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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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HT67F488 датащи(PDF) 65 Page - Holtek Semiconductor Inc |
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HT67F488 датащи(HTML) 65 Page - Holtek Semiconductor Inc |
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65 / 171 page  Rev. 1.60 65 �ove��e� ��� �016 HT67F488/HT67F489 TinyPowerTM A/D Flash MCU with LCD & EEPROM TMPC Register Bit 7 6 5 4 3 2 1 0 �a�e — — — T3CP T�CP T1CP T0CP1 T0CP0 R/W — — — R/W R/W R/W R/W R/W POR — — — 0 0 0 0 0 Bit7~5 Unimplemented,readas“0” Bit4 T3CP:TP3pincontrol 0:Disable 1:Enable Bit3 T2CP:TP2pincontrol 0:Disable 1:Enable Bit2 T1CP:TP1pincontrol 0:Disable 1:Enable Bit1 T0CP1:TP0_1pincontrol 0:Disable 1:Enable Bit0 T0CP0:TP0_0pincontrol 0:Disable 1:Enable Programming Considerations TheTMCounterRegistersandtheCapture/CompareCCRAandCCRPregisters,being10-bit,all havealowandhighbytestructure.Thehighbytescanbedirectlyaccessed,butasthelowbytes canonlybeaccessedviaaninternal8-bitbuffer,readingorwritingtotheseregisterpairsmustbe carriedoutinaspecificway.Theimportantpointtonoteisthatdatatransfertoandfromthe8-bit bufferanditsrelatedlowbyteonlytakesplacewhenawriteorreadoperationtoitscorresponding highbyteisexecuted.AstheCCRAandCCRPregistersareimplementedinthewayshowninthe followingdiagramandaccessingtheregisteriscarriedoutinaspecificwaydescribedabove,it isrecommendedtousethe“MOV”instructiontoaccesstheCCRAandCCRPlowbyteregisters, namedTMxALandTMxRPL,usingthefollowingaccessprocedures.AccessingtheCCRAor CCRPlowbyteregisterwithoutfollowingtheseaccessprocedureswillresultinunpredictable values. Data Bus 8-�it Buffe� TMxDH TMxDL TMxAH TMxAL TM Counte� Registe� (Read only) TM CCRA Registe� (Read/W�ite) TMxRPH TMxRPL TM CCRP Registe� (Read/W�ite) |
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