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HT45R4U датащи(PDF) 80 Page - Holtek Semiconductor Inc |
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HT45R4U датащи(HTML) 80 Page - Holtek Semiconductor Inc |
80 / 105 page Rev. 1.10 80 �a��� 1�� �01� Rev. 1.10 81 �a��� 1�� �01� HT45R4U TinyPowerTM A/D Type e-Banking ASSP OTP MCU with LCD SL E EP0 HA LT i ns tr uc ti on is e xe cu te d f SYS of f CP U st op ID LE N= 0 f SU B of f WD To ff NO RM AL f SYS =f H ~ f H /6 4 f H o n CP U ru n f SYS o n f SU B o n ID LE 1 HA LT i ns tr uc ti on is e xe cu te d CP U st op ID LE N= 1 FS YS ON =1 f SYS o n f SU B on ID LE 0 HA LT i ns tr uc ti on is e xe cu te d CP U st op ID LE N= 1 FS YS ON =0 f SYS o ff f SU B o n SL OW f SYS =f L f L o n CP U ru n f SYS o n f SU B o n f H o ff SL E EP1 HA LT i ns tr uc ti on is e xe cu te d f SYS o ff CP U st op ID LE N= 0 f SU B o n WD T on NORMAL Mode to SLOW Mode Switching WhenrunningintheNORMALMode,whichusesthehighspeedsystemoscillator,andtherefore consumesmorepower,thesystemclockcanswitchtorunintheSLOWModebysettheHLCLKbit to"0"andsettheCKS2~CKS0bitsto"000"or"001"intheSMODregister.Thiswillthenusethe lowspeedsystemoscillatorwhichwillconsumelesspower.Usersmaydecidetodothisforcertain operationswhichdonotrequirehighperformanceandcansubsequentlyreducepowerconsumption. TheSLOWModeissourcedfromtheLXToscillatorandthereforerequirestheseoscillatorstobe stablebeforefullmodeswitchingoccurs.ThisismonitoredusingtheLTObitintheSMODregister. SLOW Mode to NORMAL Mode Switching InSLOWModethesystemusestheLXTlowspeedsystemoscillator.Toswitchbacktothe NORMALMode,wherethehighspeedsystemoscillatorisused,theHLCLKbitshouldbesetto "1"orHLCLKbitis"0",butCKS2~CKS0issetto"010","011","100","101","110"or"111". Asacertainamountoftimewillberequiredforthehighfrequencyclocktostabilise,thestatusof theHTObitischecked.Theamountoftimerequiredforhighspeedsystemoscillatorstabilization dependsuponwhichhighspeedsystemoscillatortypeisused. Note:ThisdevicenotsupportSleep0mode(WDTalwaysenabled). |
Аналогичный номер детали - HT45R4U |
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Аналогичное описание - HT45R4U |
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