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HD6433644R Datasheet(PDF) 168 Page - Renesas Technology Corp |
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HD6433644R Datasheet(HTML) 168 Page - Renesas Technology Corp |
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168 / 549 page  Section 6 ROM Rev. 6.00 Sep 12, 2006 page 148 of 526 REJ09B0326-0600 6.7.8 Protect Modes There are two modes for flash memory program/erase protection: hardware protection and software protection. These two protection modes are described below. Software Protection: With software protection, setting the P or E bit in the flash memory control register (FLMCR) does not cause a transition to program mode or erase mode. Details of software protection are given below. Functions Item Description Program Erase Verify* Block protect Programming and erase protection can be set for individual blocks by settings in the erase block registers (EBR1 and EBR2). Setting EBR1 to H'F0 and EBR2 to H'00 places all blocks in the program/erase- protected state. Disabled Disabled Enabled Note: * Three modes: program-verify, erase-verify, and prewrite-verify. |
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