HD6473032F16 Datasheet, PDF (621/847 Pages) Renesas Technology Corp – Hardware Manual Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series

Section 18 ROM
18.8 Protection
There are three kinds of flash memory program/erase protection: hardware protection, software
protection, and error protection.
18.8.1 Hardware Protection
Hardware protection refers to a state in which programming/erasing of flash memory is forcibly
disabled or aborted. Hardware protection is reset by settings in flash memory control register 1
(FLMCR1), flash memory control register 2 (FLMCR2), erase block register 1 (EBR1), and erase
block register 2 (EBR2). In the error-protected state, the FLMCR1, FLMCR2, EBR1, and EBR2
settings are retained; the P1 and P2 bits can be set, but a transition is not made to program mode or
erase mode. (See table 18.10.)
Rev. 3.00 Mar 21, 2006 page 591 of 814
REJ09B0302-0300