SH7125 Datasheet, PDF (675/782 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer

Section 17 Flash Memory
Table 17.17 (2) Usable Area for Erasure in User Program Mode
Storable/Executable Area
Selected MAT
Item
On-Chip
RAM
User
MAT
User
MAT
Embedded
Program
Storage
MAT
Selecting on-chip program to be √
√
√
downloaded
Writing H'A5 to key register
√
√
√
Writing 1 to SCO in FCCS
√
X
√
(download)
Key register clearing
√
√
√
Deciding download result
√
√
√
Download error processing
√
√
√
Setting initialization parameters √
√
√
Initialization
√
X
√
Erasing Deciding initialization result
√
√
√
proce- _{Initialization error processing}
√
√
√
dure
Interrupt processing routine
√
X
√
Writing H'5A to key register
√
√
√
Setting erasure parameters
√
X
√
Erasure
√
X
√
Deciding erasure result
√
X
√
Erasing error processing
√
X
√
Key register clearing
√
X
√
Rev. 3.00 Sep. 27, 2007 Page 655 of 758
REJ09B0243-0300