HT66F0176 datasheet(32/165 Pages) HOLTEK

32 / 165 page

Rev. 1.20

��st 2�� 201�

Rev. 1.20

��st 2�� 201�

HT66F0176

A/D Flash MCU with EEPROM

HT66F0176

A/D Flash MCU with EEPROM

STATUS Register

Bit

Name

—

PDF

�C

R/W

—

R/W

POR

—

"x": �nknown

Bit7~6

Unimplemented,readas"0"

Bit5

TO:WatchdogTime-outflag

0:Afterpowerupowexecutingthe"CLRWDT"or"HALT"instruction

1:Awatchdogtime-outoccurred

Bit4

PDF:Powerdownflag

0:Afterpowerupowexecutingthe"CLRWDT"instruction

1:Byexecutingthe"HALT"instructin

Bit3

OV:Overflowflag

0:Nooverflow

1:Anoperationresultsinacarryintothehighest-orderbitbutnotacarryoutofthe

highest-orderbitorviceversa

Bit2

Z:Zeroflag

0:Theresultofanarithmeticorlogicaloperationisnotzero

1:Theresultofanarithmeticorlogicaloperationiszero

Bit1

AC:Auxiliaryflag

0:Noauxiliarycarry

1:Anoperationresultsinacarryoutofthelownibbles,inaddition,ornoborrow

fromthehighnibbleintothelownibbleinsubstraction

Bit0

C:Carryflag

0:Nocarry-out

1:Anoperationresultsinacarryduringanadditionoperationorifaborrowdoes

nottakeplaceduringasubtractionoperation

The"C"flagisalsoaffectedbyarotatethroughcarryinstruction.

HT66F0176 Datasheet(PDF) 32 Page - Holtek Semiconductor Inc

HT66F0176 Datasheet(HTML) 32 Page - Holtek Semiconductor Inc

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