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数据搜索系统，热门电子元器件搜索 |
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HT66F4530 数据表(PDF) 38 Page - Holtek Semiconductor Inc |
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HT66F4530 数据表(HTML) 38 Page - Holtek Semiconductor Inc |
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38 / 224 page  Rev. 1.00 38 De�e��e� �1� �01� Rev. 1.00 39 De�e��e� �1� �01� HT66F4530/HT66F4540/HT66F4550 A/D Flash MCU with Dual Operational Amplifiers HT66F4530/HT66F4540/HT66F4550 A/D Flash MCU with Dual Operational Amplifiers Data Memory TheDataMemoryisavolatileareaof8-bitwideRAMinternalmemoryandisthelocationwhere temporaryinformationisstored. Categorizedintotwotypes,thefirstoftheseisanareaofRAMwherespecialfunctionregistersare located.Theseregistershavefixedlocationsandarenecessaryforcorrectoperationofthesedevices. Manyoftheseregisterscanbereadfromandwrittentodirectlyunderprogramcontrol,however, someremainprotectedfromusermanipulation.ThesecondareaofDataMemoryisreservedfor generalpurposeuse.Alllocationswithinthisareaarereadandwriteaccessibleunderprogram control. SwitchingbetweenthedifferentDataMemorysectorsisachievedbyproperlysettingtheMemory Pointerstocorrectvalue. Structure TheDataMemoryissubdividedintoseveralsectors,allofwhichareimplementedin8-bitwide RAM.EachoftheDataMemorySectoriscategorizedintotwotypes,thespecialPurposeData MemoryandtheGeneralPurposeDataMemory.TheaddressrangeoftheSpecialPurposeData Memoryforthesedevicesisfrom00Hto7FHwhiletheGeneralPurposeDataMemoryaddress rangeisfrom80HtoFFH. Device Special Purpose Data Memory General Purpose Data Memory Located Sectors Capacity Sector: Address HT��F4530 0: 00H~7FH 1: 40H (EEC) 1�8×8 0: 80H~FFH HT��F4540 0: 00H~7FH 1: 40H (EEC) �5�×8 0: 80H~FFH 1: 80H~FFH HT��F4550 0: 00H~7FH 1: 40H (EEC) 384×8 0: 80H~FFH 1: 80H~FFH �: 80H~FFH Se�to� N Se�to� 1 00H Se�to� 0 7FH 80H FFH Spe�ial Pu�pose Data Me�o�y (Se�to� 0 ~ Se�to� 1) Gene�al Pu�pose Data Me�o�y (Se�to� 0 ~ Se�to� N) 40H Note: N=0 fo� HT��F4530; N=1 fo� HT��F4540; N=� fo� HT��F4550. Data Memory Structure |
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