ID:15556 Input frequency of PLL "<name>" must be in the frequency range of <number> to <number> for locking

CAUSE: You specified the input frequency for the specified PLL. However, the input frequency is outside the specified frequency range that is required to lock the PLL. This warning usually occurs when you instantiate a megafunction directly in a text file rather than using the MegaWizard Plug-In Manager .

ACTION: To avoid receiving this message in the future, Intel recommends using the MegaWizard Plug-In Manager to change the input frequency for the specified PLL.