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H8SX/1663 Folha de dados(PDF) 402 Page - Renesas Technology Corp |
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H8SX/1663 Folha de dados(HTML) 402 Page - Renesas Technology Corp |
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402 / 1158 page ![]() Section 7 DMA Controller (DMAC) Rev.1.00 Jun. 07, 2006 Page 350 of 1102 REJ09B0294-0100 Figure 7.10 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 7.11 and 7.12, respectively. CPU CPU DMAC DMAC DMAC CPU Bus cycle TEND DREQ No CPU cycle generated Transfer cycles for one block Figure 7.10 Operations in Block Transfer Mode Transfer Address T Address B DACK Block BKSZH × data access size Figure 7.11 Operation in Single Address Mode in Block Transfer Mode (Block Area Specified) |
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