h8s-2635 Renesas Electronics Corporation., h8s-2635 Datasheet - Page 896

• Manufacturer Part Number: h8s-2635
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

Section 21B ROM (H8S/2638 Group, H8S/2639 Group, H8S/2630 Group)
21B.10.2 Software Protection
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
21B-12).
Table 21B-12
Rev. 6.00 Feb 22, 2005 page 836 of 1484
REJ09B0103-0600
Item
SWE bit protection
Block specification
protection
Emulation protection
Software Protection
Description
Setting bit SWE in FLMCR1 to 0 will place
area on-chip flash memory 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.
Program
Yes
—
Yes
Functions
Erase
Yes
Yes
Yes