Memory Banking in Microprocessor - GeeksforGeeks

The memory chip is equally divided into two parts(banks). One of the banks contain even addresses called Even bank and the other contain odd ... 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ChangeLanguage DataStructuresAlgorithmsInterviewPreparationTopic-wisePracticeC++JavaPythonCompetitiveProgrammingMachineLearningWebDevelopmentPuzzlesProjectIdeasSchoolLearning RelatedArticles ▲RelatedArticlesProgramforDecimaltoBinaryConversionCacheMemoryinComputerOrganizationAddressingModesProgramforBinaryToDecimalConversionRandomAccessMemory(RAM)andReadOnlyMemory(ROM)DifferencebetweenRAMandROMDifferencebetweenHardwareandSoftwareIEEEStandard754FloatingPointNumbersComputerOrganization|InstructionFormats(Zero,One,TwoandThreeAddressInstruction)Addressingmodesin8085microprocessorLogicalandPhysicalAddressinOperatingSystemGenerationsofComputerComputerOrganizationandArchitecture|Pipelining|Set1(Execution,StagesandThroughput)I/OInterface(InterruptandDMAMode)MemoryHierarchyDesignanditsCharacteristicsFlagregisterin8085microprocessorComputerOrganization|RISCandCISCProgrammableperipheralinterface8255Flagregisterof8086microprocessorComputerOrganization|Booth'sAlgorithm8085programtoaddtwo8bitnumbersAdvantagesanddisadvantagesofComputerAddressingmodesin8086microprocessorInterruptsMemorySegmentationin8086MicroprocessorComputerOrganization|BasicComputerInstructionsComputerOrganization|VonNeumannarchitectureDifferentTypesofRAM(RandomAccessMemory)WriteThroughandWriteBackinCacheComputerOrganization|DifferentInstructionCyclesRelatedArticlesProgramforDecimaltoBinaryConversionCacheMemoryinComputerOrganizationAddressingModesProgramforBinaryToDecimalConversionRandomAccessMemory(RAM)andReadOnlyMemory(ROM)DifferencebetweenRAMandROMDifferencebetweenHardwareandSoftwareIEEEStandard754FloatingPointNumbersComputerOrganization|InstructionFormats(Zero,One,TwoandThreeAddressInstruction)Addressingmodesin8085microprocessorLogicalandPhysicalAddressinOperatingSystemGenerationsofComputerComputerOrganizationandArchitecture|Pipelining|Set1(Execution,StagesandThroughput)I/OInterface(InterruptandDMAMode)MemoryHierarchyDesignanditsCharacteristicsFlagregisterin8085microprocessorComputerOrganization|RISCandCISCProgrammableperipheralinterface8255Flagregisterof8086microprocessorComputerOrganization|Booth'sAlgorithm8085programtoaddtwo8bitnumbersAdvantagesanddisadvantagesofComputerAddressingmodesin8086microprocessorInterruptsMemorySegmentationin8086MicroprocessorComputerOrganization|BasicComputerInstructionsComputerOrganization|VonNeumannarchitectureDifferentTypesofRAM(RandomAccessMemory)WriteThroughandWriteBackinCacheComputerOrganization|DifferentInstructionCyclesSaveArticle ImproveArticle SaveArticle LikeArticle MemoryBankinginMicroprocessorDifficultyLevel: BasicLastUpdated: 16Jan,2020The8086processorprovidesa16bitdatabus.SoItiscapableoftransferring16bitsinonecyclebuteachmemorylocationisonlyofabyte(8bits),thereforeweneedtwocyclestoaccess16bits(8biteach)fromtwodifferentmemorylocations.ThesolutiontothisproblemisMemoryBanking.ThroughMemorybankingourgoalistoaccesstwoconsecutivememorylocationsinonecycle(transfer16bits).Thememorychipisequallydividedintotwoparts(banks).OneofthebankscontainevenaddressescalledEvenbankandtheothercontainoddaddressescalledOddbank.EvenbankalwaysgiveslowerbyteSoEvenbankisalsocalledLowerbank(LB)andOddbankisalsocalledaHigherbank(HB).Attentionreader!Don’tstoplearningnow.GetholdofalltheimportantCSTheoryconceptsforSDEinterviewswiththeCSTheoryCourseatastudent-friendlypriceandbecomeindustryready. Thisbankingschemeallowstoaccesstwoalignedmemorylocationsfrombothbankssimultaneouslyandprocess16bitdatatransfer.Memorybankingdoesn’tmakeitcompulsorytotransfer16bits,itfacilitatesthe16bitdatatransfer.Thechoicebetween8bitand16bittransferdependsontheinstructionsgivenbytheprogrammer.Example:TheleastSignificantbitofaddress(A0isnotusedforbyteselection)itisreservedforbankselection.ThereforeA0=0willselectEvenbank.TheBHEsignalisusedforselectionofoddbank.theprocessorwillusedcombinationofthistwosignalsdecidetypeofdatatransfer.BHEA0typesofTransfer0016bitdatatransferfrombothHBandLB018bitdatatransferfromHB108bitdatatransferfromLB11None(Idle)Inthiscasethefirstmachinecyclegeneratesoddaddress(A0=1)transferlowerorder8databitsonhigherorderdatabus.Insecondmachinecyclehigherorderdatabuswillbetransferonlowerorderdatabus.MyPersonalNotes arrow_drop_upSave LikePreviousLogicGatesinPythonNext Liang-BarskyAlgorithmRecommendedArticlesPage:11,May1801,Dec2010,Sep1812,Dec1813,May1921,May1927,May1918,Apr1817,May1813,Apr1816,Apr1816,Apr1817,Apr1819,Apr1819,Apr1820,Apr1823,Apr1827,Apr1827,Apr1830,Apr1803,May1803,May1808,May1811,May18ArticleContributedBy:sonalilotankar@sonalilotankarVotefordifficultyCurrentdifficulty: BasicEasy Normal Medium Hard ExpertImprovedBy:poorna883ArticleTags:ComputerOrganization&ArchitectureReportIssueWritingcodeincomment? 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