ID:17044 Illegal connection on I/O input buffer primitive <name>. Source I/O pin <name> drives out to destinations other than the specified I/O input buffer primitive. Modify your design so the specified source I/O pin drives only the specified I/O input buffer primitive.

CAUSE: The source I/O pin driving the I/O input buffer must only drive the I/O input buffer primitive and nothing else, however it also drives to other destinations.The specified I/O input buffer primitive is illegally configured.

ACTION: Modify your design so the specified source I/O pin drives only the specified I/O input buffer primitive.