Digital_ASIC_Design_Tutorial_on_Design_Flow

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1、DigitalASICDesignATutorialontheDesignFlowDigitalASICGroupOctober20,2005ElectroScience

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3、ContentsContents31IntroductiontoVHDL111.1Background..............................111.2Event-drivensimulation.......................121.3Designunits..............................121.3.1Ent

4、ity.............................131.3.2Architecture.........................131.3.3Conguration.........................131.3.4Component..........................141.3.5Package............................141.4Datatypesandmodelling......................161.4.1Typedeclaration.

5、......................161.4.2Signals.............................161.4.3Generics............................171.4.4Constants...........................171.4.5Variables...........................181.4.6Commonoperations.....................181.5Processstatement................

6、..........191.5.1Sequentialvs.combinatoriallogic.............191.6Instantiationandportmaps.....................211.7Generatestatements.........................211.8Simulation...............................231.8.1Testbenches..........................231.8.2Modelsim...........

7、................241.8.3Non-synthesizablecode...................251.9Designexample............................252DesignMethodology312.1StructuredVHDLprogramming...................322.1.1Sourcecodedisposition...................322.1.2Records............................332.1.3C

8、lockandresetsignal....................332.1.4Hierarchy...........................342.1.5Localvariables........................352.1.6Subprograms.........................352.1.7Summary...........................362.2Example................................37

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11、echnologyContents2.3Technologyindependence......................372.3.1ASICMemories........................392.3.2ASICPads..........................392.3.3FPGAmodules........................402.3.4FPGAPads..........................412.3.5ALUunit...........................423

12、Arithmetic433.1Introduction..............................433.2VHDLPackages.