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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) 91 Page - Holtek Semiconductor Inc |
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HT45F3W датащи(HTML) 91 Page - Holtek Semiconductor Inc |
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91 / 167 page  Rev. 1.50 90 De�e��e� 01� �01� Rev. 1.50 91 De�e��e� 01� �01� HT45F3W R-Type Blood Pressure Meter Flash MCU HT45F3W R-Type Blood Pressure Meter Flash MCU Standard Type TM Register Description OveralloperationoftheStandardTMiscontrolledusingaseriesofregisters.Areadonlyregister pairexiststostoretheinternalcounter16-bitvalue,whilearead/writeregisterpairexiststostore theinternal16-bitCCRAvalue.Theremainingtworegistersarecontrolregisterswhichsetupthe differentoperatingandcontrolmodesaswellastheeightCCRPbits. Name Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 TM�C0 T�PAU T�CK� T�CK1 T�CK0 T�ON — — — TM�C1 T�M1 T�M0 T�IO1 T�IO0 T�OC T�POL T�DPX T�CCLR TM�DL D7 D� D5 D4 D3 D� D1 D0 TM�DH D15 D14 D13 D1� D11 D10 D9 D8 TM�AL D7 D� D5 D4 D3 D� D1 D0 TM�AH D15 D14 D13 D1� D11 D10 D9 D8 TM�RP D7 D� D5 D4 D3 D� D1 D0 16-bit Standard TM Register List TM2C0 Register Bit 7 6 5 4 3 2 1 0 Na�e T�PAU T�CK� T�CK1 T�CK0 T�ON — — — R/W R/W R/W R/W R/W R/W — — — POR 0 0 0 0 0 — — — Bit7 T2PAU:TM2CounterPauseControl 0:Run 1:Pause Thecountercanbepausedbysettingthisbithigh.Clearingthebittozerorestores normalcounteroperation.WheninaPauseconditiontheTMwillremainpoweredup andcontinuetoconsumepower.Thecounterwillretainitsresidualvaluewhenthisbit changesfromlowtohighandresumecountingfromthisvaluewhenthebitchanges toalowvalueagain. Bit6~4 T2CK2~T2CK0:SelectTM2Counterclock 000:fSYS/4 001:fSYS 010:fH/16 011:fH/64 100:fTBC 101:Reserved 110:TCK2risingedgeclock 111:TCK2fallingedgeclock ThesethreebitsareusedtoselecttheclocksourcefortheTM.SelectingtheReserved clockinputwilleffectivelydisabletheinternalcounter.Theexternalpinclocksource canbechosentobeactiveontherisingorfallingedge.TheclocksourcefSYSisthe systemclock,whilefHandfTBCareotherinternalclocks,thedetailsofwhichcanbe foundintheoscillatorsection. Bit3 T2ON:TM2CounterOn/OffControl 0:Off 1:On Thisbitcontrolstheoverallon/offfunctionoftheTM.Settingthebithighenablesthe countertorun,clearingthebitdisablestheTM.Clearingthisbittozerowillstopthe counterfromcountingandturnofftheTMwhichwillreduceitspowerconsumption. Whenthebitchangesstatefromlowtohightheinternalcountervaluewillbereset tozero,howeverwhenthebitchangesfromhightolow,theinternalcounterwill retainitsresidualvalue.IftheTMisintheCompareMatchOutputModethentheTM outputpinwillberesettoitsinitialcondition,asspecifiedbytheT2OCbit,whenthe T2ONbitchangesfromlowtohigh. Bit2~0 Unimplemented,readas“0” |
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