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HT66F60 Datasheet(PDF) 74 Page - Holtek Semiconductor Inc |
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HT66F60 Datasheet(HTML) 74 Page - Holtek Semiconductor Inc |
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74 / 298 page  Rev. 1.90 74 �e���a�� 18� �01� Rev. 1.90 75 �e���a�� 18� �01� HT66F20/HT66F30/HT66F40/HT66F50/HT66F60 HT66FU30/HT66FU40/HT66FU50/HT66FU60 Enhanced A/D Flash Type 8-Bit MCU with EEPROM HT66F20/HT66F30/HT66F40/HT66F50/HT66F60 HT66FU30/HT66FU40/HT66FU50/HT66FU60 Enhanced A/D Flash Type 8-Bit MCU with EEPROM Reset Initial Conditions Thedifferenttypesofresetdescribedaffecttheresetflagsindifferentways.Theseflags,known asPDFandTOarelocatedinthestatusregisterandarecontrolledbyvariousmicrocontroller operations,suchastheSLEEPorIDLEModefunctionorWatchdogTimer.Theresetflagsare showninthetable: TO PDF RESET Conditions 0 0 Powe�-on �eset � � RES o� LVR �eset d��ing NORMAL o� SLOW Mode ope�ation 1 � WDT time-o�t �eset d��ing NORMAL o� SLOW Mode ope�ation 1 1 WDT time-o�t �eset d��ing IDLE o� SLEEP Mode ope�ation “�” 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 �e disa�led WDT Clea� afte� �eset� WDT �egins co�nting Time�/Event Co�nte� Time� Co�nte� will �e t��ned off Inp�t/O�tp�t Po�ts I/O po�ts will �e set�p as inp�ts� and AN0~AN11 in as A/D inp�t pin Stack Pointe� Stack Pointe� will point to the top of the stack Thedifferentkindsofresetsallaffecttheinternalregistersofthemicrocontrollerindifferentways. Toensurereliablecontinuationofnormalprogramexecutionafteraresetoccurs,itisimportantto knowwhatconditionthemicrocontrollerisinafteraparticularresetoccurs.Thefollowingtable describeshoweachtypeofresetaffectseachofthemicrocontrollerinternalregisters.Notethatwhere morethanonepackagetypeexiststhetablewillreflectthesituationforthelargerpackagetype. HT66F20 Register Reset (Power-on) RESorLVRReset WDT Time-out (Normal Operation) WDT Time-out (IDLE) MP0 1xxx xxxx 1xxx xxxx 1xxx xxxx 1 ��� ���� MP1 1xxx xxxx 1xxx xxxx 1xxx xxxx 1 ��� ���� BP - - - - - - -0 - - - - - - -0 - - - - - - -0 - - - - - - -� ACC xxxx xxxx ���� ���� ���� ���� ���� ���� PCL 0000 0000 0000 0000 0000 0000 0000 0000 TBLP xxxx xxxx ���� ���� ���� ���� ���� ���� TBLH - - xx xxxx - - �� ���� - - �� ���� - - �� ���� TBHP - - - - - -xx - - - - - -�� - - - - - -�� - - - - - - �� STATUS - -00 xxxx - - �� ���� - - 1� ���� - - 11 ���� SMOD 0 00 0 0 011 0 00 0 0 011 0 00 0 0 011 ���� ���� LVDC - - 00 - 000 - - 00 - 000 - - 00 - 000 - - �� - ��� INTEG - - - - 0000 - - - - 0000 - - - - 0000 - - - - ���� WDTC 0111 1010 0111 1010 0111 1010 ���� ���� TBC 0011 0111 0011 0111 0011 0111 ���� ���� INTC0 - 000 0 000 - 000 0 000 - 000 0 000 - ��� � ��� INTC1 0000 0000 0000 0000 0000 0000 ���� ���� INTC� 0000 0000 0000 0000 0000 0000 ���� ���� M�I0 - -00 - -00 - -00 - -00 - -00 - -00 - - �� - - �� |
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