Datasheet

CHAPTER 24 FLASH MEMORY
User’s Manual U18698EJ1V0UD
517
24.6 Programming Method
24.6.1 Controlling flash memory
The following figure illustrates the procedure to manipulate the flash memory.
Figure 24-9. Flash Memory Manipulation Procedure
Start
Selecting communication mode
Manipulate flash memory
End?
Yes
FLMD0 pulse supply
No
End
Flash memory programming
mode is set
24.6.2 Flash memory programming mode
To rewrite the contents of the flash memory by using the dedicated flash memory programmer, set the 78K0/LC3 in
the flash memory programming mode. To set the mode, set the FLMD0 pin to V
DD and clear the reset signal.
Change the mode by using a jumper when writing the flash memory on-board.
Figure 24-10. Flash Memory Programming Mode
VDD
RESET
5.5 V
0 V
V
DD
0 V
Flash memory programming mode
FLMD0
FLMD0 pulse
V
DD
0 V
Table 24-5. Relationship Between FLMD0 Pin and Operation Mode After Reset Release
FLMD0 Operation Mode
0 Normal operation mode
VDD Flash memory programming mode