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HT69F360 データシート(PDF) 48 Page - Holtek Semiconductor Inc |
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HT69F360 データシート(HTML) 48 Page - Holtek Semiconductor Inc |
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48 / 235 page  Rev. 1.30 4� �ove��e� 1�� �01� Rev. 1.30 49 �ove��e� 1�� �01� HT69F340/HT69F350/HT69F360 TinyPowerTM I/O Flash MCU with LCD & EEPROM HT69F340/HT69F350/HT69F360 TinyPowerTM I/O Flash MCU with LCD & EEPROM RAM Data Memory TheDataMemoryisavolatileareaof8-bitwideRAMinternalmemoryandisthelocationwhere temporaryinformationisstored. Dividedintothreetypes,thefirstoftheseisanareaofRAMwherespecialfunctionregistersare located.Theseregistershavefixedlocationsandarenecessaryforcorrectoperationofthedevice. Manyoftheseregisterscanbereadfromandwrittentodirectlyunderprogramcontrol,however, someremainprotectedfromusermanipulation.ThesecondareaofDataMemoryisreservedfor generalpurposeuse.Alllocationswithinthisareaarereadandwriteaccessibleunderprogram control.ThethirdareaisreservedfortheLCDMemory.ThisspecialareaofDataMemoryis mappeddirectlytotheLCDdisplaysodatawrittenintothismemoryareawilldirectlyaffectthe displayeddata. Structure TheDataMemoryissubdividedintoseveralsectors,allofwhichareimplementedin8-bitwide RAM.EachoftheDataMemorySectorsiscategorizedintotwotypes,thespecialPurposeData MemoryandtheGeneralPurposeDataMemory.Whilethe80H~98HofHT69F340,the80H~A4H ofHT69F350or80H~B0HofHT69F360ofSector1isLCDMemory. ThestartaddressoftheDataMemoryforalldevicesistheaddress00Hwhilethestartaddress oftheGeneralPurposeDataMemoryistheaddress80H.Thespecialpurposeregisterswhichare addressedfrom00Hto7FHinDataMemoryarecommontoallsectorsandareaccessibleinall sectorsexceptEECregisterwhichcanonlybeaddressedinSector1. Device Special Purpose Data Memory LCD Display Data Memory General Purpose Data Memory Capacity Sectors Capacity Sectors Capacity Sectors HT�9F340 1��×� 0~�: 00H~7FH �5×� 1: �0H~9�H �5�×� 0: �0H~FFH �: �0H~FFH HT�9F350 1��×� 0~4: 00H~7FH 37×4 1: �0H~A4H 51�×� 0: �0H~FFH �: �0H~FFH 3: �0H~FFH 4: �0H~FFH HT�9F3�0 1��×� 0~�: 00H~7FH 49×4 1: �0H~B0H 10�4×� 0: �0H~FFH �: �0H~FFH : �: �0H~FFH Data Memory Summary |
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