pdf文档 MEMORY存储芯片P87C52SFBB中文规格书

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摘要:Slave1EnhancedUARTTheUARToperatesinalloftheusualmodesthataredescribedinthefirstsectionofDataHandbookIC20,80C51-Based8-BitMicrocontrollers.InadditiontheUARTcanperformframingerrordetectbylookingformissingstopbits,andautomaticaddressrecognition.TheUARTalsofullysupportsmultiprocessorcommunicationasdoesthestandard80C51UART.WhenusedforframingerrordetecttheUARTlooksformissingstopbitsinthecommunication.AmissingbitwillsettheFEbitintheSCONregister.TheFEbitsharestheSCON.7bitwithSM0andthefunctionofSCON.7isdeterminedbyPCON.6(SMOD0)(seeFigure7).IfSMOD0issetthenSCON.7functionsasFE.SCON.7functionsasSM0whenSMOD0iscleared.WhenusedasFESCON.7canonlybeclearedbysoftware.RefertoFigure8.AutomaticAddress

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