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R5F72115D160FPV Datasheet(PDF) 342 Page - Renesas Technology Corp |
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R5F72115D160FPV Datasheet(HTML) 342 Page - Renesas Technology Corp |
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342 / 1228 page ![]() Section 9 Direct Memory Access Controller (DMAC) Rev. 2.00 May. 08, 2008 Page 318 of 1200 REJ09B0344-0200 9.3.5 DMA Reload Source Address Registers (RSAR) The DMA reload source address registers (RSAR) are 32-bit readable/writable registers. When the reload function is enabled, the RSAR value is written to the source address register (SAR) at the end of the current DMA transfer. In this case, a new value for the next DMA transfer can be preset in RSAR during the current DMA transfer. When the reload function is disabled, RSAR is ignored. To transfer data of 16-bit or 32-bit width, specify the address with 16-bit or 32-bit address boundary respectively. To transfer data in units of 16 bytes, set a value at a 16-byte boundary. RSAR is initialized to H'00000000 by a reset and retains the value in software standby mode and module standby mode. 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 0000000000000000 R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W 0000000000000000 R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W Bit: Initial value: R/W: Bit: Initial value: R/W: |
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