ID:186046 Pin "<name>" driving clock input pin of fast PLL "<name>" does not have same I/O standard as other differential I/O pins driven by that PLL -- Fitter will automatically assign <name> I/O standard to pin

CAUSE: You assigned a different differential I/O standard to the specified pin driving the clock input pin of the specified fast PLL. The specified pin must have the same I/O standard as the other differential I/O pins driven by the PLL.

ACTION: Change the I/O standard assignments so that all the differential I/O pins driven by the specified fast PLL, as well as the clock input pin of the fast PLL, have the same I/O standard.