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HT66F20 Datasheet(PDF) 271 Page - Holtek Semiconductor Inc |
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HT66F20 Datasheet(HTML) 271 Page - Holtek Semiconductor Inc |
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271 / 298 page  Rev. 1.90 �70 �e���a�� 18� �01� Rev. 1.90 �71 �e���a�� 18� �01� HT66F20/HT66F30/HT66F40/HT66F50/HT66F60 HT66FU30/HT66FU40/HT66FU50/HT66FU60 Enhanced A/D Flash Type 8-Bit MCU with EEPROM HT66F20/HT66F30/HT66F40/HT66F50/HT66F60 HT66FU30/HT66FU40/HT66FU50/HT66FU60 Enhanced A/D Flash Type 8-Bit MCU with EEPROM RRA [m] RotateDataMemoryrightwithresultinACC Description DatainthespecifiedDataMemoryandthecarryflagarerotatedrightby1bitwithbit0 rotatedintobit7.TherotatedresultisstoredintheAccumulatorandthecontentsofthe DataMemoryremainunchanged. Operation ACC.i←[m].(i+1);(i=0~6) ACC.7←[m].0 Affectedflag(s) None RRC [m] RotateDataMemoryrightthroughCarry Description ThecontentsofthespecifiedDataMemoryandthecarryflagarerotatedrightby1bit.Bit0 replacestheCarrybitandtheoriginalcarryflagisrotatedintobit7. Operation [m].i←[m].(i+1);(i=0~6) [m].7←C C←[m].0 Affectedflag(s) C RRCA [m] RotateDataMemoryrightthroughCarrywithresultinACC Description DatainthespecifiedDataMemoryandthecarryflagarerotatedrightby1bit.Bit0replaces theCarrybitandtheoriginalcarryflagisrotatedintobit7.Therotatedresultisstoredinthe AccumulatorandthecontentsoftheDataMemoryremainunchanged. Operation ACC.i←[m].(i+1);(i=0~6) ACC.7←C C←[m].0 Affectedflag(s) C SBC A,[m] SubtractDataMemoryfromACCwithCarry Description ThecontentsofthespecifiedDataMemoryandthecomplementofthecarryflagare subtractedfromtheAccumulator.TheresultisstoredintheAccumulator.Notethatifthe resultofsubtractionisnegative,theCflagwillbeclearedto0,otherwiseiftheresultis positiveorzero,theCflagwillbesetto1. Operation ACC←ACC−[m]−C Affectedflag(s) OV,Z,AC,C SBCM A,[m] SubtractDataMemoryfromACCwithCarryandresultinDataMemory Description ThecontentsofthespecifiedDataMemoryandthecomplementofthecarryflagare subtractedfromtheAccumulator.TheresultisstoredintheDataMemory.Notethatifthe resultofsubtractionisnegative,theCflagwillbeclearedto0,otherwiseiftheresultis positiveorzero,theCflagwillbesetto1. Operation [m]←ACC−[m]−C Affectedflag(s) OV,Z,AC,C SDZ [m] SkipifdecrementDataMemoryis0 Description ThecontentsofthespecifiedDataMemoryarefirstdecrementedby1.Iftheresultis0the followinginstructionisskipped.Asthisrequirestheinsertionofadummyinstructionwhile thenextinstructionisfetched,itisatwocycleinstruction.Iftheresultisnot0theprogram proceedswiththefollowinginstruction. Operation [m]←[m]−1 Skipif[m]=0 Affectedflag(s) None |
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