SH7146 Datasheet, PDF (878/1022 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperH™ RISC engine Family

Section 19 Flash Memory
Table 19.18 (3) Usable Area for Programming in User Boot Mode
Storable/Executable Area
Pro-
gram-
ming
proce-
dure
Item
Program data storage
area
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
On-
Chip
RAM
√
√
√
√
√
√
√
√
√
√
√
√
√
√
User
Boot
MAT
X*¹
√
√
X
√
√
√
√
X
√
√
X
X
X
External
Space
√
User
MAT
—
√
√
X
√
√
√
√
X
√
√
√
X
√
√
√
Selected MAT
User
Boot
MAT
Embedded
Program
Storage
Area
—
—
√
√
√
√
√
√
√
√
√
√
√
Rev. 3.00 May 17, 2007 Page 834 of 974
REJ09B0229-0300