Datasheet

Section 22 Flash Memory
Rev. 3.00 Sep. 28, 2009 Page 722 of 910
REJ09B0350-0300
Table 22.12 Usable Area for Programming in User Boot Mode
Storable/Executable Area Selected MAT
Item On-chip RAM
User Boot
MAT
User MAT
User Boot
MAT
Embedded
Program
Storage MAT
Storage area for program
data
O
×*
1
⎯ ⎯ ⎯
Selecting on-chip program
to be downloaded
O
O O
Writing H'A5 to FKEY
O
O O
Writing 1 to SCO in FCCS
(download)
O
× O
FKEY clearing O O O
Determination of download
result
O O O
Download error processing O O O
Setting initialization
parameter
O O O
Initialization O × O
Determination of
initialization result
O O O
Initialization error
processing
O O O
Disabling interrupts O O O
Switching MATs by FMATS O × O
Writing H'5A to FKEY O × O
Setting programming
parameter
O × O
Programming O × O
Determination of
programming result
O × O
Programming error
processing
O ×*
2
O
FKEY clearing O × O
Switching MATs by FMATS O × O
Notes: 1. Transferring the data to the on-chip RAM in advance enables this area to be used.
2. Switching FMATS by a program in the on-chip RAM enables this area to be used.