Renesas rl78 User Manual
RL78/G1A
CHAPTER 25 FLASH MEMORY
Figure 25-10. Example of Executing Boot Swapping
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Boot
cluster 1
cluster 1
Booted by boot cluster 0
Block number
Erasing block 4
Boot
cluster 0
cluster 0
User program
0 1 0 0 0 H
0 0 0 0 0 H
Boot program
User program
User program
User program
Boot program
Boot program
Boot program
User program
User program
User program
Boot program
Boot program
Boot program
Boot program
Boot program
Boot program
Boot program
Boot program
User program
User program
User program
Boot program
Boot program
Boot program
Boot program
Boot program
Boot program
Boot program
Boot program
Erasing block 5
Erasing block 6
Erasing block 7
Boot program
Boot program
Boot program
Boot program
Boot program
Boot program
Boot program
Boot program
Boot program
Boot program
Boot program
Boot program
Boot program
Boot program
Booted by boot cluster 1
0 1 0 0 0 H
0 0 0 0 0 H
Erasing block 6
Erasing block 7
Erasing block 4
Erasing block 5
Boot swap
Writing blocks 4 to 7
Writing blocks 4 to 7
0 1 0 0 0 H
0 0 0 0 0 H
New boot program
New user program
New boot program
New boot program
New boot program
New boot program
New boot program
New boot program
New boot program
New boot program
New boot program
New boot program
New boot program
New boot program
New boot program
New boot program
New boot program
New boot program
New boot program
New boot program
New boot program
New boot program
New boot program
New boot program
New boot program
New boot program
New boot program
New boot program
New boot program
New user program
New user program
New user program
R01UH0305EJ0200 Rev.2.00
818
Jul 04, 2013