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时间: 2019-12-25 22:00
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Theenhancedhostportinterface(EHPI)ontheTMS320VC5509andTMS320VC5510DSPsprovidesa16-bitportthroughwhichahostdevicemayaccesstheinternalandexternalmemoryspaceoftheDSP.TheflexibilityoftheEHPIinterfaceallowsvarioushostdevicestointerfacewiththeDSPusingminimalornoexternalinterfacelogic.ThisdocumentdescribesvariouspossibleEHPIconfigurationsandexplainshowtoproperlyinterfacetheEHPItoahostdevice.ThedocumentalsoexplainsthepropersequenceforloadingbootcodetotheDSPviaEHPI.SummariesofEHPIsignaldescriptions,registerdefinitions,andEHPImemorymapsareincludedinAppendixesA,B,andC.……