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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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HT45F75 데이터시트(PDF) 145 Page - Holtek Semiconductor Inc |
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HT45F75 데이터시트(HTML) 145 Page - Holtek Semiconductor Inc |
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145 / 190 page  Rev. 1.10 1�� De�e��e� 1�� �01� Rev. 1.10 1�5 De�e��e� 1�� �01� HT45F75 Body Fat Scale Flash MCU HT45F75 Body Fat Scale Flash MCU Interrupts Interruptsareanimportantpartofanymicrocontrollersystem.Whenanexternaleventoran internalfunctionsuchasaTimerModuleoranA/Dconverterrequiresmicrocontrollerattention, theircorrespondinginterruptwillenforceatemporarysuspensionofthemainprogramallowingthe microcontrollertodirectattentiontotheirrespectiveneeds.Thedevicecontainsseveralexternal interruptandinternalinterruptsfunctions.Theexternalinterruptsaregeneratedbytheactionofthe externalINT0~INT1pins,whiletheinternalinterruptsaregeneratedbyvariousinternalfunctions suchastheTMs,TimeBase,LVD,EEPROMandtheA/Dconverter. Interrupt Registers Overallinterruptcontrol,whichbasicallymeansthesettingofrequestflagswhencertain microcontrollerconditionsoccurandthesettingofinterruptenablebitsbytheapplicationprogram, iscontrolledbyaseriesofregisters,locatedintheSpecialPurposeDataMemory.Thefirstisthe INTC0~INTC2registerswhichsetuptheprimaryinterrupts,thesecondistheMFI0~MFI3registers whichsetuptheMulti-functioninterrupts.FinallythereisanINTEGregistertosetuptheexternal interrupttriggeredgetype. Eachregistercontainsanumberofenablebitstoenableordisableindividualregistersaswellas interruptflagstoindicatethepresenceofaninterruptrequest.Thenamingconventionofthese followsaspecificpattern.Firstislistedanabbreviatedinterrupttype,thenthe(optional)numberof thatinterruptfollowedbyeitheran“E”forenable/disablebitor“F”forrequestflag. Function Enable Bit Request Flag Notes Glo�al EMI — — INTn Pin INTnE INTnF n=0~1 Multi-fun�tion MFnE MFnF n=0~3 A/D Conve�te� ADE ADF — Ti�e Base TBnE TBnF n=0~1 LVD LVE LVF — EEPROM DEE DEF — SIM SIE SIF — I�C ti�e out I�CTOE I�CTOF — UART UIE UIF — TM TnPE TnPF n=0~� TnAE TnAF Interrupt Register Bit Naming Conventions |
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