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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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HT69F360 датащи(PDF) 66 Page - Holtek Semiconductor Inc |
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HT69F360 датащи(HTML) 66 Page - Holtek Semiconductor Inc |
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66 / 235 page  Rev. 1.30 �� �ove��e� 1�� �01� Rev. 1.30 �7 �ove��e� 1�� �01� HT69F340/HT69F350/HT69F360 TinyPowerTM I/O Flash MCU with LCD & EEPROM HT69F340/HT69F350/HT69F360 TinyPowerTM I/O Flash MCU with LCD & EEPROM IDLE1 Mode TheIDLE1ModeisenteredwhenanHALTinstructionisexecutedandwhentheFHIDENand FSIDENbitsintheSCCregisterarebothhigh.IntheIDLE1ModetheCPUwillbeswitchedoff butboththehighandlowspeedoscillatorwillbeturnedontoprovideaclocksourcetokeepsome peripheralfunctionsoperational. IDLE2 Mode TheIDLE2ModeisenteredwhenanHALTinstructionisexecutedandwhentheFHIDENbitinthe SCCregisterishighandtheFSIDENbitintheSCCregisterislow.IntheIDLE2ModetheCPU willbeswitchedoffbutthehighspeedoscillatorwillbeturnedontoprovideaclocksourcetokeep someperipheralfunctionsoperational.AndiftheWDTisenabled,thefSUBwillalsobeontoprovide aclockfortheWDT.IftheWDTisdisabled,thefSUBwillalsobeoff. Control Register Theregister,SCC,isusedforoverallcontroloftheinternalclockswithinthesedevices.Theregister HXTCisusedforHXToscillatorcontrolwhiletheHIRCCregisterisfortheHIRCoscillator control. SCC Register Bit 7 6 5 4 3 2 1 0 �a�e CKS� CKS1 CKS0 — FHS FSS FHIDE� FSIDE� R/W R/W R/W R/W — R/W R/W R/W R/W POR 0 0 0 — 0 0 0 0 Bit7~5 CKS2~CKS0:Thesystemclockselection 000:fH 001:fH/2 010:fH/4 011:fH/8 100:fH/16 101:fH/32 110:fH/64 111:fSUB Thesethreebitsareusedtoselectwhichclockisusedasthesystemclocksource.In additiontothesystemclocksourcedirectlyderivedfromfHorfSUB,adividedversion ofthehighspeedsystemoscillatorcanalsobechosenasthesystemclocksource. Bit4 Unimplemented,readas“0” Bit3 FHS:HighFrequencyClockselection 0:HIRC 1:HXT Bit2 FSS:LowFrequencyClockselection 0:LIRC 1:LXT Bit1 FHIDEN:HighfrequencyoscillatorcontrolwhenCPUisoff 0:Disable 1:Enable Bit0 FSIDEN:LowfrequencyoscillatorcontrolwhenCPUisoff 0:Disable 1:Enable ThisFSIDENbitisusedtocontrolwhetheralowspeedoscillatorisactivatedor stoppedwhentheCPUisswitchedoffbyexecutinganHALTinstruction.Whenthe LIRCoscillatorisselectedtobethelowspeedoscillator,theLIRCoscillatorwillalso becontrolledbythisbittogetherwiththeWDTfunctionenablecontrolbit.When thisbitisclearedto0,buttheWDTfunctionisenabled,theLIRCoscillatorwillbe enabled. |
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