| Understanding Assignment Priority | |
Carry chains, cascade chains, and cliques cannot cross LogicLock region boundaries. If you assign some nodes in a carry chain, cascade chain, or clique to a parent LogicLock region and other nodes in the same chain or clique to descendant LogicLock regions along a single branch of the LogicLock region hierarchy, the Fitter places all nodes in the chain or clique inside the lowest-level LogicLock region to which nodes in the chain or clique are assigned. In all other cases when nodes in the same chain or clique are assigned to different LogicLock regions, the Fitter produces an error message.