AM263P4: Resolver Ideal sampling point

Part Number: AM263P4

Tool/software:

Hey Experts,

in systemconfig you can configure the Ideal sample configuration in resolver wrapper.
When is the ideal sample calculated? At every sample, after every POR?
This ideal sample time is a value between 0-20, because i have an oversampling of 20?
Is there any API function to call the ideal sample time calculation?

Best regards
Marcel