ID:176428 Ignored Input Delay from Pin to Internal Cells logic option assignment to input or bidirectional pin <name> because pin fans out to SERDES receiver <name>

CAUSE: You made a Input Delay from Pin to Internal Cells logic option assignment to the specified input or bidirectional pin, which fans out to the specified SERDES receiver. The target device cannot support the pin because pins feeding a SERDES receiver do not support the Input Delay from Pin to Internal Cells logic option.

ACTION: Delete the Input Delay from Pin to Internal Cells logic option assignment to the pin.