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Method and system for creating and validating low level description of electronic design from higher level, behavior-oriented description, including interactive system for hierarchical display of control and dataflow information

  • US 5,555,201 A
  • Filed: 02/10/1994
  • Issued: 09/10/1996
  • Est. Priority Date: 04/06/1990
  • Status: Expired due to Term
First Claim
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1. An interactive system for hierarchical display of control and dataflow information, comprising:

  • an ECAD system including a computer processor, means for storing design-related information, and graphical display means;

    means for a problem-solving user to enter a high-level design description on said ECAD system and to store said design description on said means for storing;

    means, on the ECAD system, for analyzing the high-level design description to identify modules of the design and to organize the modules in a hierarchical manner such that;

    each module at other than a highest level of abstraction is associated with ancestor modules at higher levels of abstraction;

    each module at other than a lowest level of abstraction is associated with progeny modules at lower levels of abstraction;

    means, on the ECAD system, for synthesizing one or more detailed electronic designs from the high-level design description;

    graphical display means, connected to said computer processor, for displaying graphical objects representing selected modules of the design;

    means for graphically indicating control and data flow between said graphical objects on said graphical display means, said graphical control and data flow indications representing control and data flow between the modules represented by the graphical objects;

    means for selecting a level of hierarchical abstraction for any displayed graphical object; and

    means for indicating that a displayed graphical object represents a module which has progeny modules associated therewith at a lower level of abstraction.

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