Datasheet
RL78/L12    CHAPTER 26 FLASH MEMORY 
R01UH0330EJ0200 Rev.2.00      814 
Dec 13, 2013 
26.4 Serial Programming Method 
26.4.1 Serial programming procedure 
The following figure illustrates a flow for rewriting the code flash memory through serial programming. 
Figure 26-6. Code Flash Memory Manipulation Procedure 
Start
Manipulate code flash memory
End?
Yes
Controlling TOOL0 pin and RESET pin 
No
End
Flash memory programming 
mode is set
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