ID:15579 Output port <name> of PLL "<name>" feeds an output pin via global clocks -- jitter performance depends on switching rate of other design elements. Use PLL dedicated clock outputs to ensure jitter performance

CAUSE: The specified clock ports of the specified PLL feeds an output pin via global clocks. This may cause jitter performance to degrade due to noise from multiple switching design elements. Use PLL dedicated clock outputs to ensure jitter performance.

ACTION: To avoid receiving this message, modify the design so that the specified clock ports of the specified PLL do not feed an output pin or use the PLL dedicated clock outputs to feed an output pin for better jitter performance.