Layout name 布局名称

For example layou 例如布局:
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
扇区

1094
Data sector size
数据扇区大小

27
SA size (SM controllers have SA at end of page. One SA for page. And for example 8 sectors for 9216 page)
SA大小（SM控制器在页面末尾有SA，页面为一个SA，例如9216页的8个扇区）

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?
如何在两个xors之间做出选择?
1. Use auto find mix. If found nothing – xor is not ok
1.使用自动查找混合。如果没有发现- XOR是不好的
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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