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HD64F2357VF13 Datasheet, PDF (238/1049 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents | |||
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Figure 7-11 illustrates operation in normal mode.
Address TA
Transfer
Address TB
Address BA
Legend:
Address TA = LA
Address TB = LB
Address BA = LA + SAIDE ⢠(â1)SAID ⢠(2DTSZ ⢠(Nâ1))
Address BB = LB + DAIDE ⢠(â1)DAID ⢠(2DTSZ ⢠(Nâ1))
Where : LA = Value set in MARA
LB = Value set in MARB
N = Value set in ETCRA
Address BB
Figure 7-11 Operation in Normal Mode
Transfer requests (activation sources) are external requests and auto-requests.
With auto-request, the DMAC is only activated by register setting, and the specified number of transfers are performed
automatically. With auto-request, cycle steal mode or burst mode can be selected. In cycle steal mode, the bus is released
to another bus master each time a transfer is performed. In burst mode, the bus is held continuously until transfer ends.
Rev.6.00 Oct.28.2004 page 208 of 1016
REJ09B0138-0600H
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