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数据搜索系统，热门电子元器件搜索 |
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数据搜索系统，热门电子元器件搜索 |
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HT45F3W 数据表(PDF) 21 Page - Holtek Semiconductor Inc |
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HT45F3W 数据表(HTML) 21 Page - Holtek Semiconductor Inc |
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21 / 167 page  Rev. 1.50 �0 De�e��e� 01� �01� Rev. 1.50 �1 De�e��e� 01� �01� HT45F3W R-Type Blood Pressure Meter Flash MCU HT45F3W R-Type Blood Pressure Meter Flash MCU Flash Program Memory TheProgramMemoryisthelocationwheretheusercodeorprogramisstored.Forthisdeviceseries theProgramMemoryisFlashtype,whichmeansitcanbeprogrammedandre-programmedalarge numberoftimes,allowingtheusertheconvenienceofcodemodificationonthesamedevice.By usingtheappropriateprogrammingtools,theFlashdeviceofferuserstheflexibilitytoconveniently debuganddeveloptheirapplicationswhilealsoofferingameansoffieldprogrammingand updating. Structure TheProgramMemoryhasacapacityof16K×16bits.TheProgramMemoryisaddressedbythe ProgramCounterandalsocontainsdata,tableinformationandinterruptentries.Tabledata,which canbesetupinanylocationwithintheProgramMemory,isaddressedbyaseparatetablepointer register. Initialization Ve�to� Exte�nal Inte��upt 0 Ve�to� 000H 004H 008H Multi fun�tion inte��upt 0 Ve�to� 00CH 010H 014H 018H Multi fun�tion inte��upt 1 Ve�to� Multi fun�tion inte��upt � Ve�to� ADC Inte��upt Ve�to� 100H 0�0H 01CH Multi fun�tion inte��upt 3 Ve�to� Multi fun�tion inte��upt 4 Ve�to� Look-up Ta�le (�5� Wo�ds) Look-up Ta�le (�5� Wo�ds) 3FFFH 0FFH 3EFFH 3F00H 1� �its Program Memory Structure Special Vectors WithintheProgramMemory,certainlocationsarereservedfortheresetandinterrupts.Thelocation 000Hisreservedforusebythedeviceresetforprograminitialisation.Afteradeviceresetis initiated,theprogramwilljumptothislocationandbeginexecution. Look-up Table AnylocationwithintheProgramMemorycanbedefinedasalook-uptablewhereprogrammerscan storefixeddata.Tousethelook-uptable,thetablepointermustfirstbesetupbyplacingtheaddress ofthelookupdatatoberetrievedinthetablepointerregister,TBLPandTBHP.Theseregisters definethetotaladdressofthelook-uptable. |
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