Missing Input Clock or Feedback Clock

UltraScale Architecture Clocking Resources User Guide (UG572)

Document ID
UG572
Release Date
2023-02-01
Revision
1.10.2 English

When the input clock or feedback clock is lost, the CLKINSTOPPED or CLKFBSTOPPED status signal is asserted. The MMCM deasserts the LOCKED signal. After the clock returns, the CLKINSTOPPED signal is deasserted and a RESET must be applied.