Phase Shift

UltraScale Architecture Clocking Resources User Guide (UG572)

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Release Date
1.10.2 English

In many cases, there needs to be a phase shift between clocks. The MMCM has multiple options to implement phase shifting. Static phase shifting can be achieved by selecting one of the eight VCO output phases with additional fine phase shifting available in the CLKOUT output counters depending on the CLKOUT divide value. There is also an interpolated phase shifting capability in either fixed or dynamic mode. The MMCM phase shifting capabilities are very powerful, which can lead to complex scenarios. By using the Clocking Wizard, the allowable phase shift values are determined based on the MMCM configuration settings.