Datasheet

Section 19 ROM
Rev.6.00 Sep. 27, 2007 Page 764 of 1268
REJ09B0220-0600
Figure 19.13 shows the procedure for executing the program/erase control program when
transferred to on-chip RAM.
Branch to flash memory application
program
Branch to program/erase control
program in RAM area
Execute program/erase control
program (flash memory rewriting)
Transfer program/erase control
program to RAM
MD2, MD1, MD0 = 110, 111
Reset-start
Write the transfer program
(and the program/erase control
program if necessary) beforehand
Note: The watchdog timer should be activated to prevent overprogramming or overerasing
due to program runaway, etc.
Figure 19.13 User Program Mode Execution Procedure