Fitting Enhancement Summary

• Reduce macrocell and routing resource usage

  • Turn on MLS
  • Use DFFs instead of latches
  • Turn OFF Parallel Expanders for all or part of the project
  • Use asynchronous instead of synchronous clear and preset
  • Use IOE registers (MAX 9000 only)
  • Use Custom Fitter Settings
  • Try Automatic Register Packing (MAX 9000 only)
  • Consider selecting a larger device

• Increase routability

  • Turn on MLS
  • Use Dedicated Input/global buffer for high fan-out signals
  • Assgin output pins to Column IOEs (MAX 9000 only)
  • Change pin assignments
  • Use Fitter Settings Dialog Box
  • Manually insert LCELL primitives

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