Article ID: 000074780 Content Type: Product Information & Documentation Last Reviewed: 02/13/2006

How do I implement the input shift register feature for the multiply-only mode in the Stratix™ device digital signal processing (DSP) block?

Environment

  • DSP
  • BUILT IN - ARTICLE INTRO SECOND COMPONENT
    Description When implementing the input shift register feature in the multiply-only mode, you can use the LPM_MULT MegaWizard® Plug-In. However, if you want to use other features, (for example the input shift register or the dynamic sign control feature of the DSP block,) you will need to use the ALTMULT_ADD megafunction, and specify the number of multipliers to be "1" in order to bypass the adder stage.

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    Stratix® FPGAs