Renesas RL78/D1A User Manual

RL78/F13, F14 CHAPTER 30 FLASH MEMORY
R01UH0368EJ0210 Rev.2.10 1644
Dec 10, 2015
Table 30-12. Relationship Between Enabling Security Function and Command
(1) During serial programming
Valid Security Executed Command
Block Erase Write
Prohibition of block erase Blocks cannot be erased.
Can be performed.
Note
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.
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
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.
Remark To prohibit writing and erasing during self-programming, use the flash shield window function (see 30.6.3 Flash
shield window function for detail).
Table 30-13. Setting Security in Each Programming Mode
(1) Serial programming
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.
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) Self programming
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.

Renesas RL78/D1A Specifications

General

Brand	Renesas
Model	RL78/D1A
Category	Computer Hardware
Language	English