Datasheet

Section 24 Flash Memory
Rev. 2.00 Sep. 28, 2009 Page 794 of 994
REJ09B0452-0200
In consideration of these conditions, the areas in which the program data can be stored and
executed are determined by the combination of the processing contents, operating mode, and bank
structure of the memory MATs, as shown in tables 24.9 to 24.13.
Table 24.9 Executable Memory MAT
Operating Mode
Processing Contents User Program Mode User boot Mode*
Programming See table 24.10. See table 24.12
Erasing See table 24.11. See table 24.13
Note: * Programming/Erasing is possible to the User Mat.
Table 24.10 Usable Area for Programming in User Program Mode
Storable/Executable Area Selected MAT
Item On-Chip RAM User MAT User MAT
Embedded Program
Storage MAT
Storage area for program data O ×* ⎯ ⎯
Operation for selecting on-chip
program to be downloaded
O O O
Operation for writing H'A5 to FKEY O O O
Execution of writing 1 to SCO bit in
FCCS (download)
O × O
Operation for clearing FKEY O O O
Decision of download result O O O
Operation for download error O O O
Operation for setting initialization
parameter
O O O
Execution of initialization O × O
Decision of initialization result O O O
Operation for initialization error O O O
Operation for disabling interrupts O O O
Operation for writing H'5A to FKEY O O O
Operation for setting programming
parameter
O × O
Execution of programming O × O
Decision of programming result O × O
Operation for programming error O × O
Operation for clearing FKEY O × O
Note: * Transferring the program data to the on-chip RAM beforehand enables this area to be
used.