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HT45F2002 Datasheet(PDF) 24 Page - Holtek Semiconductor Inc

Part # HT45F2002
Description  2-Wire Communication Flash MCU
PDF  31 Pages
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Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT45F2002 Datasheet(HTML) 24 Page - Holtek Semiconductor Inc

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HT45F2002
2-Wire Communication Flash MCU
HT45F2002
2-Wire Communication Flash MCU
RET A,x
ReturnfromsubroutineandloadimmediatedatatoACC
Description
TheProgramCounterisrestoredfromthestackandtheAccumulatorloadedwiththespecified
immediatedata.Programexecutioncontinuesattherestoredaddress.
Operation
ProgramCounter←Stack
ACC←x
Affectedflag(s)
None
RETI
Returnfrominterrupt
Description
TheProgramCounterisrestoredfromthestackandtheinterruptsarere-enabledbysettingthe
EMIbit.EMIisthemasterinterruptglobalenablebit.Ifaninterruptwaspendingwhenthe
RETIinstructionisexecuted,thependingInterruptroutinewillbeprocessedbeforereturning
tothemainprogram.
Operation
ProgramCounter←Stack
EMI←1
Affectedflag(s)
None
RL [m]
RotateDataMemoryleft
Description
ThecontentsofthespecifiedDataMemoryarerotatedleftby1bitwithbit7rotatedintobit0.
Operation
[m].(i+1)←[m].i;(i=0~6)
[m].0←[m].7
Affectedflag(s)
None
RLA [m]
RotateDataMemoryleftwithresultinACC
Description
ThecontentsofthespecifiedDataMemoryarerotatedleftby1bitwithbit7rotatedintobit0.
TherotatedresultisstoredintheAccumulatorandthecontentsoftheDataMemoryremain
unchanged.
Operation
ACC.(i+1)←[m].i;(i=0~6)
ACC.0←[m].7
Affectedflag(s)
None
RLC [m]
RotateDataMemoryleftthroughCarry
Description
ThecontentsofthespecifiedDataMemoryandthecarryflagarerotatedleftby1bit.Bit7
replacestheCarrybitandtheoriginalcarryflagisrotatedintobit0.
Operation
[m].(i+1)←[m].i;(i=0~6)
[m].0←C
C←[m].7
Affectedflag(s)
C
RLCA [m]
RotateDataMemoryleftthroughCarrywithresultinACC
Description
DatainthespecifiedDataMemoryandthecarryflagarerotatedleftby1bit.Bit7replacesthe
Carrybitandtheoriginalcarryflagisrotatedintothebit0.Therotatedresultisstoredinthe
AccumulatorandthecontentsoftheDataMemoryremainunchanged.
Operation
ACC.(i+1)←[m].i;(i=0~6)
ACC.0←C
C←[m].7
Affectedflag(s)
C
RR [m]
RotateDataMemoryright
Description
ThecontentsofthespecifiedDataMemoryarerotatedrightby1bitwithbit0rotatedintobit7.
Operation
[m].i←[m].(i+1);(i=0~6)
[m].7←[m].0
Affectedflag(s)
None



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