https://docs.amd.com/r/en-US/ug572-ultrascale-clocking/MMCM-Clock-Divide-Dynamic-Change
MMCM Clock Divide Dynamic Change - MMCM Clock Divide Dynamic Change - UG572
The Clock Divide Dynamic Change (CDDC) feature supports the dynamic change of the clock output dividers (CLKOUT[6:0]_DIVIDE) in conjunction with the DRP...
clockdividedynamicchange