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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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HT45F56 датащи(PDF) 52 Page - Holtek Semiconductor Inc |
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HT45F56 датащи(HTML) 52 Page - Holtek Semiconductor Inc |
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52 / 90 page  Rev. 1.11 52 April 11, 2017 Rev. 1.11 53 April 11, 2017 HT45F56 Shock Detector Flash MCU HT45F56 Shock Detector Flash MCU Compact TM Operation TheCompactTMcoreisa10-bitcount-upcounterwhichisdrivenbyauserselectableinternalor externalclocksource.Therearealsotwointernalcomparatorswiththenames,ComparatorAand ComparatorP.ThesecomparatorswillcomparethevalueinthecounterwithCCRPandCCRA registers.TheCCRPisthree-bitwidewhosevalueiscomparedwiththehighestthreebitsinthe counterwhiletheCCRAisten-bitwideandthereforecompareswithallcounterbits. Theonlywayofchangingthevalueofthe10-bitcounterusingtheapplicationprogram,isto clearthecounterbychangingtheCTONbitfromlowtohigh.Thecounterwillalsobecleared automaticallybyacounteroverfloworacomparematchwithoneofitsassociatedcomparators. Whentheseconditionsoccur,aTMinterruptsignalwillalsousuallybegenerated.TheCompact TypeTMcanoperateinanumberofdifferentoperationalmodes,canbedrivenbydifferentclock sourcesincludinganinputpinandcanalsocontrolanoutputpin.Alloperatingsetupconditionsare selectedusingrelevantinternalregisters. Compact Type TM Register Description OveralloperationoftheCompactTMiscontrolledusingaseriesofregisters.Areadonlyregister pairexiststostoretheinternalcounter16-bitvalue,whilearead/writeregisterpairexiststostore theinternal10-bitCCRAvalue.Theremainingtworegistersarecontrolregisterswhichsetupthe differentoperatingandcontrolmodesandaswellasthethreeCCRPbits. Register Name Bit 7 6 5 4 3 2 1 0 CTMC0 CTPAU CTCK2 CTCK1 CTCK0 CTON CTRP2 CTRP1 CTRP0 CTMC1 CTM1 CTM0 CTIO1 CTIO0 CTOC CTPOL CTDPX CTCCLR CTMDL D7 D6 D5 D4 D3 D2 D1 D0 CTMDH — — — — — — D9 D8 CTMAL D7 D6 D5 D4 D3 D2 D1 D0 CTMAH — — — — — — D9 D8 10-bit Compact TM Registers List CTMDL Register Bit 7 6 5 4 3 2 1 0 Name D7 D6 D5 D4 D3 D2 D1 D0 R/W R R R R R R R R POR 0 0 0 0 0 0 0 0 Bit7~0 CTMCounterLowByteRegisterbit7~bit0 CTM10-bitCounterbit7~bit0 CTMDH Register Bit 7 6 5 4 3 2 1 0 Name — — — — — — D9 D8 R/W — — — — — — R R POR — — — — — — 0 0 Bit7~2 Unimplemented,readas“0” Bit1~0 CTMCounterHighByteRegisterbit1~bit0 CTM10-bitCounterbit9~bit8 |
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