI transmission complete and reception complete interrupts, and TPU channels 0 to 5
compare match/input capture A interrupts.
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