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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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HT69F360 데이터시트(PDF) 190 Page - Holtek Semiconductor Inc |
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HT69F360 데이터시트(HTML) 190 Page - Holtek Semiconductor Inc |
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190 / 235 page  Rev. 1.30 190 �ove��e� 1�� �01� Rev. 1.30 191 �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 Multi-function Interrupt WithinthesedevicesthereareuptothreeMulti-functioninterrupts.Unliketheotherindependent interrupts,theseinterruptshavenoindependentsource,butratherareformedfromotherexisting interruptsources,namelytheTMInterrupts,EEPROMInterruptandLVDInterrupt. AMulti-functioninterruptrequestwilltakeplacewhenanyoftheMulti-functioninterruptrequest flags,MF0F~MF2Fareset.TheMulti-functioninterruptflagswillbesetwhenanyoftheirincluded functionsgenerateaninterruptrequestflag.Toallowtheprogramtobranchtoitsrespectiveinterrupt vectoraddress,whentheMulti-functioninterruptisenabledandthestackisnotfull,andeitherone oftheinterruptscontainedwithineachofMulti-functioninterruptoccurs,asubroutinecalltooneof theMulti-functioninterruptvectorswilltakeplace.Whentheinterruptisserviced,therelatedMulti- Functionrequestflag,willbeautomaticallyresetandtheEMIbitwillbeautomaticallyclearedto disableotherinterrupts. However,itmustbenotedthat,althoughtheMulti-functionInterruptflagswillbeautomatically resetwhentheinterruptisserviced,therequestflagsfromtheoriginalsourceoftheMulti- functioninterrupts,namelytheTMInterrupts,LVDInterruptandEEPROMInterrupt,willnotbe automaticallyresetandmustbemanuallyresetbytheapplicationprogram. EEPROM Interrupt TheEEPROMInterruptiscontainedwithintheMulti-functionInterrupt.AnEEPROMInterrupt requestwilltakeplacewhentheEEPROMInterruptrequestflag,DEF,isset,whichoccurswhen anEEPROMWritecycleends.Toallowtheprogramtobranchtoitsrespectiveinterruptvector address,theglobalinterruptenablebit,EMI,EEPROMInterruptenablebit,DEE,andassociated Multi-functioninterruptenablebitmustfirstbeset.Whentheinterruptisenabled,thestackisnot fullandanEEPROMWritecycleends,asubroutinecalltotherespectiveMulti-functionInterrupt vector,willtakeplace.WhentheEEPROMInterruptisserviced,theEMIbitwillbeautomatically clearedtodisableotherinterrupts,howeveronlytheMulti-functioninterruptrequestflagwillbe alsoautomaticallycleared.AstheDEFflagwillnotbeautomaticallycleared,ithastobeclearedby theapplicationprogram. LVD Interrupt TheLowVoltageDetectorInterruptiscontainedwithintheMulti-functionInterrupt.AnLVD InterruptrequestwilltakeplacewhentheLVDInterruptrequestflag,LVF,isset,whichoccurs whentheLowVoltageDetectorfunctiondetectsalowpowersupplyvoltage.Toallowtheprogram tobranchtoitsrespectiveinterruptvectoraddress,theglobalinterruptenablebit,EMI,andLow VoltageInterruptenablebit,LVE,andassociatedMulti-functioninterruptenablebit,mustfirst beset.Whentheinterruptisenabled,thestackisnotfullandalowvoltageconditionoccurs, asubroutinecalltotheMulti-functionInterruptvector,willtakeplace.WhentheLowVoltage Interruptisserviced,theEMIbitwillbeautomaticallyclearedtodisableotherinterrupts,however onlytheMulti-functioninterruptrequestflagwillbealsoautomaticallycleared.AstheLVFflagwill notbeautomaticallycleared,ithastobeclearedbytheapplicationprogram. |
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