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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.
262
Read address specified by MARA
MARA=MARA+SAIDE·(–1)
Write to address specified by MARB
MARB=MARB+DAIDE·(–1)
MARB=MARB–DAIDE·(–1)
MARA=MARA–SAIDE·(–1)
No
Figure 8-15 Operation Flow in Block Transfer Mode
Start
(DTE = DTME = 1)
Transfer request?
Yes
Acquire bus
SAID
DAID
ETCRAL=ETCRAL–1
ETCRAL=H'00
Yes
Release bus
ETCRAL=ETCRAH
BLKDIR=0
Yes
DAID
DTSZ
·2
SAID
DTSZ
·2
ETCRB=ETCRB–1
ETCRB=H'0000
Yes
Clear DTE bit to 0
to end transfer
No
DTSZ
·2
DTSZ
·2
No
No
·ETCRAH
·ETCRAH
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