Specify source for FIR or IIR filter coefficients


'Internal' (default)

Coefficients are obtained from the filter object and hard coded.


Generate a memory interface, which can be driven by an external microprocessor, for coefficients.

When you specify 'ProcessorInterface', the generated entity or module definition for the filter includes the following port definitions:

  • coeffs_in: Input port for coefficient data

  • write_address: Write address for coefficient memory

  • write_enable: Write enable signal for coefficient memory

  • write_done: Signal to indicate completion of coefficient write operation

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