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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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HT45F75 датащи(PDF) 31 Page - Holtek Semiconductor Inc |
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HT45F75 датащи(HTML) 31 Page - Holtek Semiconductor Inc |
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31 / 190 page  Rev. 1.10 30 De�e��e� 1�� �01� Rev. 1.10 31 De�e��e� 1�� �01� HT45F75 Body Fat Scale Flash MCU HT45F75 Body Fat Scale Flash MCU RAM Data Memory TheDataMemoryisavolatileareaof8-bitwideRAMinternalmemoryandisthelocationwhere temporaryinformationisstored. Dividedintothreetypes,thefirstoftheseisanareaofRAMwherespecialfunctionregistersare located.Theseregistershavefixedlocationsandarenecessaryforcorrectoperationofthedevice. Manyoftheseregisterscanbereadfromandwrittentodirectlyunderprogramcontrol,however, someremainprotectedfromusermanipulation.ThesecondareaofDataMemoryisreservedfor generalpurposeuse.Alllocationswithinthisareaarereadandwriteaccessibleunderprogram control.ThethirdareaisusedfortheSinePatternfunction.TheaddressesoftheSinePattern MemoryareaoverlapthoseintheGeneralPurposeDataMemoryarea. Structure TheDataMemoryissubdividedintoseveralsectors,allofwhichareimplementedin8-bitwide RAM.EachoftheDataMemorySectoriscategorizedintotwotypes,thespecialPurposeData MemoryandtheGeneralPurposeDataMemory.Whilethe80H~BFHofSector2isSinePattern Memory. ThestartaddressoftheDataMemoryforthedeviceistheaddress00Hwhilethestartaddressofthe GeneralPurposeDataMemory,orSinePatternMemoryistheaddress80H.TheSpecialPurpose DataMemoryregistersareaccessibleinallsectors,withtheexceptionoftheEECregisterataddress 40H,andtheFC0andFC1registersataddresses28H~29H,whichareonlyaccessibleinsector1. SwitchingbetweenthedifferentDataMemorysectorsisachievedbysettingtheMemoryPointersto thecorrectvalue. Capacity Sectors Gene�al Pu�pose: �5�×8 0: 80H~FFH �: 80H~BFH (fo� Sine Patte�n) 3: 80H~FFH Se�to� � 00H 7FH 80H FFH Spe�ial Pu�pose Data Me�o�y Gene�al Pu�pose Data Me�o�y Se�to� 0 Se�to� � Sine Patte�n Me�o�y EEC in Se�to� 1 BFH FC0~FC1 in Se�to� 1 Data Memory Structure |
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