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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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HT45FM2C датащи(PDF) 56 Page - Holtek Semiconductor Inc |
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HT45FM2C датащи(HTML) 56 Page - Holtek Semiconductor Inc |
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56 / 171 page  Rev. 1.10 56 �a� �0� �01� Rev. 1.10 57 �a� �0� �01� HT45FM2C Brushless DC Motor Flash Type 8-Bit MCU HT45FM2C Brushless DC Motor Flash Type 8-Bit MCU Preliminar� PCPU Register Bit 7 6 5 4 3 2 1 0 Name D7 D6 D5 D4 D� D� D1 D0 R/W R/W R/W R/W R/W R/W R/W R/W R/W POR 0 0 0 0 0 0 0 0 Bit7~0 I/OPortbit7~bit0pull-highcontrol PDPU Register Bit 7 6 5 4 3 2 1 0 Name — — — — D� D� D1 D0 R/W — — — — R/W R/W R/W R/W POR — — — — 0 0 0 0 Bit7~4 Unimplemented,readas“0” Bit3~0 PortDbit3~bit0pull-highcontrol Port A Wake-up TheHALTinstructionforcesthemicrocontrollerintotheSLEEPorIDLEModewhichpreserves power,afeaturethatisimportantforbatteryandotherlow-powerapplications.Variousmethods existtowake-upthemicrocontroller,oneofwhichistochangethelogicconditionononeofthePort Apinsfromhightolow.Thisfunctionisespeciallysuitableforapplicationsthatcanbewokenup viaexternalswitches.EachpinonPortAcanbeselectedindividuallytohavethiswake-upfeature usingthePAWUregister. PAWU Register Bit 7 6 5 4 3 2 1 0 Name D7 D6 D5 D4 D� D� D1 D0 R/W R/W R/W R/W R/W R/W R/W R/W R/W POR 0 0 0 0 0 0 0 0 Bit 7~0 PAWU: PortAbit7~bit0Wake-upControl 0:Disable 1:Enable I/O Port Control Registers EachI/OporthasitsowncontrolregisterknownasPAC~PDC,tocontroltheinput/output configuration.Withthiscontrolregister,eachCMOSoutputorinputcanbereconfigured dynamicallyundersoftwarecontrol.EachpinoftheI/Oportsisdirectlymappedtoabitinits associatedportcontrolregister.FortheI/Opintofunctionasaninput,thecorrespondingbitofthe controlregistermustbewrittenasa“1”.Thiswillthenallowthelogicstateoftheinputpintobe directlyreadbyinstructions.Whenthecorrespondingbitofthecontrolregisteriswrittenasa“0”, theI/OpinwillbesetupasaCMOSoutput.Ifthepiniscurrentlysetupasanoutput,instructions canstillbeusedtoreadtheoutputregister.However,itshouldbenotedthattheprogramwillinfact onlyreadthestatusoftheoutputdatalatchandnottheactuallogicstatusoftheoutputpin. |
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