嵌入式系统词汇表英文版

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1、嵌入式系统词汇表AASICApplication-SpecificIntegratedCircuit.Apieceofcustom-designedhardwareinachip.addressbusAsetofelectricallinesconnectedtotheprocessorandalloftheperipheralswithwhichitcommunicates.Theaddressbusisusedbytheprocessortoselectaspecificmemorylocationorregisterwith

2、inaparticularperipheral.Iftheaddressbuscontainsnelectricallines,theprocessorcanuniquelyaddressupto2^nsuchlocations.applicationsoftwareDescribessoftwaremodulesspecifictoaparticularembeddedproject.Theapplicationsoftwareisunlikelytobereusableacrossembeddedplatforms,simpl

3、ybecauseeachembeddedsystemhasadifferentapplication.assemblerAsoftwaredevelopmenttoolthattranslateshuman-readableassemblylanguageprogramsintomachine-languageinstructionsthattheprocessorcanunderstandandexecute.assemblylanguageAhuman-readableformofaprocessor'sinstruction

4、set.Mostprocessor-specificfunctionsmustbewritteninassemblylanguage.BBSPSeeboardsupportpackage.binarysemaphoreAtypeofsemaphorewithjusttwostates.Alsocalledamutex.boardsupportpackagePartofasoftwarepackagethatisprocessororplatform-dependent.Typically,samplesourcecodeforth

5、eboardsupportpackageisprovidedbythepackagedeveloper.Thesamplecodemustbemodifiedasnecessary,compiled,andlinkedwiththeremainderofthesoftwarepackage.bond-outprocessorAspecialversionofaprocessorthathassomeoftheinternalsignalsbroughtouttoexternalpins.Abond-outprocessorismo

6、stoftenfoundwithinanemulatorandisneverintendedtobeusedinaproductionsystem.breakpointAlocationinaprogramatwhichexecutionistobestoppedandcontroloftheprocessorswitchedtothedebugger.Mechanismsforcreatingandremovingbreakpointsareprovidedbymostdebuggingtools.CCISCComplexIns

7、tructionSetComputer.Describesthearchitectureofaprocessorfamily.CISCprocessorsgenerallyfeaturevariable-lengthinstructions,multipleaddressingformats,andcontainonlyasmallnumberofgeneral-purposeregisters.Intel's80x86familyisthequintessentialexampleofCISC.ContrastwithRISC.

8、CPUCentralProcessingUnit.Thepartofaprocessorthatexecutesinstructions.compilerAsoftwaredevelopmenttoolthattranslateshigh-leve