ID:11820 Illegal parameter value: SYSTOLIC_DELAY1 and SYSTOLIC_DELAY3 are used without the chainin port.

CAUSE: The parameter value is illegal. This error occurs when you instantiate a megafunction directly in a text file.

ACTION: Use the MegaWizard Plug-In Manager to regenerate the ALTERA_MULT_ADD megafunction with a legal parameter value.