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SH7014 Datasheet(PDF) 559 Page - Renesas Technology Corp

Part # SH7014
Description  32-Bit RISC Microcomputer
PDF  754 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

SH7014 Datasheet(HTML) 559 Page - Renesas Technology Corp

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18. 128 kB Flash Memory (F-ZTAT)
Rev.5.00 Sep. 27, 2007 Page 525 of 716
REJ09B0398-0500
18.8.2
Software Protection
Software protection can be implemented by setting the SWE bit in FLMCR1, erase block register
1 (EBR1) 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 18.9.)
Table 18.9
Software Protection
Functions
Item
Description
Program
Erase
SWE pin protection
• Clearing the SWE bit to 0 in FLMCR1 sets
the program/erase-protected state for all
blocks.
(Execute in on-chip RAM or external
memory.)
Yes
Yes
Block specification
protection
• Erase protection can be set for individual
blocks by settings in erase block register 1
(EBR1).
• Setting EBR1 to H'00 places all blocks in the
erase-protected state.
⎯
Yes
Emulation protection
• Setting the RAMS bit to 1 in the RAM
emulation register (RAMER) places all blocks
in the program/erase-protected state.
Yes
Yes



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