Assigning Cliques

You can define a group of logic functions as a single, named unit, called a clique. The MAX+PLUS^® II Compiler attempts to place all logic in the clique in the same logic array block (LAB) to ensure optimum speed. If the project does not use multi-LAB devices, or if it is not possible to fit all clique members into a single LAB, the clique assignment ensures that all members of a clique are placed in the same device. In FLEX^® 6000, FLEX 8000, FLEX 10K, and MAX^® 9000 devices the Compiler also attempts to place the logic in LABs in the same row. Cliques therefore allow you to partition a project so that only a minimum number of signals travel between LABs, and to ensure that no unnecessary LAB-to-LAB or device-to-device delays exist on critical timing paths.

To assign a clique, use the following syntax: CLIQUE=<clique name> For example: CLIQUE=fast1

Related Topics:

• Go to the following topics in MAX+PLUS II Help for related information:
  • Assigning a Clique
  • Guidelines for Achieving Maximum Speed Performance

Feedback

Did this information help you?

If no, please log onto mySupport to file a technical request or enhancement.

Altera does not warrant that this solution will work for the customer's intended purpose and disclaims all liability for use of or reliance on the solution.