 |
поискавой системы для электроныых деталей |
|
|
поискавой системы для электроныых деталей |
|
HT45F2020 датащи(PDF) 22 Page - Holtek Semiconductor Inc |
|
|
|||||||||||||||||||||||||||||
HT45F2020 датащи(HTML) 22 Page - Holtek Semiconductor Inc |
|
|
22 / 85 page  Rev. 1.00 22 April 11, 2017 Rev. 1.00 23 April 11, 2017 HT45F2020/HT45F2022 Sound Effect Generator Flash MCU HT45F2020/HT45F2022 Sound Effect Generator Flash MCU TheZ,OV,AC,andCflagsgenerallyreflectthestatusofthelatestoperations. • Cissetifanoperationresultsinacarryduringanadditionoperationorifaborrowdoesnottake placeduringasubtractionoperation;otherwiseCiscleared.Cisalsoaffectedbyarotatethrough carryinstruction. • ACissetifanoperationresultsinacarryoutofthelownibblesinaddition,ornoborrowfrom thehighnibbleintothelownibbleinsubtraction;otherwiseACiscleared. • Zissetiftheresultofanarithmeticorlogicaloperationiszero;otherwiseZiscleared. • OVissetifanoperationresultsinacarryintothehighest-orderbitbutnotacarryoutofthe highest-orderbit,orviceversa;otherwiseOViscleared. • PDFisclearedbyasystempower-uporexecutingthe“CLRWDT”instruction.PDFissetby executingthe“HALT”instruction. • TOisclearedbyasystempower-uporexecutingthe“CLRWDT”or“HALT”instruction.TOis setbyaWDTtime-out. Inaddition,onenteringaninterruptsequenceorexecutingasubroutinecall,thestatusregisterwill notbepushedontothestackautomatically.Ifthecontentsofthestatusregistersareimportantandif thesubroutinecancorruptthestatusregister,precautionsmustbetakentocorrectlysaveit. STATUS Register Bit 7 6 5 4 3 2 1 0 Name — — TO PDF OV Z AC C R/W — — R R R/W R/W R/W R/W POR — — 0 0 x x x x “x”: unknown Bit7~6 Unimplemented,readas“0” 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:anoperationresultsinacarryduringanadditionoperationorifaborrowdoesnot takeplaceduringasubtractionoperation Cisalsoaffectedbyarotatethroughcarryinstruction. |
|
ссылки URL |
| Вашему бизинису помогли Аллдатащит? [ DONATE ] |
Что такое Аллдатащит | реклама | контакт | Конфиденциальность | Ссылка на техническое описание | обмен ссыками | поиск по производителю All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
Russian ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
