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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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HT45F3W датащи(PDF) 73 Page - Holtek Semiconductor Inc |
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HT45F3W датащи(HTML) 73 Page - Holtek Semiconductor Inc |
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73 / 167 page  Rev. 1.50 7� De�e��e� 01� �01� Rev. 1.50 73 De�e��e� 01� �01� HT45F3W R-Type Blood Pressure Meter Flash MCU HT45F3W R-Type Blood Pressure Meter Flash MCU I/O Port Control Registers EachI/OporthasitsowncontrolregisterknownasPAC~PDC,tocontroltheinput/output configuration.OnlytheoutputforPA7isopen-drainoutput.Withthiscontrolregister,eachCMOS outputorinputcanbereconfigureddynamicallyundersoftwarecontrol.EachpinoftheI/Oportsis directlymappedtoabitinitsassociatedportcontrolregister.FortheI/Opintofunctionasaninput, thecorrespondingbitofthecontrolregistermustbewrittenasa“1”.Thiswillthenallowthelogic stateoftheinputpintobedirectlyreadbyinstructions.Whenthecorrespondingbitofthecontrol registeriswrittenasa“0”,theI/OpinwillbesetupasaCMOSoutput.Ifthepiniscurrentlysetup asanoutput,instructionscanstillbeusedtoreadtheoutputregister.However,itshouldbenoted thattheprogramwillinfactonlyreadthestatusoftheoutputdatalatchandnottheactuallogic statusoftheoutputpin. PAC Register Bit 7 6 5 4 3 2 1 0 Na�e PAC7 PAC� PAC5 PAC4 PAC3 PAC� PAC1 PAC0 R/W R/W R/W R/W R/W R/W R/W R/W R/W POR 1 1 1 1 1 1 1 1 PBC Register Bit 7 6 5 4 3 2 1 0 Na�e — — PBC5 PBC4 PBC3 PBC� PBC1 PBC0 R/W — — R/W R/W R/W R/W R/W R/W POR — — 1 1 1 1 1 1 PCC Register Bit 7 6 5 4 3 2 1 0 Na�e — PCC� PCC5 PCC4 PCC3 PCC� PCC1 PCC0 R/W — R/W R/W R/W R/W R/W R/W R/W POR — 1 1 1 1 1 1 1 PDC Register Bit 7 6 5 4 3 2 1 0 Na�e PDC7 PDC� PDC5 PDC4 PDC3 PDC� PDC1 PDC0 R/W R/W R/W R/W R/W R/W R/W R/W R/W POR 1 1 1 1 1 1 1 1 “—”Unimplemented,readas“0” PACn/PBCn/PCCn/PDCn:I/OPortInput/OutputControl 0:Output 1:Input |
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