Datasheet

V850ES/JG3-H, V850ES/JH3-H CHAPTER 31 FLASH MEMORY
R01UH0042EJ0500 Rev.5.00 Page 1359 of 1513
Aug 12, 2011
Table 31-4. Security Setting
Erase, Write, Read Operations When Each Security Is Set
(√: Executable, ×: Not Executable, −: Not Supported)
Notes on Security Setting
Function
On-Board/
Off-Board Programming
Self Programming
On-Board/
Off-Board
Programming
Self Programming
Block erase
command
prohibit
Block erase command: ×
Chip erase command: √
Program command: √
Read command: √
Block erasure (FlashBlockErase): √
Chip erasure: −
Write (FlashWordWrite): √
Read (FlashWordRead): √
Setting of
prohibition can be
initialized by chip
erase command.
Chip erase
command
prohibit
Block erase command: ×
Chip erase command: ×
Program command: √
Note 1
Read command: √
Block erasure (FlashBlockErase): √
Chip erasure: −
Write (FlashWordWrite): √
Read (FlashWordRead): √
Setting of
prohibition cannot
be initialized.
Program
command
prohibit
Block erase command: ×
Chip erase command: √
Program command: ×
Read command: √
Block erasure (FlashBlockErase): √
Chip erasure: −
Write (FlashWordWrite): √
Read (FlashWordRead): √
Setting of
prohibition can be
initialized by chip
erase command.
Read
command
prohibit
Block erase command: √
Chip erase command: √
Program command: √
Read command: ×
Block erasure (FlashBlockErase): √
Chip erasure: −
Write (FlashWordWrite): √
Read (FlashWordRead): √
Setting of
prohibition can be
initialized by chip
erase command.
Supported only
when setting is
changed from
enable to prohibit
Boot area
rewrite
prohibit
Block erase command: ×
Note 2
Chip erase command: ×
Program command: ×
Note 2
Read command: √
Block erasure (FlashBlockErase): ×
Note 2
Chip erasure: −
Write (FlashWordWrite): ×
Note 2
Read (FlashWordRead): √
Setting of
prohibition cannot
be initialized.
Supported only
when setting is
changed from
enable to
prohibit
Note 3
Notes 1. In this case, since the erase command is invalid, data different from the data already written in the flash
memory cannot be written.
2. Executable except in boot area.
3. The boot area rewrite prohibit function becomes effective after the reset input.