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HT45R2K-C Datasheet(PDF) 74 Page - Holtek Semiconductor Inc |
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HT45R2K-C Datasheet(HTML) 74 Page - Holtek Semiconductor Inc |
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74 / 105 page  Rev. 1.40 74 �a��� 1�� �01� Rev. 1.40 7� �a��� 1�� �01� HT45R2K-C/-B/-A Dual Slope 16K/8K/4K ASSP MCU for Body Fat Scale HT45R2K-C/-B/-A Dual Slope 16K/8K/4K ASSP MCU for Body Fat Scale �ain P�og�am Enable bit set? �ain P�og�am Automati�ally Disable Inte��upt Clea� E�I & Request Flag Wait fo� �~3 Inst�u�tion Cy�les ISR Ent�y ... ... RETI (it will set E�I automati�ally) Inte��upt Request o� Inte��upt Flag Set by Inst�u�tion N Y Interrupt Flow Interrupt Priority Interrupts,occurringintheintervalbetweentherisingedgesoftwoconsecutiveT2pulses,willbe servicedonthelatterofthetwoT2pulses,ifthecorrespondinginterruptsareenabled.Incaseof simultaneousrequests,thefollowingtableshowstheprioritythatisapplied.Thesecanbemasked byresettingtheEMIbit. Interrupt Source Priority Vector Exte�nal Inte��upt 0 1 04H Timer/Event Counter 0 Overflow � 08H Timer/Event Counter 1 Overflow 3 0CH �ulti Fun�tion Inte��upt (Timer/Event Counter overflow 2 and Touch Key Module 10-bit/16-bit counter overflow) 4 10H A/D Conve�to� Inte��upt � 14H Tou�� Key Inte��upt 6 18H Interrupt Subroutine Vector Incaseswherebothexternalandinternalinterruptsareenabledandwhereanexternalandinternal interruptoccurssimultaneously,theexternalinterruptwillalwayshavepriorityandwillthereforebe servicedfirst.Suitablemaskingoftheindividualinterruptsusingtheinterruptregisterscanprevent simultaneousoccurrences. External Interrupt Foranexternalinterrupttooccur,theglobalinterruptenablebit,EMI,andexternalinterruptenable bit,EEI,mustfirstbeset.Anactualexternalinterruptwilltakeplacewhentheexternalinterrupt requestflag,EIF,isset,asituationthatwilloccurwhenanedgetransitionappearsontheexternal INTline.Thetypeoftransitionthatwilltriggeranexternalinterrupt,whetherhightolow,lowto highorbothisdeterminedbytheEINTC0andEINTC1bits,whicharebits6and7respectively,in theCTRL1controlregister.Thesetwobitscanalsodisabletheexternalinterruptfunction. |
Similar Part No. - HT45R2K-C_15 |
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Similar Description - HT45R2K-C_15 |
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