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HT46R003B Arkusz danych(PDF) 53 Page - Holtek Semiconductor Inc |
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HT46R003B Arkusz danych(HTML) 53 Page - Holtek Semiconductor Inc |
53 / 76 page Rev. 1.00 5� ��ne 1�� �01� Rev. 1.00 53 ��ne 1�� �01� HT46R003B Cost-Effective A/D 8-bit OTP MCU HT46R003B Cost-Effective A/D 8-bit OTP MCU Interrupts Interruptsareanimportantpartofanymicrocontrollersystem.Whenanexternaleventoraninternal functionsuchasaTimer/EventCounterrequiresmicrocontrollerattention,theircorresponding interruptwillenforceatemporarysuspensionofthemainprogramallowingthemicrocontrollerto directattentiontotheirrespectiveneeds. Thedevicecontainsonlyoneexternalinterruptandmultipleinternalinterrupts.Theexternal interruptsarecontrolledbytheactionoftheexternalinterruptpin,whiletheinternalinterruptis controlledbytheTimer/EventCounter,theA/DconverterinterruptandTimerBaseinterrupt. Interrupt Register Overallinterruptcontrol,whichmeansinterruptenablingandrequestflagsetting,iscontrolledby usingregisters,INTC0andINTC1.Bycontrollingtheappropriateenablebitsintheregistereach individualinterruptcanbeenabledordisabled.Alsowhenaninterruptoccurs,thecorresponding requestflagwillbesetbythemicrocontroller.Theglobalenableflagclearedtozerowilldisableall interrupts. Function Enable Bit Request Flag Global EMI — INT Pin INTE INTF Timer TE TF A/D Converter ADE ADF Timer Base TBE TBF INTC0 Register Bit 7 6 5 4 3 2 1 0 Name — ADF TF INTF ADE TE INTE EMI 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 Unimplemented,readas"0" Bit5 ADF:A/Dinterrruptrequestflag 0:Norequest 1:Interruptrequest Bit5 TF:Timer/EventCounterinterrruptrequestflag 0:Norequest 1:Interruptrequest Bit4 INTF:INTpininterruptrequestflag 0:Norequest 1:Interruptrequest Bit3 ADE:A/Dinterruptcontrol 0:Disable 1:Enable Bit2 TE:Timer/EventCounterinterruptcontrol 0:Disable 1:Enable Bit1 INTE:INTinterruptcontrol 0:Disable 1:Enable Bit0 EMI:Globalinterruptcontrol 0:Disable 1:Enable |
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