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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) 32 Page - Holtek Semiconductor Inc |
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HT45F56 датащи(HTML) 32 Page - Holtek Semiconductor Inc |
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32 / 90 page  Rev. 1.11 32 April 11, 2017 Rev. 1.11 33 April 11, 2017 HT45F56 Shock Detector Flash MCU HT45F56 Shock Detector Flash MCU Bit4 Unimplemented,readas0. Bit3 LTO:Lowspeedsystemoscillatorreadyflag 0:Notready 1:Ready Thisisthelowspeedsystemoscillatorreadyflagwhichindicateswhenthelowspeed systemoscillatorisstableafterpoweronresetorawake-uphasoccurred.Theflag willbelowwhenintheSLEEP0mode,butafterawake-uphasoccurredtheflagwill changetoahighlevelafter1~2cyclesastheLIRCoscillatorisused. Bit2 HTO:Highspeedsystemoscillatorreadyflag 0:Notready 1:Ready Thisisthehighspeedsystemoscillatorreadyflagwhichindicateswhenthehighspeed systemoscillatorisstable.Thisflagisclearedto“0”byhardwarewhenthedeviceis poweredonandthenchangestoahighlevelafterthehighspeedsystemoscillatoris stable.Thereforethisflagwillalwaysbereadas“1”bytheapplicationprogramafter devicepower-on. Bit1 IDLEN:IDLEmodecontrol 0:Disable 1:Enable ThisistheIDLEmodecontrolbitanddetermineswhathappenswhentheHALT instructionisexecuted.Ifthisbitishigh,whenaHALTinstructionisexecutedthe devicewillentertheIDLEMode.IntheIDLE1Mode,theCPUwillstoprunning butthesystemclockwillcontinuetokeeptheperipheralfunctionsoperational,asthe FSYSONbitishigh.IftheFSYSONbitislow,theCPUandthesystemclockwillall stopintheIDLE0mode.Ifthisbitislow,thedevicewillentertheSLEEPModewhen aHALTinstructionisexecuted. Bit0 HLCLK:Systemclockselection 0:fH/2~fH/64orfSUB 1:fH ThisbitisusedtoselectifthefHclock,thefH/2~fH/64clockorthefSUBclockisused asthesystemclock.Whenthisbitishigh,thefHclockwillbeselectedandiflowthe fH/2~fH/64orfSUBclockwillbeselected.WhenthesystemclockswitchesfromthefH clocktothefSUBclockandthefHclockwillbeautomaticallyswitchedofftoconserve power. SMOD1 Register Bit 7 6 5 4 3 2 1 0 Name FSYSON — — — RSTF LVRF — WRF R/W R/W — — — R/W R/W — R/W POR 0 — — — 0 x — 0 “x”: unknown Bit7 FSYSON:fSYScontrolinIDLEmode 0:Disable 1:Enable Bit6~4 Unimplemented,readas0. Bit3 RSTF:Resetcontrolregistersoftwareresetflag Describedelsewhere. Bit2 LVRF:LVRfunctionresetflag Describedelsewhere. Bit1 Unimplemented,readas0. Bit0 WRF:WDTcontrolregistersoftwareresetflag Describedelsewhere. |
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