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công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
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HT45F5N bảng dữ liệu(PDF) 74 Page - Holtek Semiconductor Inc |
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HT45F5N bảng dữ liệu(HTML) 74 Page - Holtek Semiconductor Inc |
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74 / 202 page  Rev. 1.00 74 �ove��e� 1�� �01� Rev. 1.00 75 �ove��e� 1�� �01� HT45F5N/HT45FH5N Power Bank ASSP Flash MCU HT45F5N/HT45FH5N Power Bank ASSP Flash MCU TM Input/Output Pin Selection SelectingtohaveaTMinput/outputorwhethertoretainitsothersharedfunctionisimplemented usingtherelevantpin-sharedfunctionselectionregisters,withthecorrespondingselectionbitsin eachpin-sharedfunctionregistercorrespondingtoaTMinput/outputpin.Configuringtheselection bitscorrectlywillsetupthecorrespondingpinasaTMinput/output.Thedetailsofthepin-shared functionselectionaredescribedinthePin-sharedFunctionsection. STM STCK STP CCR captu�e input CCR output TCK input STM Function Pin Control Block Diagram PTM PTCK PTP CCR captu�e input CCR output CCR captu�e input TCK input PTM Function Pin Control Block Diagram Programming Considerations TheTMCounterRegistersandtheCapture/CompareCCRAandCCRPregisters,allhavealow andhighbytestructure.Thehighbytescanbedirectlyaccessed,butasthelowbytescanonlybe accessedviaaninternal8-bitbuffer,readingorwritingtotheseregisterpairsmustbecarriedoutin aspecificway.Theimportantpointtonoteisthatdatatransfertoandfromthe8-bitbufferandits relatedlowbyteonlytakesplacewhenawriteorreadoperationtoitscorrespondinghighbyteis executed. AstheCCRAandCCRPregistersareimplementedinthewayshowninthefollowingdiagram andaccessingtheregisteriscarriedoutinaspecificwaydescribedabove,itisrecommendedto usethe"MOV"instructiontoaccesstheCCRAandCCRPlowbyteregisters,namedxTMALand PTMRPL,usingthefollowingaccessprocedures.AccessingtheCCRAorCCRPlowbyteregister withoutfollowingtheseaccessprocedureswillresultinunpredictablevalues. |
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