ID:15866 Output port <name> of I/O output-enable FF primitive "<name>" must drive an I/O OBUF primitive, a delay chain primitive, or a pseudo-differential output primitive.

CAUSE: The specified I/O FF atom is not connected properly.

ACTION: Ensure that the I/O FF atom is driving the OE port of an OBUF primitive, the datain port of a delay chain primitive, or the OEIN port of a PSEUDO_DIFF_OUT primitive.