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HT45F2002 Datasheet(PDF) 26 Page - Holtek Semiconductor Inc |
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HT45F2002 Datasheet(HTML) 26 Page - Holtek Semiconductor Inc |
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26 / 31 page  Rev. 1.00 �� ���� 1�� �01� Rev. 1.00 �7 ���� 1�� �01� HT45F2002 2-Wire Communication Flash MCU HT45F2002 2-Wire Communication Flash MCU SDZA [m] SkipifdecrementDataMemoryiszerowithresultinACC Description ThecontentsofthespecifiedDataMemoryarefirstdecrementedby1.Iftheresultis0,the followinginstructionisskipped.TheresultisstoredintheAccumulatorbutthespecified DataMemorycontentsremainunchanged.Asthisrequirestheinsertionofadummy instructionwhilethenextinstructionisfetched,itisatwocycleinstruction.Iftheresultisnot0, theprogramproceedswiththefollowinginstruction. Operation ACC←[m]−1 SkipifACC=0 Affectedflag(s) None SET [m] SetDataMemory Description EachbitofthespecifiedDataMemoryissetto1. Operation [m]←FFH Affectedflag(s) None SET [m].i SetbitofDataMemory Description BitiofthespecifiedDataMemoryissetto1. Operation [m].i←1 Affectedflag(s) None SIZ [m] SkipifincrementDataMemoryis0 Description ThecontentsofthespecifiedDataMemoryarefirstincrementedby1.Iftheresultis0,the followinginstructionisskipped.Asthisrequirestheinsertionofadummyinstructionwhile thenextinstructionisfetched,itisatwocycleinstruction.Iftheresultisnot0theprogram proceedswiththefollowinginstruction. Operation [m]←[m]+1 Skipif[m]=0 Affectedflag(s) None SIZA [m] SkipifincrementDataMemoryiszerowithresultinACC Description ThecontentsofthespecifiedDataMemoryarefirstincrementedby1.Iftheresultis0,the followinginstructionisskipped.TheresultisstoredintheAccumulatorbutthespecified DataMemorycontentsremainunchanged.Asthisrequirestheinsertionofadummy instructionwhilethenextinstructionisfetched,itisatwocycleinstruction.Iftheresultisnot 0theprogramproceedswiththefollowinginstruction. Operation ACC←[m]+1 SkipifACC=0 Affectedflag(s) None SNZ [m].i SkipifbitiofDataMemoryisnot0 Description IfbitiofthespecifiedDataMemoryisnot0,thefollowinginstructionisskipped.Asthis requirestheinsertionofadummyinstructionwhilethenextinstructionisfetched,itisatwo cycleinstruction.Iftheresultis0theprogramproceedswiththefollowinginstruction. Operation Skipif[m].i≠0 Affectedflag(s) None SUB A,[m] SubtractDataMemoryfromACC Description ThespecifiedDataMemoryissubtractedfromthecontentsoftheAccumulator.Theresultis storedintheAccumulator.Notethatiftheresultofsubtractionisnegative,theCflagwillbe clearedto0,otherwiseiftheresultispositiveorzero,theCflagwillbesetto1. Operation ACC←ACC−[m] Affectedflag(s) OV,Z,AC,C |
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