Standard Self Programming Flow - NEC V850ES/KE1+ User Manual

26.5.3 Standard self programming flow

The entire processing to rewrite the flash memory by flash self programming is illustrated below.
<R>
(a) Rewriting at once
Flash memory manipulation
Flash environment
initialization processing
Erase processing
Write processing
Internal verify processing
Flash information setting
Note 1
processing
Boot area swapping
Note 2
processing
Flash environment
end processing
End of processing
Notes 1. If a security setting is not performed, flash information setting processing does not have to be
executed.
2. If boot swap is not used, flash information setting processing and boot area swap processing do not
have to be executed.
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CHAPTER 26 FLASH MEMORY
Figure 26-17. Standard Self Programming Flow
•
Disable accessing flash area
•
Disable setting of STOP mode
•
Disable stopping clock
User's Manual U16896EJ2V0UD
(b) Rewriting in block units
Flash memory manipulation
Flash environment
initialization processing
Erase processing
Write processing
Internal verify processing
All blocks end?
No
Yes
Flash information setting
Note 1
processing
Boot area swapping
Note 2
processing
Flash environment
end processing
End of processing
•
Disable accessing flash area
•
Disable setting of STOP mode
•
Disable stopping clock