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HT45F4N Datasheet(PDF) 56 Page - Holtek Semiconductor Inc |
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HT45F4N Datasheet(HTML) 56 Page - Holtek Semiconductor Inc |
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56 / 170 page  Rev. 1.30 5� De�e��e� 1�� �01� Rev. 1.30 57 De�e��e� 1�� �01� HT45F4N/HT45FH4N Power Bank Flash MCU HT45F4N/HT45FH4N Power Bank Flash MCU Reset Initial Conditions Thedifferenttypesofresetdescribedaffecttheresetflagsindifferentways.Theseflags,known asPDFandTOarelocatedinthestatusregisterandarecontrolledbyvariousmicrocontroller operations,suchastheSLEEPorIDLEModefunctionorWatchdogTimer.Theresetflagsare showninthetable: TO PDF RESET Conditions 0 0 Powe�-on �eset u u LVR �eset du�ing NORMAL o� SLOW Mode ope�ation 1 u WDT ti�e-out �eset du�ing NORMAL o� SLOW Mode ope�ation 1 1 WDT ti�e-out �eset du�ing IDLE o� SLEEP Mode ope�ation Note: “u” stands fo� un�hanged Thefollowingtableindicatesthewayinwhichthevariouscomponentsofthemicrocontrollerare affectedafterapower-onresetoccurs. Item Condition After RESET P�og�a� Counte� Reset to ze�o Inte��upts All inte��upts will �e disa�led WDT Clea� afte� �eset� WDT �egins �ounting Ti�e� Modules Ti�e� Modules will �e tu�ned off Input/Output Po�ts I/O po�ts will �e setup as inputs and AN0~AN13 as A/D input pins Sta�k Pointe� Sta�k Pointe� will point to the top of the sta�k Thedifferentkindsofresetsallaffecttheinternalregistersofthemicrocontrollerindifferentways. Toensurereliablecontinuationofnormalprogramexecutionafteraresetoccurs,itisimportantto knowwhatconditionthemicrocontrollerisinafteraparticularresetoccurs.Thefollowingtable describeshoweachtypeofresetaffectseachofthemicrocontrollerinternalregisters. Register Reset (Power On) WDT Time-out (Normal Operation) LVR Reset WDT Time-out (SLEEP/IDLE) MP0 xxxx xxxx xxxx xxxx xxxx xxxx uuuu uuuu MP1 xxxx xxxx xxxx xxxx xxxx xxxx uuuu uuuu BP ---- ---0 ---- ---0 ---- ---0 ---- ---u ACC xxxx xxxx uuuu uuuu uuuu uuuu uuuu uuuu PCL 0000 0000 0000 0000 0000 0000 0000 0000 TBLP xxxx xxxx uuuu uuuu uuuu uuuu uuuu uuuu TBLH xxxx xxxx uuuu uuuu uuuu uuuu uuuu uuuu TBHP ---- xxxx ---- uuuu ---- uuuu ---- uuuu STATUS --00 xxxx --1u uuuu --uu uuuu --1 1 uuuu SMOD 110- 0010 110- 0010 110- 0010 uuu- uuuu LVDC --00 -000 --00 -000 --00 -000 --uu -uuu INTEG --00 0000 --00 0000 --00 0000 --uu uuuu INTC0 -000 0000 -000 0000 -000 0000 -uuu uuuu INTC1 0000 0000 0000 0000 0000 0000 uuuu uuuu INTC� 0000 0000 0000 0000 0000 0000 uuuu uuuu INTC3 0000 0000 0000 0000 0000 0000 uuuu uuuu MFI0 -000 -000 -000 -000 -000 -000 -uuu -uuu MFI1 --00 --00 --00 --00 --00 --00 --uu --uu MFI� --00 --00 --00 --00 --00 --00 --uu --uu MFI3 --00 --00 --00 --00 --00 --00 --uu --uu PA 1111 1111 1111 1111 1111 1111 uuuu uuuu PAC 1111 1111 1111 1111 1111 1111 uuuu uuuu |
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