![Renesas RL78/G1H User Manual Download Page 842](http://html1.mh-extra.com/html/renesas/rl78-g1h/rl78-g1h_user-manual_1440449842.webp)
CHAPTER 27 FLASH MEMORY
Page 824 of 920
Table 27 - 10 Relationship Between Enabling Security Function and Command
(1) During serial programming
Note
Confirm that no data has been written to the write area. Because data cannot be erased after block erase is prohibited,
do not write data if the data has not been erased.
(2) During self-programming
Remark
To prohibit writing and erasing during self-programming, use the flash shield window function (see
for detail).
Table 27 - 11 Setting Security in Each Programming Mode
(1) During serial programming
Caution
Releasing the setting of prohibition of writing is enabled only when the security is not set as the block erase
prohibition and the boot cluster 0 rewrite prohibition with code flash memory area and data flash memory area
being blanks.
(2) During self-programming
Valid Security
Executed Command
Block Erase
Write
Prohibition of block erase
Blocks cannot be erased.
Can be performed.
Prohibition of writing
Blocks can be erased.
Cannot be performed.
Prohibition of rewriting boot cluster 0
Boot cluster 0 cannot be erased.
Boot cluster 0 cannot be written.
Valid Security
Executed Command
Block Erase
Write
Prohibition of block erase
Blocks can be erased.
Can be performed.
Prohibition of writing
Prohibition of rewriting boot cluster 0
Boot cluster 0 cannot be erased.
Boot cluster 0 cannot be written.
Security
Security Setting
How to Disable Security Setting
Prohibition of block erase
Set via GUI of dedicated flash memory
programmer, etc.
Cannot be disabled after set.
Prohibition of writing
Set via GUI of dedicated flash memory
programmer, etc.
Prohibition of rewriting boot cluster 0
Cannot be disabled after set.
Security
Security Setting
How to Disable Security Setting
Prohibition of block erase
Set by using flash self-programming
library.
Cannot be disabled after set.
Prohibition of writing
Cannot be disabled during self-
programming
(set via GUI of dedicated flash memory
programmer, etc. during serial
programming).
Prohibition of rewriting boot cluster 0
Cannot be disabled after set.
Summary of Contents for RL78/G1H
Page 941: ...R01UH0575EJ0120 RL78 G1H...