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ls1021atwr CSU override bit

Question asked by Vincent Siles on May 11, 2016


in the LS1021ATWR ref manual, there are 8 bits that I don't find any explain on their purpose:

CSU_SA0[4-5] CSU_SA0[6-7] CSU_SA0[8-9] and CSU_SA0[10-11]


They are briefly described in section Secure Access register (p440)


I think the odd one is a lock for the even one, but I don't understand the purpose of the even one.

Is there some more information about these override bits ? What are they used for ?


Also the table CSU_SAn field descriptions just after seems to describe something else then the description from above (talking about security of masters). Is this a documentation issue or am I missing something ?