SH7059 Datasheet, PDF (898/1042 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

25. ROM (SH7059)
Table 25.30 (2) Usable Area for Erasure in User Program 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
Writing H'5A to key register
Setting erasure parameters
Erasure
Judging erasure result
Erasing error processing
Key register clearing
Storable /Executable Area
On-Chip User
RAM
MAT
External Space
(Expanded
Mode with MD0
= 0)
O
O
O
Selected MAT
User
MAT
O
Embedded
Program
Storage MAT
O
O
O
O
X
X
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
X
X
O
O
O
O
O
O
O
O
O
O
X
O
O
O
O
O
O
O
X
O
O
O
X
X
O
O
X
O
O
O
X
O
O
O
X
O
O
Rev.3.00 Mar. 12, 2008 Page 808 of 948
REJ09B0177-0300