upd70f3017ay Renesas Electronics Corporation., upd70f3017ay Datasheet - Page 432

• Manufacturer Part Number: upd70f3017ay
• Description: V850/sa1tm 32-/16-bit Single-chip Microcontroller
• Manufacturer: Renesas Electronics Corporation.

16.7.18 Self-programming library
executing self-programming.
and as part of the application program. When using the library, thoroughly evaluate it on the application system.
(1) Functional outline
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The V850 Series Flash Memory Self Programming Library User’s Manual is available for reference when
In this manual, the library uses the self-programming interface of the V850 Series and can be used in C as a utility
Figure 16-23 outlines the function of the self-programming library. In this figure, a rewriting module is located
in area 0 and the data in area 1 is rewritten or erased.
The rewriting module is a user program to rewrite the flash memory. The other areas can also be rewritten by
using the flash functions included in this self-programming library. The flash functions expand the entry
program in the external memory or internal RAM and call the device internal processing.
When using the self-programming library, make sure that the hardware conditions, such as the write voltage,
and the software conditions, such as interrupts, are satisfied.
Rewriting module
Flash memory
Figure 16-23. Functional Outline of Self-Programming Library
Area 1
Area 0
CHAPTER 16 FLASH MEMORY
User’s Manual U12768EJ4V1UD
Erase/write
Flash rewriting program
Self-programming
Rewriting module
library
Flash function
Flash environment