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HT45R2K-C Datasheet(PDF) 39 Page - Holtek Semiconductor Inc |
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HT45R2K-C Datasheet(HTML) 39 Page - Holtek Semiconductor Inc |
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39 / 105 page  Rev. 1.40 38 �a��� 1�� �01� Rev. 1.40 39 �a��� 1�� �01� HT45R2K-C/-B/-A Dual Slope 16K/8K/4K ASSP MCU for Body Fat Scale HT45R2K-C/-B/-A Dual Slope 16K/8K/4K ASSP MCU for Body Fat Scale TO PDF RESET Conditions 0 0 Powe�-on �eset u u RES o� LVR �eset du�ing No�mal ope�ation 0 1 RES Wake-up HALT 1 u WDT time-out �eset du�ing No�mal ope�ation 1 1 WDT Wake-up HALT Note:“u”standsforunchanged. Thefollowingtableindicatesthewayinwhichthevariouscomponentsofthemicrocontrollerare affectedafterapower-onresetoccurs. Item Condition After RESET P�og�am Counte� Reset to ze�o Inte��upts All inte��upts will be disabled WDT Clea� afte� �eset� WDT begins �ounting Time�/Event Counte� Time� Counte� will be tu�ned off P�es�ale� T�e Time� Counte� P�es�ale� will be �lea�ed Input/output Po�ts I/O po�ts will be setup as inputs Sta�k Pointe� Sta�k Pointe� will point to t�e top of t�e sta�k Thedifferentkindsofresetsallaffecttheinternalregistersofthemicrocontrollerindifferentways. Toensurereliablecontinuationofnormalprogramexecutionafteraresetoccurs,itisimportantto knowwhatconditionthemicrocontrollerisinafteraparticularresetoccurs.Thefollowingtable describeshoweachtypeofresetaffectseachofthemicrocontrollerinternalregisters. Register Reset (Power On) WDT Time-out (Normal Operation) RES Reset (Normal Operation) RES Reset (HALT) WDT Time-out (HALT)* IAR0 ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- �P0 xxxx xxxx uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu IAR1 ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- �P1 xxxx xxxx uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu BP ---0 --00 ---0 --00 ---0 --00 ---0 --00 ---u --uu ACC xxxx xxxx uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu PCL ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- TBLP xxxx xxxx uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu TBLH xxxx xxxx uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu CTRL0 0000 0000 0000 0000 0000 0000 0000 0000 uuuu uuuu STATUS --00 xxxx --1u uuuu --uu uuuu --01 uuuu --1 1 uuuu INTC0 -000 0000 -000 0000 -000 0000 -000 0000 -uuu uuuu LVRC 0101 0101 0101 0101 0101 0101 0101 0101 uuuu uuuu T�R0 xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx uuuu uuuu T�R0C 0000 1000 0000 1000 0000 1000 0000 1000 uuuu uuuu T�R1H xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx uuuu uuuu T�R1L xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx uuuu uuuu T�R1C 0000 1000 0000 1000 0000 1000 0000 1000 uuuu uuuu PA 1111 1111 1111 1111 1111 1111 1111 1111 uuuu uuuu PAC 1111 1111 1111 1111 1111 1111 1111 1111 uuuu uuuu PB - - 11 1111 - - 11 1111 - - 11 1111 - - 11 1111 --uu uuuu PBC - - 11 1111 - - 11 1111 - - 11 1111 - - 11 1111 --uu uuuu |
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