SH7211 Datasheet, PDF (947/1228 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperHTM RISC engine Family

Section 21 Flash Memory
Note that the command for reading from the user MAT/user boot MAT can only read data that
has been programmed after automatic erasure of the entire user MAT and user boot MAT.
Start in boot mode
(reset in boot mode)
2. ^{Wait for inquiry/selection}
command
(Bit rate matching)
Reception of H'00, …, H'00
Reception ^{of H'55}
Reception of
inquiry/selection command
Response to
inquiry/selection command
Bit rate matching
1.
Execute processing
in response to inquiry/
selection command
Erasure of entire
3. user MAT and
user boot MAT
Wait for
4. ^{programming/erasure}
command
Reception of
read/check command
Response to command
Execute processing
in response to read/
check command
Erasure complete
Reception of erasure
select command
Erasure block specification
Programming
complete
Reception of programming
select command
Wait for erasure
block number
Wait for
programming data
Transmission of programming
data by the host
Figure 21.8 State Transitions in Boot Mode
Rev. 2.00 May. 08, 2008 Page 923 of 1200
REJ09B0344-0200