As default configuration, the UV of Vcca/Vaux/Vcore will only assert FS0B, and no action on RSTB. In default state, FS0B is not released.
So, after start-up and before FS0B released, if a VAUX_UV occured, what's the action of FLT_Err?
As description on User Manual, it will incremented each time RSTB/FS0B is asserted. But if FS0B has been asserted or havn't been released, does it incremented?
If you don't configure its affect,it will not increase.
If you configure,it will increase.
I am confused because I get a different answer from my FAE, and I can't find other information about this scene in UM or AppNote.
Could you show me the evidence please?
Please do experiment as we talked and verify the answer.