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R8C2K Datasheet(PDF) 397 Page - Renesas Technology Corp |
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R8C2K Datasheet(HTML) 397 Page - Renesas Technology Corp |
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397 / 471 page  R8C/2K Group, R8C/2L Group 20. Flash Memory Rev.1.10 Dec 21, 2007 Page 380 of 450 REJ09B0406-0110 Figure 20.14 Block Erase Command in EW0 Mode (When Suspend Function Enabled) Start Write the command code 20h Write D0h to any block address FMR00 = 1 ? Full status check Block erase completed No Yes FMR40 = 1 NOTES: 1. In EW0 mode, the interrupt vector table and interrupt routine for interrupts to be used should be allocated to the RAM area. 2. When no interrupt is used, the instruction to enable interrupts is not needed. 3. td(SR-SUS) is needed until erase is suspended after the FMR41 bit in the FMR4 register is set to 1. Maskable interrupt(1) REIT Yes FMR41 = 0 FMR43 = 1 ? FMR46 = 1 ? No No I = 1 (enable interrupt)(2) FMR41 = 1(3) Yes Access flash memory Access flash memory |
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