SH7058 Datasheet, PDF (980/1130 Pages) Renesas Technology Corp – Renesas SuperHTM RISC engine

Table 23.30 (4) Usable Area for Erasure in User Boot Mode
Eras-
ing
proce-
dure
Item
Selecting on-chip
program to be
downloaded
Writing H'A5 to key
register
Writing 1 to SCO in
FCCS (download)
Key register clearing
Judging download
result
Download error
processing
Setting initialization
parameters
Initialization
Judging initialization
result
Initialization error
processing
Interrupt processing
routine
Switching MATs by
FMATS
Writing H'5A to key
register
Setting erasure
parameters
Storable/Executable Area
On-
Chip
RAM
User
MAT
External
Space
(Expanded
Mode with
MD0 = 0)
O
O
O
O
O
O
O
X
X
O
O
O
O
O
O
O
O
O
O
O
O
O
X
X
O
O
O
O
O
O
O
X
O
O
X
X
O
X
O
O
X
O
Selected MAT
User
MAT
User
Boot
Mat
O
Embedded
Program
Storage
Area
O
O
O
O
O
O
O
O
O
O
O
O
O
Rev. 3.0, 09/04, page 939 of 1086