Datenblatt-Suchmaschine für elektronische Bauteile |
|
HT46R003B Datenblatt(PDF) 23 Page - Holtek Semiconductor Inc |
|
HT46R003B Datenblatt(HTML) 23 Page - Holtek Semiconductor Inc |
23 / 76 page Rev. 1.00 �� ��ne 1�� �01� Rev. 1.00 �3 ��ne 1�� �01� HT46R003B Cost-Effective A/D 8-bit OTP MCU HT46R003B Cost-Effective A/D 8-bit OTP MCU Ifthesystemiswokenupbyanexternalreset,thedevicewillexperienceafullsystemreset, however,ifthedeviceiswokenupbyaWDToverflow,aWatchdogTimerresetwillbeinitiated. Althoughbothofthesewake-upmethodswillinitiatearesetoperation,theactualsourceofthe wake-upcanbedeterminedbyexaminingtheTOandPDFflags.ThePDFflagisclearedbya systempower-uporexecutingtheclearWatchdogTimerinstructionsandissetwhenexecutingthe “HALT”instruction.TheTOflagissetifaWDTtime-outoccurs,andcausesawake-upthatonly resetstheProgramCounterandStackPointer,theotherflagsremainintheiroriginalstatus. PinsPA0~PA7canbesetviathePAWUregistertopermitanegativetransitiononthepintowake-up thesystem.WhenaPA0~PA7pinwake-upoccurs,theprogramwillresumeexecutionatthe instructionfollowingthe“HALT”instruction. Ifthesystemiswokenupbyaninterrupt,thentwopossiblesituationsmayoccur.Thefirstiswhere therelatedinterruptisdisabledortheinterruptisenabledbutthestackisfull,inwhichcasethe programwillresumeexecutionattheinstructionfollowingthe“HALT”instruction.Inthissituation, theinterruptwhichwoke-upthedevicewillnotbeimmediatelyserviced,butwillratherbeserviced laterwhentherelatedinterruptisfinallyenabledorwhenastacklevelbecomesfree.Theother situationiswheretherelatedinterruptisenabledandthestackisnotfull,inwhichcasetheregular interruptresponsetakesplace.IfaninterruptrequestflagissethighbeforeenteringtheSLEEP Mode,thewake-upfunctionoftherelatedinterruptwillbeignored. Nomatterwhatthesourceofthewake-upeventis,onceawake-upeventoccurs,therewillbea timedelaybeforenormalprogramexecutionresumes.Consultthetablefortherelatedtime Wake-up Source Oscillator Type HIRC, LIRC External RES tRSTD + tSST PA Port tSST Interr�pt WDT Overflow Note:1.tRSTD(resetdelaytime),tSYS(systemclock) 2.tRSTDispower-ondelay,typicaltime=50ms 3.tSST=16tSYS Wake-up Delay Time |
Ähnliche Teilenummer - HT46R003B |
|
Ähnliche Beschreibung - HT46R003B |
|
|
Link URL |
Privatsphäre und Datenschutz |
ALLDATASHEETDE.COM |
War ALLDATASHEET hilfreich? [ DONATE ] |
Über Alldatasheet | Werbung | Kontakt | Privatsphäre und Datenschutz | Linktausch | Hersteller 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 |