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HT66F0176 Datasheet(PDF) 22 Page - Holtek Semiconductor Inc |
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HT66F0176 Datasheet(HTML) 22 Page - Holtek Semiconductor Inc |
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22 / 165 page ![]() Rev. 1.20 22 ����st 2�� 201� Rev. 1.20 23 ����st 2�� 201� HT66F0176 A/D Flash MCU with EEPROM HT66F0176 A/D Flash MCU with EEPROM Stack Pointer Stack Level 2 Stack Level 1 Stack Level 3 : : : Stack Level � Pro�ram Memory Pro�ram Co�nter Bottom of Stack Top of Stack Arithmetic and Logic Unit – ALU Thearithmetic-logicunitorALUisacriticalareaofthemicrocontrollerthatcarriesoutarithmetic andlogicoperationsoftheinstructionset.Connectedtothemainmicrocontrollerdatabus,theALU receivesrelatedinstructioncodesandperformstherequiredarithmeticorlogicaloperationsafter whichtheresultwillbeplacedinthespecifiedregister.AstheseALUcalculationoroperationsmay resultincarry,borroworotherstatuschanges,thestatusregisterwillbecorrespondinglyupdatedto reflectthesechanges.TheALUsupportsthefollowingfunctions: • Arithmeticoperations: ADD,ADDM,ADC,ADCM,SUB,SUBM,SBC,SBCM,DAA • Logicoperations: AND,OR,XOR,ANDM,ORM,XORM,CPL,CPLA • Rotation: RRA,RR,RRCA,RRC,RLA,RL,RLCA,RLC • IncrementandDecrement: INCA,INC,DECA,DEC • Branchdecision: JMP,SZ,SZA,SNZ,SIZ,SDZ,SIZA,SDZA,CALL,RET,RETI |
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