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HT46R0042 Fiches technique(PDF) 29 Page - Holtek Semiconductor Inc |
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HT46R0042 Fiches technique(HTML) 29 Page - Holtek Semiconductor Inc |
29 / 83 page Rev. 1.00 �8 ��to�e� ��� �01� Rev. 1.00 �9 ��to�e� ��� �01� HT46R0042 Cost-Effective A/D 8-Bit OTP MCU HT46R0042 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 u u RES o� LVR �eset du�ing N�RMAL Mode ope�ation 1 u WDT time-out �eset du�ing N�RMAL Mode ope�ation 1 1 WDT time-out �eset du�ing Sleep Mode ope�ation Note: “u” stands fo� un�hanged Thefollowingtableindicatesthewayinwhichthevariouscomponentsofthemicrocontrollerare affectedafterapower-onresetoccurs. Item Condition After RESET P�og�am Counte� Reset to ze�o Inte��upts All inte��upts will �e disa�led WDT Clea� afte� �eset� WDT �egins �ounting Time�/Event Counte� Time� Counte� will �e tu�ned off P�e�ale� The Time� Counte� P�es�ale� will �e �lea�ed Input/�utput Po�ts I/� po�ts will �e set as inputs Sta�k Pointe� Sta�k Pointe� will point to the top of the sta�k Thedifferentkindsofresetsallaffecttheinternalregistersofthemicrocontrollerindifferentways. Toensurereliablecontinuationofnormalprogramexecutionafteraresetoccurs,itisimportantto knowwhatconditionthemicrocontrollerisinafteraparticularresetoccurs.Thefollowingtable describeshoweachtypeofresetaffectsthemicrocontrollerinternalregisters. Register Reset (Power On) RES Reset (Normal Operation) RES Reset (HALT) WDT Time-out (Normal Operation) WDT Time-out (HALT) P�og�am Counte� 000H 000H 000H 000H 000H IAR0 xxxx xxxx uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu MP0 xxxx xxxx uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu IAR1 xxxx xxxx uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu MP1 xxxx xxxx uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu ACC xxxx xxxx uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu PCL 0000 0000 0000 0000 0000 0000 0000 0000 uuuu uuuu TBLP xxxx xxxx uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu TBLH -xxx xxxx -uuu uuuu -uuu uuuu -uuu uuuu -uuu uuuu WDTS ---- -1 1 1 ---- -1 1 1 ---- -1 1 1 ---- -1 1 1 ---- -uuu STATUS --00 xxxx --uu uuuu --01 uuuu --1u uuuu --1 1 uuuu INTC0 -000 0000 -000 0000 -000 0000 -000 0000 -uuu uuuu TMR xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx uuuu uuuu TMRC 00-0 1000 00-0 1000 00-0 1000 00-0 1000 uu-u uuuu PA 1111 1111 1111 1111 1111 1111 1111 1111 uuuu uuuu PAC 1111 1111 1111 1111 1111 1111 1111 1111 uuuu uuuu PAWU 0000 0000 0000 0000 0000 0000 0000 0000 uuuu uuuu PAPU 0000 0000 0000 0000 0000 0000 0000 0000 uuuu uuuu PB 1111 1111 1111 1111 1111 1111 1111 1111 uuuu uuuu PBC 1111 1111 1111 1111 1111 1111 1111 1111 uuuu uuuu |
Numéro de pièce similaire - HT46R0042 |
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Description similaire - HT46R0042 |
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