数字电子技术(课件)lec.ppt

2020 3 26 Chapter10MemoryandStorage 1 Lecture24Outline 10 5FlashMemories10 6MemoryExpansion10 7SpecialTypesofMemories MemoryApplication Lecture24 MemoryExpansion Application 2020 3 26 Chapter10MemoryandStorage 2 KeyKnowledgeinLecture24 Operationprincipleofflashmemory Memoryword lengthexpansionandwordcapacityexpansionconnection Determinetheaddressrangeforeachmemorychip FIFOmemoriesandtheirapplication LIFOmemoriesandtheiruseasstack DifficultTopics Memoryexpansionmethod Determinetheaddressrangeofmemorychip Lecture24 MemoryExpansion Application 2020 3 26 Chapter10MemoryandStorage 3 TheStorageCellinaFlashMemory Flashmemoriesarehigh densityread writenonvolatilememories ThestoragecellconsistsofasinglefloatinggateMOStransistor Lecture24 MemoryExpansion Application 2020 3 26 Chapter10MemoryandStorage 4 SimplifiedIllustrationofStoringa0ora1 Lecture24 MemoryExpansion Application 2020 3 26 Chapter10MemoryandStorage 5 TheReadOperationofaFlashCellinAnArray Lecture24 MemoryExpansion Application 2020 3 26 Chapter10MemoryandStorage 6 SimplifiedIllustrationofRemovingChargefromaCell Lecture24 MemoryExpansion Application 2020 3 26 Chapter10MemoryandStorage 7 BasicFlashMemoryArray Lecture24 MemoryExpansion Application 2020 3 26 Chapter10MemoryandStorage 8 TwoTypesofMemoryExpansion Lecture24 MemoryExpansion Application Word lengthexpansion expandthenumberofbitsineachaddress 2020 3 26 Chapter10MemoryandStorage 9 MemoryExpansionExample1 Lecture24 MemoryExpansion Application Expandthe64kx4ROMtoforma64kx8ROM 2020 3 26 Chapter10MemoryandStorage 10 MemoryExpansionExample1Solution Lecture24 MemoryExpansion Application 2020 3 26 Chapter10MemoryandStorage 11 MemoryExpansionExample2andtheSolution Lecture24 MemoryExpansion Application 2020 3 26 Chapter10MemoryandStorage 12 RAMWord LengthExpansionIllustration Lecture24 MemoryExpansion Application 2020 3 26 Chapter10MemoryandStorage 13 RAMWord LengthExpansionExample Lecture24 MemoryExpansion Application Use1Mx4SRAMtocreatea1Mx8SRAM 2020 3 26 Chapter10MemoryandStorage 14 TwoTypesofMemoryExpansion Lecture24 MemoryExpansion Application 2 Word capacityexpansion expandthenumberofdifferentaddresses 2020 3 26 Chapter10MemoryandStorage 15 Word CapacityExpansionExample1 Use512kx4RAMstoimplementa1Mx4memory Lecture24 MemoryExpansion Application Howtoexpandmemorywithmorethantwochips 2020 3 26 Chapter10MemoryandStorage 16 Word CapacityExpansionExample2 Lecture24 MemoryExpansion Application Use8kx8RAMstoimplementa32kx8memory 2020 3 26 Chapter10MemoryandStorage 17 DeterminetheAddressRangeofEachMemoryChip Lecture24 MemoryExpansion Application 2020 3 26 Chapter10MemoryandStorage 18 MemoryModules Lecture24 MemoryExpansion Application 2020 3 26 Chapter10MemoryandStorage 19 InsertingaSIMM DIMMintoaSocket Lecture24 MemoryExpansion Application SIMMhas32 bitdatapath DIMMhas64 bitdatapath 2020 3 26 Chapter10MemoryandStorage 20 SpecialTypesofMemories Lecture24 MemoryExpansion Application Firstin Firstout FIFO Memories 2020 3 26 Chapter10MemoryandStorage 21 BlockDiagramofaTypicalFIFOSerialMemory Lecture24 MemoryExpansion Application 2020 3 26 Chapter10MemoryandStorage 22 FIFORegisterinData RateBufferingApplications Lecture24 MemoryExpansion Application 2020 3 26 Chapter10MemoryandStorage 23 LastIn FirstOut LIFO Memories Lecture24 MemoryExpansion Application Registerstack 堆栈 2020 3 26 Chapter10MemoryandStorage 24 SimplifiedIllustrationofPushingDataontotheStack Lecture24 MemoryExpansion Application 2020 3 26 Chapter10MemoryandStorage 25 SimplifiedIllustrationofPullingDatafromtheStack Lecture24 MemoryExpansion Application 2020 3 26 Chapter10MemoryandStorage 26 RAMstack Lecture24 MemoryExpansion Application Representationofa64kBmemorywiththe16 BitAddressesExpressedinHexadecimal 2020 3 26 Chapter10MemoryandStorage 27 IllustrationofPUSHOperationforaRAMStack Lecture24 MemoryExpansion Application Foraregisterstack thedatamovesupordownfromonelocationtothenext InaRAMstack thedataitselfdoesnotmovebutthetop of stackmovesundercontrolofaregistercalledthestackpointer 堆栈指针 2020 3 26 Chapter10MemoryandStorage 28 IllustrationofPOPOperationfortheRAMStack Lecture24 MemoryExpansion Application Thelastdatawordstoredinthestackisreadfirst Thenthestackpointerisincrementedbytwo KeepinmindthatRAMsarenondestructive sothedatawordstillremainsinthememoryafterapopoperation 2020 3 26 Chapter10MemoryandStorage 29 CCD charge coupleddevice Memories Lecture24 MemoryExpansion Application ACCDchannel TheCCDmemorystoresdataaschargesoncapacitors UnliketheDRAM however thestoragecelldoesnotincludeatransistor TheCCDmemoryconsistsoflongrowsofsemiconductorcapacitors calledchannels Dataareenteredintoachannelseriallybydepositingasmallchargefor0andlargechargefor1onthecapacitors 2020 3 26 Chapter10MemoryandStorage 30 BlockDiagramoftheCompleteSecuritySystem Lecture24 MemoryExpansion Application 2020 3 26 Chapter10MemoryandStorage 31 BlockDiagramoftheMemoryLogic Lecture24 MemoryExpansion Application 2020 3 26 Chapter10MemoryandStorage 32 MemoryCellLogic Lecture24 MemoryExpansion Application 2020 3 26 Chapter10MemoryandStorage 33 TheMemoryAddressDecoder Lecture24 MemoryExpansion Application 2020 3 26 Chapter10MemoryandStorage 34 MemoryArrayandAddressDecoder Lecture24 MemoryExpansion Application 2020 3 26 Chapter10MemoryandStorage 35 IllustrationofEnteringaSecurityCode 4739 Lecture24 MemoryExpansion Application 2020 3 26 Chapter10MemoryandStorage 36 TheCompleteMemoryLogic Lecture24 MemoryExpansion Application 2020 3 26 Chapter10MemoryandStorage 37 TheSecurityCodeLogic FromChapter9 Lecture24 MemoryExpansion Application 2020 3 26 Chapter10MemoryandStorage 38 TheCompleteSecuritySystem Lecture24 MemoryExpansion Application 2020 3 26 Chapter10MemoryandStorage 39 SummaryofLecture24 Flashmemorycelluseschargeornochargetostoredatabit0or1 Word lengthexpansionexpandthenumberofbitsineachaddress Word capacityexpansionexpandthenumberofdifferentaddresse