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HT67F488 データシート(PDF) 32 Page - Holtek Semiconductor Inc

部品番号 HT67F488
部品情報  TinyPowerTM A/D Flash MCU with LCD & EEPROM
PDF  171 Pages
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メーカー  HOLTEK [Holtek Semiconductor Inc]
ホームページ  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT67F488 データシート(HTML) 32 Page - Holtek Semiconductor Inc

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Rev. 1.60
3�
�ove��e� ��� �016
HT67F488/HT67F489
TinyPowerTM A/D Flash MCU with LCD & EEPROM
STATUS Register
Bit
7
6
5
4
3
2
1
0
�a�e
SC
CZ
TO
PDF
OV
Z
AC
C
R/W
R/W
R/W
R
R
R/W
R/W
R/W
R/W
POR
x
x
0
0
x
x
x
x
“x” unknown
Bit7
SC:Theresultofthe“XOR”operationwhichisperformedbytheOVflagandthe
MSBoftheinstructionoperationresult.
Bit6
CZ:Thetheoperationalresultofdifferentflagsfordifferentinstructions.
ForSUB/SUBM/LSUB/LSUBMinstructions,theCZflagisequaltotheZflag.
ForSBC/SBCM/LSBC/LSBCMinstructions,theCZflagisthe“AND”operation
resultwhichisperformedbythepreviousoperationCZflagandcurrentoperationzero
flag.
Forotherinstructions,theCZflagwillnotbeaffected.
Bit5
TO:WatchdogTime-Outflag
0:Afterpoweruporexecutingthe“CLRWDT”or“HALT”instruction
1:Awatchdogtime-outoccurred.
Bit4
PDF:Powerdownflag
0:Afterpoweruporexecutingthe“CLRWDT”instruction
1:Byexecutingthe“HALT”instruction
Bit3
OV:Overflowflag
0:Nooverflow
1:Anoperationresultsinacarryintothehighest-orderbitbutnotacarryoutofthe
highest-orderbitorviceversa.
Bit2
Z:Zeroflag
0:Theresultofanarithmeticorlogicaloperationisnotzero
1:Theresultofanarithmeticorlogicaloperationiszero
Bit1
AC:Auxiliaryflag
0:Noauxiliarycarry
1:Anoperationresultsinacarryoutofthelownibblesinaddition,ornoborrow
fromthehighnibbleintothelownibbleinsubtraction
Bit0
C:Carryflag
0:Nocarry-out
1:Anoperationresultsinacarryduringanadditionoperationorifaborrowdoes
nottakeplaceduringasubtractionoperation
Cisalsoaffectedbyarotatethroughcarryinstruction.



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