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For example layout:
SM3257 1094_27 Xor 101d_256 v2
SM3257
Controller name. Not always = phisical controller name. But we can tell that layouts with same name use same markers (same SA decoding)
1094_27
Sector
1094
Data sector size
27
SA size (SM controllers have SA at end of page. One SA for page. And for example 8 sectors for 9216 page)
Xor 101d_256 v2
All after "Xor" is about xor
101d
Xor type. I give name by first two bytes of xor
256
Number of pages in xor pattern. After 256 pages xor repeats
v2
Xor use same algo as 101d xor. And starts from 101d. But have different sequence of pages
How to choose between two xors?
1. Use auto find mix. If found nothing - xor is not ok
2. If SA is not xored. Like in most SM cases. You can build translator. And find MBR block. Then look all xors at this block. One of them can show you good MBR
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