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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............................................
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