Sorry to trouble, can you help to check whether we can directly read out the TDC and NCO value of AD9543, i can only find auxiliary TDCs' read register.
Only the auxiliary TDC have user readouts available to them. The timestamps from the TDCs used in the standard DPLL operation are not user accessible.
The DPLL NCO values can be set using the free run tuning word bits. However, when the DPLL is locked, the user can access the DPLL tuning word history bits. This bitfield represents the tuning word that is used in the event that holdover is triggered.
Retrieving data ...