数字电路英文版 第七单元

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1、CHAPTER7INTRODUCTIONTOPROGRAMMABLELOGICDEVICEABEL(件描述语言的一种)Architecture(结构体)Array(阵列)Buffer(缓冲器)Cell(单元)Compiler(编辑器)Documentationfile(使用说明文件)Fuse(熔丝)E2CMOS(电可擦除的CMOS)GAL(通用阵列逻辑器件)Inputfile(输入文件)Input/Output(I/O)(输入/输出)JEDECfile(标准数据格式文件)OLMC(输出逻辑宏单元)PAL(可编程阵列逻辑)PLA(可编程逻辑阵列)PLD(可编程逻辑器件)P

2、rogrammer(编程器)PROM(可编程只读存储器)Software(软件)Synthesis(综合)Tristateoutputbuffer(三态输出缓冲器)ZIFsocked(不用力插座)KEYTERMSABELAdvancedBolleanExpressionLanguage.AsoftwarecompilerlanguageforPLDprogramming;atypeofhardwaredescriptionlanguage(HDL).ArchitectureTheinternalfunctionalarrangementoftheelementsthat

3、giveadeviceitsparticularoperatingcharacteristics.ArrayInaPLD,amatrixformedbyrowsofproduct-termlinesandcolumnsofinputlineswithaprogrammablecellateachjunction.BufferAcircuitthatpreventsloadingofaninputoroutput.CellAfusedcrosspointofarowandcolumnninaPLD.ComplierSoftwarethattranslatesfromhig

4、h-levellanguagethatuseswordsorsymbols,suchasHDL,intolow-levelmachinelanguage(1sand0s).DocumentationfileTheinformationfromacomputerthatdocumentsthefinaldesignaftertheinputfilehasbeenprocessed.E2CMOSElectricallyearsableCMOS(EECMOS).ThecircuittechnologyusedforthereprogrammablecellsinGAL.Fus

5、eTheprogrammableelementincertaintypesofPLDs;alsocalledafusiblelink.GALGenericarraylogic.APLDwithareprogrammableANDarray,afixedORarray,andprogrammableoutputlogicmacrocells.InputfileTheinformationenteredinacomputerthatdescribeslogicdesignusingaPLDprogramminglanguagesuchasHDL.Input/Output(I

6、/O)Aterminalofadevicethatcanbeusedaseitheraninputorasanoutput.OLMCOutputlogicmarcocell.TheprogrammableoutputlogicinaGAL.PALProgrammablearraylogic.APLDwithaprogrammableANDarrayandafixedORarray.PLAProgrammablelogicarray.APLDwithaprogrammableANDandORarray.PLDProgrammablelogicdevice.Programm

7、erAninstrumentthatprogramsPLDusingaJEDECfiledownloadedfromacomputerrunningHDLsoftware.SoftwareComputerprograms;programsthatinstructacomputerwhattodoinordertocarryoutagivensetoftasks.SynthesisThesoftwareprocessofconvertingacircuitdescriptiontoastandardJEDECfileforPLDprogra