ID:23463 In this package, RNRC U20's refclk2 pin is being shorted to U22's refclk2 pin. If you plan to use U20's refclk2 later, make a short/common connection to U22 refclk2

CAUSE: U20 refclk2 is being shorted to U22 refclk2.

ACTION: If you plan to use U22 refclk2 and U20 refclk2, make sure to short the refclk2 port in the top wrapper module or in platform_designer.qsys.