数字设计第一章

《数字逻辑与设计》课程双语课件

DigitalDesign—Principles&Practices

数字设计—原理与实践

(FourthEdition)JohnF.Wakerly

苏州大学计算机科学与技术学院陆晓峰(luxiaofeng@)数字设计1.本课程的性质：是高等院校计算机、电子工程、通信、自动控制等专业的一门重要技术基础课程。也是计算机科学与技术（类）本专科的必修课。2.本课程的主要目的：掌握数字逻辑电路分析与设计的基本方法，为数字计算机和其他数字系统的硬件分析与设计奠定坚实的基础。3.参考书

[1]欧阳星明主编《数字逻辑》华中科技大学出版社，2000[2]鲍家元等编著《数字逻辑》第一版.北京:高等教育出版社,1997

[3]白中英主编《数字逻辑与数字系统》第二版.科学出版社,1999[4]邓元庆主编《数字电路与逻辑设计》北京:电子工业出版社,2001[5]陈光梦主编《可编程逻辑器件的原理与应用》.上海:复旦大学出版社,1998[6]王伟编著《VerilogHDL程序设计与应用》人民邮电出版社，2005CONTENTS1.INTRODUCTION(引论)2.NUMBERSYSTEMSANDCODE(数制和编码)3.DIGITALCIRCUITS(数字电路)4.COMBINATIONALLOGICDESIGNPRINCIPLES(组合逻辑设计原理)5.HARDWAREDESCRIPTIONLANGUAGES(硬件描述语言)6.COMBINATIONALLOGICDESIGNPRACTICES(组合逻辑设计实践)7.SEQUENTIALLOGICDESIGNPRINCIPLES(时序逻辑设计原理)8.SEQUENTIALLOGICDESIGNPRACTICES(时序逻辑设计实践)9.MEMORY,CPLDS,ANDFPGAS(存储器、CPLD和FPGA)Chapter1Introduction1.1AboutDigitalDesignDigitaldesignisengineering,means“problemsolving.”

Conceive--Thecreativepartofdesign(构思)Turningthecrank(实现)Debugging(调试能力)Businessrequirementsandpractices(商业要求和实践经验)Risk-taking(风险意识)Communication(沟通能力)1.2AnalogversusDigitalAnalogsignal:Time-varyingsignalthatcantakeonanyvalueacrossacontinuousrangeofvoltage,current,orothermetric.Digitalsignal:Time-varyingsignalthattakeon,atanytime,onlyoneoftwodiscretevalues,0and1.1.3DigitalDevices1.3DigitalDevices(数字器件)Themostbasicdigitaldevicesarecalledgates(门).ThethreemostimportantkindsofgatesareANDgate,ORgate,NOTgate(inverter).Anydigitalfunctioncanberealizedusingjustthesethreekindsofgates.1.3DigitalDevices(2)Combinationalcircuit(组合电路):AgateiscallCombinationalcircuitbecauseitsoutputdependsonlyonthecurrentinputcombination.Flip-flop(触发器):Aflip-flopisadevicethatstoreseithera0or1.Thestateofaflip-flopisthevaluethatitcurrentlystores.Thestoredvaluecanbechangedonlyatcertaintimesdeterminedbya“clock”input,andthenewvaluemayfurtherdependontheflip-flop’scurrentstateandits“control”inputs.Aflip-flopcanbebuiltfromacollectionofgateshookedupinacleverway.1.3DigitalDevices(3)Sequentialcircuit(时序电路):Adigitalcircuitthatcontainsflip-flopsiscalledasequentialcircuit,becauseitsoutputatanytimedependsnotonlyonitscurrentinputbutalsoonthepastsequenceofinputsthathavebeenappliedtoit.Inotherwords,asequentialcircuithasmemoryofpastevents.1.4&1.51.4ElectronicAspectsofDigitalDesign(数字设计的电子技术)1.5SoftwareAspectsofDigitalDesign(数字设计的软件技术)CAD:computer-aideddesign(计算机辅助设计).HDL:hardwaredescriptionlanguages(硬件描述语言).ABEL,VHDL,VerilogHDL1.6IntegratedCircuits1.6IntegratedCircuits(IC)集成电路

Acollectionofoneormoregatesfabricatedonasinglesiliconchip(硅片)iscalledanintegratedcircuits(IC).Dualin-linepinpackage(DIP)QuadFlatPackage(QFP)1.6IntegratedCircuits(2)SSIIC:small-scaleintegrationIC.1to20gates.MSIIC:medium-scaleintegrationIC.20to200gates.LSIIC:large-scaleintegrationIC.200to200,000gates.VLSIIC:verylarge-scaleintegrationIC.over1,000,000transistors.1.7ProgrammableLogicDevices1.7ProgrammableLogicDevices(可编程逻辑器件)PLD:programmablelogicdevicePLA:programmablelogicarrayPAL:programmablearraylogic

CPLD:complexPLDFPGA:field-programmablegatearray

1.8Application-SpecificICsApplication-SpecificICs(ASIC)专用集成电路EthernetControllerIC1.9Printed-CircuitBoardsPrinted-CircuitBo