UPD78F1502AGK-GAK-AX Datasheet, PDF (856/1031 Pages) Renesas Technology Corp – 16-Bit Single-Chip Microcontrollers

78K0R/Lx3
CHAPTER 27 FLASH MEMORY
27.6 Programming Method
27.6.1 Controlling flash memory
The following figure illustrates the procedure to manipulate the flash memory.
Figure 27-7. Flash Memory Manipulation Procedure
Start
Controlling FLMD0 pin and RESET pin
Flash memory programming
mode is set
Manipulate flash memory
End?
No
Yes
End
27.6.2 Flash memory programming mode
To rewrite the contents of the flash memory by using the dedicated flash memory programmer, set the 78K0R/Lx3
microcontrollers in the flash memory programming mode. To set the mode, set the FLMD0 pin and TOOL0 pin to VDD and
clear the reset signal.
Change the mode by using a jumper when writing the flash memory on-board.
Figure 27-8. Flash Memory Programming Mode
5.5 V
VDD
0V
VDD
RESET
0V
VDD
FLMD0
0V
VDD
TOOL0
0V
Flash memory programming mode
R01UH0004EJ0501 Rev.5.01
840
Jun 20, 2011