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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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R8C/2G 数据表(PDF) 281 Page - Renesas Technology Corp |
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R8C/2G 数据表(HTML) 281 Page - Renesas Technology Corp |
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281 / 344 page  R8C/2G Group 20. Flash Memory Rev.1.00 Apr 04, 2008 Page 261 of 318 REJ09B0387-0100 20.4.4 EW1 Mode The MCU is switched to EW1 mode by setting the FMR11 bit to 1 (EW1 mode) after setting the FMR01 bit to 1 (CPU rewrite mode enabled). The FMR0 register can be used to determine when program and erase operations complete. Figure 20.12 shows How to Set and Exit EW1 Mode. Figure 20.12 How to Set and Exit EW1 Mode Write 0 to the FMR01 bit before writing 1 (CPU rewrite mode enabled)(1) Write 0 to the FMR11 bit before writing 1 (EW1 mode) Execute software commands Write 0 to the FMR01 bit (CPU rewrite mode disabled) NOTE: 1. To set the FMR01 bit to 1, write 0 to the FMR01 bit before writing 1. Do not generate an interrupt between writing 0 and 1. EW1 Mode Operating Procedure Program in ROM |
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