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R8C2K Datasheet(PDF) 395 Page - Renesas Technology Corp |
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R8C2K Datasheet(HTML) 395 Page - Renesas Technology Corp |
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395 / 471 page  R8C/2K Group, R8C/2L Group 20. Flash Memory Rev.1.10 Dec 21, 2007 Page 378 of 450 REJ09B0406-0110 Figure 20.12 Program Command in EW0 Mode (When Suspend Function Enabled) Start Write the command code 40h Write data to the write address FMR44 = 0 ? Full status check Program 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 program is suspended after the FMR42 bit in the FMR4 register is set to 1. Maskable interrupt(1) FMR46 = 1 ? REIT Yes FMR42 = 1(3) FMR42 = 0 Access flash memory FMR44 = 1 ? Yes No No I = 1 (enable interrupt)(2) Access flash memory |
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