UPD78F0411GA-GAM-AX Datasheet, PDF (523/564 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

CHAPTER 24 FLASH MEMORY
Table 24-9. Relationship Between Enabling Security Function and Command
(1) During on-board/off-board programming
Valid Security
Prohibition of batch erase (chip erase)
Prohibition of block erase
Prohibition of writing
Prohibition of rewriting boot cluster 0
Executed Command
Batch Erase (Chip Erase)
Block Erase
Write
Cannot be erased in batch Blocks cannot be
Can be erased in batch. ^erased.
Can be performed^Note.
Can be performed.
Cannot be performed.
Cannot be erased in batch Boot cluster 0 cannot be Boot cluster 0 cannot be
erased.
written.
Note Confirm that no data has been written to the write area. Because data cannot be erased after batch erase
(chip erase) is prohibited, do not write data if the data has not been erased.
(2) During self programming
Valid Security
Prohibition of batch erase (chip erase)
Prohibition of block erase
Prohibition of writing
Prohibition of rewriting boot cluster 0
Block Erase
Blocks can be erased.
Executed Command
Write
Can be performed.
Boot cluster 0 cannot be erased.
Boot cluster 0 cannot be written.
Table 24-10 shows how to perform security settings in each programming mode.
Table 24-10. Setting Security in Each Programming Mode
(1) On-board/off-board programming
Security
Prohibition of batch erase (chip erase)
Prohibition of block erase
Prohibition of writing
Prohibition of rewriting boot cluster 0
Security Setting
Set via GUI of dedicated flash memory
programmer, etc.
How to Disable Security Setting
Cannot be disabled after set.
Execute batch erase (chip erase)
command
Cannot be disabled after set.
(2) Self programming
Security
Prohibition of batch erase (chip erase)
Prohibition of block erase
Prohibition of writing
Security Setting
Set by using information library.
Prohibition of rewriting boot cluster 0
How to Disable Security Setting
Cannot be disabled after set.
Execute batch erase (chip erase)
command during on-board/off-board
programming (cannot be disabled during
self programming)
Cannot be disabled after set.
User’s Manual U18698EJ1V0UD
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