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Section 4 Boot Mode
R01UH0134EJ0400 Rev. 4.00 Page 113 of 2108
Sep 24, 2014
SH7262 Group, SH7264 Group
Figure 4.3 shows the configuration of the sector data that are read out as the loader program.
Data area
Loader block
identifying data
ECC
512 bytes
Data area (512 bytes)
This area holds part of the loader program.
Control-data area (16 bytes)
- Loader block identifying data (6 bytes)
This area is employed to identify the loader block. Store 0x5A as the identifying data.
- ECC code (10 bytes)
Store the four-symbol ECC code generated by the on-chip NAND flash memory controller here.
0 511 512 517
518
527
6 bytes
10 bytes
Figure 4.3 Sector Configuration for the Loader Program
Figure 4.4 shows the locations where the loader program is stored.
Store the loader program in sectors 0 to 15 of the loader block. Read out the loader program in
sectors.
Loader program
Sectors 0 to 15
NAND flash memory
Search in blocks
0 to 1023 (max.)
Highest
Lowest
Figure 4.4 Locations where the Loader Program is Stored