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H8SX/1663R Datenblatt(PDF) 412 Page - Renesas Technology Corp |
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H8SX/1663R Datenblatt(HTML) 412 Page - Renesas Technology Corp |
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412 / 1504 page ![]() Section 10 DMA Controller (DMAC) Rev. 2.00 Sep. 24, 2008 Page 380 of 1468 REJ09B0412-0200 Channel 3: • DMA source address register_3 (DSAR_3) • DMA destination address register_3 (DDAR_3) • DMA offset register_3 (DOFR_3) • DMA transfer count register_3 (DTCR_3) • DMA block size register_3 (DBSR_3) • DMA mode control register_3 (DMDR_3) • DMA address control register_3 (DACR_3) • DMA module request select register_3 (DMRSR_3) 10.3.1 DMA Source Address Register (DSAR) DSAR is a 32-bit readable/writable register that specifies the transfer source address. DSAR updates the transfer source address every time data is transferred. When DDAR is specified as the destination address (the DIRS bit in DACR is 1) in single address mode, DSAR is ignored. Although DSAR can always be read from by the CPU, it must be read from in longwords and must not be written to while data for the channel is being transferred. 31 0 R/W 30 0 R/W 29 0 R/W 28 0 R/W 27 0 R/W 24 0 R/W 26 0 R/W 25 0 R/W Bit Bit Name Initial Value R/W 23 0 R/W 22 0 R/W 21 0 R/W 20 0 R/W 19 0 R/W 16 0 R/W 18 0 R/W 17 0 R/W Bit Bit Name Initial Value R/W 15 0 R/W 14 0 R/W 13 0 R/W 12 0 R/W 11 0 R/W 8 0 R/W 10 0 R/W 9 0 R/W Bit Bit Name Initial Value R/W 7 0 R/W 6 0 R/W 5 0 R/W 4 0 R/W 3 0 R/W 0 0 R/W 2 0 R/W 1 0 R/W Bit Bit Name Initial Value R/W |
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