upd70f3017ay Renesas Electronics Corporation., upd70f3017ay Datasheet - Page 413

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

16.7 Flash Memory Programming by Self-Programming
this function, the flash memory can be rewritten by a user application. This self-programming function can also be
used to upgrade the program in the field.
16.7.1 Outline of self-programming
(device’s internal processing) on the program placed in other than the internal ROM area (000000H to 0FFFFFH). To
place the program in the block 0 space and internal ROM area, copy the program to areas other than 000000H to
0FFFFFH (e.g. internal RAM area) and execute the program to call the self-programming function.
using the flash programming mode control register (FLPMC).
The V850/SA1 supports a self-programming function to rewrite the flash memory using a user program. By using
Self-programming implements erasure and writing of the flash memory by calling the self-programming function
To call the self-programming function, change the operating mode from normal mode to self-programming mode
1FFFFH
00000H
Normal operation mode
Flash memory
128 KB
Figure 16-14. Outline of Self-Programming (1/2)
FLPMC ← 02H
FLPMC ← 00H
(a)
CHAPTER 16 FLASH MEMORY
User’s Manual U12768EJ4V1UD
µ
PD70F3015B, 70F3015BY
(delete/write routine
Self-programming
incorporated)
function
1FFFFH
00000H
Self-programming mode
Flash memory
Erase area
(128 KB)
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