基于mpc8315e的pci-e加密卡硬件系统设计

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1、ABSTRACTABSTRACT：Nowadaysthesecuretransmissionofinfonnationonnetworkhasffaduallyhccomethefocusofattention，andencryptiontechnologyistheefloctiveilleallStosolvethesecurityproblemTheencryptiontechnologyismainlydividedintohvokinds，whicharesoftwareencryptionandhardwareencryptionSoftwaree

2、ncryptionhasdisadvantagesofconsumingalargeamountofsystemresourcebecauseofCI’U‘sparticipationallthetime，lowspeedandeasilybeingdecryptedYet，lhehardwareencryptionhascharacteristicsofhighspeedhighsecurityandsoOllThehardwareencr)q3tioniswidelyusedinthefonnofencr、ptioncard．andencryptcardh

3、aslowcosthighperformancecharacteristicsThereforeitisofgreatsignificancetodevelopthehardwareencryptioncardThesubjectputsforwardasystemdesignsolutionofencryptioncardhardwarebasedonPowerPCplatformandPCIExpress(PCI—Eforshort)busTheencryptioncardUSCSMPC83I5Eprocessorchipasthemainprocesso

4、r．MdchisbelongtotheseriesofthePoxl,erPCproducedbyFreescaleSemiconductorhieTbechiphasrichinterlhces，andthemainworkofthisthesisisdesigningthewholehardwarecircuitsystemofencryptioncardbasedODtheseinterfacesThecircuitdesignincludesPCI—EbusInterfacecircuit．DDR2memorycircuit，NorFlashInter

5、facecircuit．NandFlashinterlacecircuit．extensionmoduleofencryptioninterfacecircuit，UARTinterfacecircuit．JTAGinterfacecircuit，temperaturedetectionmodulecircuit，sequentialmatchingcircuit，clockcircuit．resetcircuitandpowermanagementcircuitThecircuitdesignmainlyfocusesOllPCI一Ebusinterface

6、circuit，DDR2．memoryinterfacecircuitNorFlashinterfacecircuit，NandFlashinterfacecircuitandpowermanagementcircuitBecausePCI—EandDDR2workinhighfrequency,thesignalsofwhichbelongtohighfrequencysignals，andtheperformanceofPCI一EandDDR2influencesthewholesystemverymuchSincetheroutingandsimulat

7、ionforhi曲frequencesignalsimpactsdirectlyonthesigmalintegrityandtheelectromagneticcompatibilityofthesystem，theotheremphasisanddifficultyofthepaperisroutingandsinmlationforIfigh—frequencesignalsRoutingandsimulationofDDR2alecarriedoffparticularlyinthispaper．Theworkofroutingissettingrou

8、tingrules，whichincl