Using the Oscillator Block

To use the oscillator block in your design:
  1. Add the oscillator block.
  2. Select the resource (OSC_0).
  3. Choose the clock frequency (10, 20, 40, or 80).
  4. Specify the instance name and clock pin.
Note: You can disable the internal oscillator in Topaz FPGAs. The internal oscillator is disabled if it is not instantiated in the Efinity® Interface Designer.