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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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HT45F4MA 데이터시트(PDF) 42 Page - Holtek Semiconductor Inc |
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HT45F4MA 데이터시트(HTML) 42 Page - Holtek Semiconductor Inc |
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42 / 145 page  Rev. 1.20 �2 De�e��e� 1�� 201� Rev. 1.20 �3 De�e��e� 1�� 201� HT45F4MA/HT45FH4MA/HT45FH4MA-1 Power Bank Flash MCU HT45F4MA/HT45FH4MA/HT45FH4MA-1 Power Bank Flash MCU NORMAL Mode to SLOW Mode Switching WhenrunningintheNORMALMode,whichusesthehighspeedsystemoscillator,andtherefore consumesmorepower,thesystemclockcanswitchtorunintheSLOWModebysettingthe HLCLKbitto0andsettingtheCKS2~CKS0bitsto000Bor001BintheSMODregister.Thiswill thenusethelowspeedsystemoscillatorwhichwillconsumelesspower.Usersmaydecidetodothis forcertainoperationswhichdonotrequirehighperformanceandcansubsequentlyreducepower consumption. TheSLOWModeissourcedfromtheLIRCoscillatorandthereforerequiresthisoscillatortobe stablebeforefullmodeswitchingoccurs.ThisismonitoredusingtheLTObitintheSMODregister. SL OW M ode SL E EP M ode ID LE 0 M ode ID LE 1 M ode NO RM AL M od e CK S2 ~ C KS0 = 00x B & HL CL K = 0 ID LE N = 0 HA LT i ns t ru ct i on is e xe cu t ed ID LE N = 1, F SYS ON =0 HA LT i ns t ru ct io n is e xe cu t ed ID LE N = 1, F SYSO N= 1 HA LT i ns t ru ct i on is e xe cu t ed |
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