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Design Flow

See the “Introduction” chapter for the design flow involved in using the Viewlogic interface. That chapter also describes the general steps for creating a design using the Viewlogic interface.

This tutorial describes an incremental design methodology. In incremental design, you process the design, make small changes, then process the design again. You use place and route information from the previous design processing cycle to constrain subsequent cycles of the same design. When you use this method, timing information in a design remains relatively stable through many processing cycles. Also, this method considerably reduces place and route time because much of the processing occurs in previous cycles.

You can target the tutorial design for an XC4000E or XC9500 device. You can use a Xilinx demonstration board to test the functionality of your design. Make sure your demonstration board and software support your selected device. To determine compatibility, refer to the release notes that came with your software package.

This tutorial uses the following conventions to refer to the various device families.

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