h8s-2646 Renesas Electronics Corporation., h8s-2646 Datasheet - Page 731
h8s-2646
Manufacturer Part Number
h8s-2646
Description
Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.H8S-2646.pdf
(1165 pages)
- Current page: 731 of 1165
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20.8.2
Software protection can be implemented by setting the SWE bit in FLMCR1, erase block register
1 (EBR1), erase block register 2 (EBR2), and the RAMS bit in the RAM emulation register
(RAMER). When software protection is in effect, setting the P or E bit in flash memory control
register 1 (FLMCR1), does not cause a transition to program mode or erase mode. (See table
20.9.)
Table 20.9 Software Protection
Item
SWE bit protection
Block specification
protection
Emulation protection •
Software Protection
Description
•
•
•
Setting bit SWE in FLMCR1 to 0 will place
area H'000000 to H'01FFFF in the
program/erase-protected state. (Execute the
program in the on-chip RAM, external
memory)
Erase protection can be set for individual
blocks by settings in erase block register 1
(EBR1) and erase block register 2 (EBR2).
Setting EBR1 and EBR2 to H'00 places all
blocks in the erase-protected state.
Setting the RAMS bit to 1 in the RAM
emulation register (RAMER) places all
blocks in the program/erase-protected state.
Rev. 5.00 Sep 22, 2005 page 705 of 1136
Program
Yes
—
Yes
Functions
REJ09B0257-0500
Section 20 ROM
Erase
Yes
Yes
Yes
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