Rewriting By Self Programming; Overview - NEC V850ES/KE1+ User Manual

CHAPTER 26 FLASH MEMORY

26.5 Rewriting by Self Programming

26.5.1 Overview

The V850ES/KE1+ supports a flash macro service that allows the user program to rewrite the internal flash
memory by itself. By using this interface and a self programming library that is used to rewrite the flash memory with a
user application program, the flash memory can be rewritten by a user application transferred in advance to the
internal RAM or external memory. Consequently, the user program can be upgraded and constant data can be
rewritten in the field.
Figure 26-15. Concept of Self Programming
Application program
Self programming library
Flash function execution Flash information
Flash macro service
Erase, write
Flash memory
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