Denver_PELS_20070313_White_Data Communication Issues for Digital Power Management.pdf

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1、DataCommunicationIssuesForDigitalPowerManagementBobWhiteTuesday,13May2007DiscoveryLearningCenterUniversityOfColorado,Boulder,ColoradoNote:ThispresentationwasoriginallypresentedinTechnicalSession30ofthe2007IEEEAppliedPowerElectronicsConferenceAndExposition(APEC2007)DenverChapter,I

2、EEEPowerElectronicsSocietywww.denverpels.orgDataCommunicationsIssuesForDigitalPowerSystemManagementRobertV.WhiteDavidL.FreemanArtesynTechnologiesTexasInstrumentsWestminster,ColoradoDallas,Texas–1–PresentationOverview•Requirements–Physical–Fiscal–DataFlow•DataCommunicationCharacte

3、ristics–TypesOfBuses–IssuesAndConstraints•Recommendations–ByDataBus–ByApplication–2–FundamentalRequirements•LowCost,LowCost&LowCost–Component-LowCost–Development-LowCost•Robust–CarryDataWithoutCorruptionOrInterruptionInThePresenceOfNoise–DoesNotPasstheBurdenToTheHost•MustSupportT

4、imeCriticalCommunication–AddressTheNeedForAlarmsAndAlerts–AddressTheNeedForFastHostIntervention–3–AdditionalRequirements:WhoTalksToWhom?–4–AdditionalRequirements:WhoTalksToWhom?–5–AdditionalRequirements:WhoTalksToWhom?–6–AdditionalRequirements:WhoTalksToWhom?–7–AdditionalRequirem

5、ents:WhoTalksToWhom?–8–AdditionalRequirements:WhoTalksToWhom?–9–AdditionalRequirements:WhoTalksToWhom?–10–AdditionalRequirements:WhoTalksToWhom?–11–AdditionalRequirements:WhoTalksToWhom?SystemHostToLocalController–12–AdditionalRequirements:WhoTalksToWhom?LocalControllerToLocalCon

6、verters–13–AdditionalRequirements:WhoTalksToWhom?LegacyInterfaces–14–AdditionalRequirements:WhoTalksToWhom?ConverterToConverter–15–AdditionalRequirements:RealTimeData•TimeCriticalInformationOfTwoTypes–Events–Parametric•FaultEventsCanBeCatastrophicAndMustBeTransmittedWithMinimumDe

7、lay•ParametricDataRequiresDataRatesOfTensOfMegabitsPerSecond•Recommendation–Events:DedicatedSignalLines–Parametric:Dedicated,CustomizedBuses–16–AdditionalRequirements:HotSwap•ACommonRequirement•HotInsertionOrRemovalMustNot:–InterruptBusTraffic–RequireComplexSystemResponse•MoreOnT

8、hisLater–17–DataCommunicationCharacteris