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数据搜索系统，热门电子元器件搜索 |
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数据搜索系统，热门电子元器件搜索 |
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H8SX/1663R 数据表(PDF) 441 Page - Renesas Technology Corp |
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H8SX/1663R 数据表(HTML) 441 Page - Renesas Technology Corp |
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441 / 1504 page  Section 10 DMA Controller (DMAC) Rev. 2.00 Sep. 24, 2008 Page 409 of 1468 REJ09B0412-0200 Figure 10.10 shows an example of the DMA transfer timing in block transfer mode. The transfer conditions are as follows: • Address mode: single address mode • Data access size: byte • 1-block size: three bytes The block transfer mode operations in single address mode and in dual address mode are shown in figures 10.11 and 10.12, respectively. CPU CPU DMAC DMAC DMAC CPU Bus cycle TEND DREQ No CPU cycle generated Transfer cycles for one block Figure 10.10 Operations in Block Transfer Mode Transfer Address T Address B DACK Block BKSZH × data access size Figure 10.11 Operation in Single Address Mode in Block Transfer Mode (Block Area Specified) |
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