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M32C/8B bảng dữ liệu(PDF) 316 Page - Renesas Technology Corp |
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M32C/8B bảng dữ liệu(HTML) 316 Page - Renesas Technology Corp |
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316 / 406 page ![]() Under development M32C/8B Group 23. Flash Memory Preliminary specification Specifications in this manual are tentative and subject to change. REJ09B0450-0050 Rev.0.50 Oct 31, 2008 Page 299 of 385 23. Flash Memory CPU rewrite mode, standard serial I/O mode, and parallel I/O mode can be used to erase and program the flash memory. Table 23.1 lists specifications of the flash memory. Table 23.1 Flash Memory Specifications NOTE: 1. The erase and program endurance is the number of erase operations performed on individual blocks. For example, if the block A is erased without programming, the erased and program count stands at one for the block A. Item Specification Erase unit On a block basis (See Figure 23.1) Program unit 4 bytes Erase and program endurance 100 times(1) Erase and program control method Software commands control erasing and programming on the flash memory Number of commands 9 commands Protect function • Lock bit protect function (All modes) • ROM code protect function (Parallel I/O mode) • ID code check function (Standard serial I/O mode) Flash memory stop function Flash memory can be stopped and initialized Flash memory rewrite mode • CPU rewrite mode • Standard serial I/O mode • Parallel I/O mode |
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