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HT46R004 Fiches technique(PDF) 30 Page - Holtek Semiconductor Inc |
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HT46R004 Fiches technique(HTML) 30 Page - Holtek Semiconductor Inc |
30 / 84 page Rev. 1.30 30 �an�a�� ��� �01� Rev. 1.30 31 �an�a�� ��� �01� HT46R004 Cost-Effective A/D 8-Bit OTP MCU Reset Initial Conditions Thedifferenttypesofresetdescribedaffecttheresetflagsindifferentways.Theseflags,known asPDFandTOarelocatedinthestatusregisterandarecontrolledbyvariousmicrocontroller operations,suchastheSleepModefunctionorWatchdogTimer.Theresetflagsareshowninthe table: TO PDF RESET Conditions 0 0 Powe�-on �eset � � RES o� LVR �eset d��ing NORMAL Mode ope�ation 1 � WDT time-o�t �eset d��ing NORMAL Mode ope�ation 1 1 WDT time-o�t �eset d��ing Sleep Mode ope�ation Note: “�” stands fo� �nchanged Thefollowingtableindicatesthewayinwhichthevariouscomponentsofthemicrocontrollerare affectedafterapower-onresetoccurs. Item Condition After RESET P�og�am Co�nte� Reset to ze�o Inte���pts All inte���pts will be disabled WDT Clea� afte� �eset� WDT begins co�nting Time�/Event Co�nte� Time� Co�nte� will be t��ned off Inp�t/O�tp�t Po�ts I/O po�ts will be set as inp�ts Stack Pointe� Stack Pointe� will point to the top of the stack Thedifferentkindsofresetsallaffecttheinternalregistersofthemicrocontrollerindifferentways. Toensurereliablecontinuationofnormalprogramexecutionafteraresetoccurs,itisimportantto knowwhatconditionthemicrocontrollerisinafteraparticularresetoccurs.Thefollowingtable describeshoweachtypeofresetaffectsthemicrocontrollerinternalregisters. |
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