Critical Issue
Description
By default, phase shifts in the Altera PLL v12.0 MegaWizard Plug-In Manager are specified in degree units. However, if you specify an output phase shift in degree units, the phase shift is not simulated correctly.
Resolution
To simulate the phase shift correctly, either specify the output phase shift in picoseconds or, in your .vo or .vho file include ps in your instantiation. For example, in the .vo or .vho file change
xxxxx.phase_shift0 = 5000
to
xxxxx.phase_shift0 = “5000 ps”