sc520芯片資料

1、PRELIMINARY?Copyright2001AdvancedMicroDevicesInc.Allrightsreserved.FinalDraft#22003Rev:BAmendment0IssueDate:March2001lan?SC520MicrocontrollerIntegrated32BitMicrocontrollerwithPCATCompatiblePeripheralsPCIHostBridgeSynchro

2、nousDRAMControllerDISTINCTIVEACTERISTICSIIndustrystardAm5x86CPUwithfloatingpointunit(FPU)16Kbytewritebackcache–100MHz133MHzoperatingfrequencies–Lowvoltageoperation(ceVCC=2.5V)–5VtolerantIO(3.3Voutputlevels)IE86?familyofx

3、86embeddedprocesss–PartofasoftwarecompatiblefamilyofmicroprocesssmicrocontrollerswellsupptedbyawidevarietyofdevelopmenttoolsIIntegratedPCIhostbridgecontrollerleveragesstardperipheralssoftware–33MHz32bitPCIbusRevision2.2c

4、ompliant–Highthroughput132Mbytespeaktransfer–SupptsuptofiveexternalPCImasters–IntegratedwritepostingreadbufferingfhighthroughputapplicationsISynchronousDRAM(SDRAM)controller–Suppts1664128256MbitSDRAM–Suppts4banksfatotalo

5、f256Mbytes–ErrCrectionCodeprovidessystemreliability–BuffersimprovereadwriteperfmanceIAMDebug?technologyoffersalowcostsolutionftheadvanceddebuggingcapabilitiesrequiredbyembeddeddesigners–Allowsinstructiontracingduringexec

6、utionfromtheAm5x86CPU’sinternalcache–UsesanenhancedJTAGptflowcostdebugging–ParalleldebugptfhighspeeddataexchangeduringincircuitemulationIGeneralPurpose(GP)buswithprogrammabletimingf816bitdevicesprovidesgoodperfmanceatlow

7、costIROMFlashcontrollerf81632bitdevicesIEnhancedPCATcompatibleperipheralsprovideimprovedperfmance–Enhancedprogrammableinterruptcontroller(PIC)priitizes22interruptlevels(upto15externalsources)withflexiblerouting–EnhancedD

8、MAcontrollerincludesdoublebufferchainingextendedaddresstransfercountsflexiblechannelrouting–Two16550compatibleUARTsoperateatbaudratesupto1.15MbitswithoptionalDMAinterfaceIStardPCATcompatibleperipherals–Programmableinterv

9、altimer(PIT)–Realtimeclock(RTC)withbatterybackupcapability114bytesofRAMIAdditionalintegratedperipherals–Threegeneralpurpose16bittimersprovideflexiblecadingf32bitoperation–Watchdogtimerguardsagainstrunawaysoftware–Softwar

10、etimer–Synchronousserialinterface(SSI)offersfullduplexhalfduplexoperation–FlexibleaddressdecodingfprogrammablememyIOmappingsystemaddressingconfigurationI32programmableinputoutput(PIO)pinsINativesupptfpSOSQNXRTXCVxWksWind

11、owsCEoperatingsystemsIIndustrystardBIOSsupptIPlasticBallGridArray(PBGA388)packageGENERALDEIONThelan?SC520microcontrollerisafullfeaturedmicrocontrollerdevelopedfthegeneralembeddedmarket.ThelanSC520microcontrollercombinesa

12、32bitlowvoltageAm5x86CPUwithasetofintegratedperipheralssuitablefbothrealtimePCATcompatibleembeddedapplications.AnintegratedPCIhostbridgeSDRAMcontrollerenhancedPCATcompatibleperipheralsadvanceddebuggingfeaturesprovidethes

13、ystemdesignerwithawiderangeofonchipresourcesallowingsupptflegacydevicesaswellasnewdevicesavailableinthecurrentPCmarketplace.Designedfmediumtohighperfmanceapplicationsinthetelecommunicationsdatacommunicationsinfmationappl

14、iancemarketsthelanSC520microcontrollerisparticularlywellsuitedfapplicationsrequiringhighthroughputcombinedwithlowlatency.ThecompactPlasticBallGridArray(PBGA)packageprovidesahighdegreeoffunctionalityinaverysmallfmfactmaki

15、ngitcosteffectivefmanyapplications.A0.25micronCMOSmanufacturingprocessallowsflowpowerconsumptionalongwithhighperfmance.PRELIMINARYlan?SC520MicrocontrollerDataSheet3TABLEOFCONTENTSDistinctiveacteristics...................

16、.........................................................................................1GeneralDeion.....................................................................................................................1

17、deringInfmation....................................................................................................................2LogicDiagrambyInterface.................................................................

18、..........................................6LogicDiagrambyDefaultPinFunction........................................................................................7ConnectionDiagram.......................................

19、.............................................................................8PinDesignations........................................................................................................................10PinDe

20、signations(PinNumber).............................................................................................11PinDesignations(PinName)................................................................................

21、................13SignalDeions.....................................................................................................................16ArchitecturalOverview..................................................

22、.............................................................28IndustryStardx86Architecture.......................................................................................30AMDebug?TechnologyfAdvancedDebugging....

23、..........................................................30IndustryStardPCIBusInterface....................................................................................30HighPerfmanceSDRAMController..................

24、...............................................................30ROMFlashController...........................................................................................................30FlexibleAddressMappingHardwa

25、re....................................................................................31EasytoUseGPBusInterface..............................................................................................31ClockGenerati

26、on..................................................................................................................31IntegratedPeripherals.................................................................................

27、..........................31JTAGBoundaryScanTestInterface....................................................................................32SystemTestDebugFeatures......................................................

28、..................................32Applications...............................................................................................................................33ClockGenerationControl.....................

29、..............................................................................38InternalClocks......................................................................................................................39ClockS

30、pecifications..............................................................................................................40ClockPinLoading................................................................................

31、.................................40ingaCrystal................................................................................................................4132.768kHzCrystalion.........................................

32、..................................................4133MHzCrystalion.................................................................................................42ThirdOvertoneCrystalComponention......................

33、............................................42Runningthelan?SC520Microcontrollerat33.333MHz...........................................................43BypassingInternalOscillats..........................................

34、.....................................................44RTCVoltageMonit.................................................................................................................45BackupBatteryConsiderations........

35、.....................................................................................46UsinganExternalRTCBackupBattery...........................................................................46NotUsinganExternalRTCBack

36、upBattery.....................................................................46AbsoluteMaximumRatings.......................................................................................................48OperatingRang

37、esatCommercialTemperatures......................................................................48VoltageLevelsfNonPCIInterfacePins................................................................................49Voltage

38、LevelsfPCIInterfacePins........................................................................................49DCacteristicsOverCommercialOperatingRanges..........................................................50Capac

39、itance...............................................................................................................................51NonPCIInterfacePinCapacitance........................................................

40、..............................51PCIInterfacePinCapacitance..............................................................................................51CrystalCapacitance................................................

41、..............................................................51DeratingCurves....................................................................................................................51Poweracteristics........

42、........................................................................................................56Thermalacteristics................................................................................................

43、...................56388PinPBGAPackage.............................................................................................................56SwitchingacteristicsWavefms............................................