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HT45F2002 Datasheet(PDF) 21 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) 21 Page - Holtek Semiconductor Inc

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HT45F2002
2-Wire Communication Flash MCU
HT45F2002
2-Wire Communication Flash MCU
CALL addr
Subroutinecall
Description
Unconditionallycallsasubroutineatthespecifiedaddress.TheProgramCounterthen
incrementsby1toobtaintheaddressofthenextinstructionwhichisthenpushedontothe
stack.Thespecifiedaddressisthenloadedandtheprogramcontinuesexecutionfromthis
newaddress.Asthisinstructionrequiresanadditionaloperation,itisatwocycleinstruction.
Operation
Stack←ProgramCounter+1
ProgramCounter←addr
Affectedflag(s)
None
CLR [m]
ClearDataMemory
Description
EachbitofthespecifiedDataMemoryisclearedto0.
Operation
[m]←00H
Affectedflag(s)
None
CLR [m].i
ClearbitofDataMemory
Description
BitiofthespecifiedDataMemoryisclearedto0.
Operation
[m].i←0
Affectedflag(s)
None
CLR WDT
ClearWatchdogTimer
Description
TheTO,PDFflagsandtheWDTareallcleared.
Operation
WDTcleared
TO←0
PDF←0
Affectedflag(s)
TO,PDF
CLR WDT1
Pre-clearWatchdogTimer
Description
TheTO,PDFflagsandtheWDTareallcleared.Notethatthisinstructionworksin
conjunctionwithCLRWDT2andmustbeexecutedalternatelywithCLRWDT2tohave
effect.RepetitivelyexecutingthisinstructionwithoutalternatelyexecutingCLRWDT2will
havenoeffect.
Operation
WDTcleared
TO←0
PDF←0
Affectedflag(s)
TO,PDF
CLR WDT2
Pre-clearWatchdogTimer
Description
TheTO,PDFflagsandtheWDTareallcleared.Notethatthisinstructionworksinconjunction
withCLRWDT1andmustbeexecutedalternatelywithCLRWDT1tohaveeffect.
RepetitivelyexecutingthisinstructionwithoutalternatelyexecutingCLRWDT1willhaveno
effect.
Operation
WDTcleared
TO←0
PDF←0
Affectedflag(s)
TO,PDF
CPL [m]
ComplementDataMemory
Description
EachbitofthespecifiedDataMemoryislogicallycomplemented(1′scomplement).Bitswhich
previouslycontaineda1arechangedto0andviceversa.
Operation
[m]←[m]
Affectedflag(s)
Z



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