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Section 24 Flash Memory
Table 24.12 Usable Area for Programming in User Boot Mode
Item
Storage area for program data O
Selecting on-chip program to
be downloaded
Writing H'A5 to FKEY
Writing 1 to SCO in FCCS
(download)
FKEY clearing
Determination of downloaded
result
Download error processing
Setting initialization parameter O
Initialization
Determination of initialization
result
Initialization error processing
NMI handling routine
Disabling interrupts
Switching MATs by FMATS
Writing H'5A to FKEY
Setting programming
parameter
Programming
Determination of programming
result
Programming error processing O
FKEY clearing
Switching MATs by FMATS
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.
Rev. 1.00 May 09, 2008 Page 764 of 954
REJ09B0462-0100
Storable/Executable Area
On-Chip
User Boot
RAM
MAT
×*
1
O
O
O
O
×
O
O
O
O
O
O
O
O
×
O
O
O
O
O
×
O
O
O
×
O
×
O
×
O
×
O
×
O
×*
2
×
O
×
O
Selected MAT
User Boot
User MAT
MAT
—
—
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
Embedded
Program
Storage MAT
—
O
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