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HT48R002 数据表(PDF) 13 Page - Holtek Semiconductor Inc |
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HT48R002 数据表(HTML) 13 Page - Holtek Semiconductor Inc |
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13 / 71 page  Rev. 1.11 12 April 11, 2017 Rev. 1.11 13 April 11, 2017 HT48R002/HT48R003 Cost-Effective I/O 8-Bit OTP MCU HT48R002/HT48R003 Cost-Effective I/O 8-Bit OTP MCU Program Memory TheProgramMemoryisthelocationwheretheusercodeorprogramisstored.Thedeviceis suppliedwithOne-TimeProgrammable,OTP,memorywhereuserscanprogramtheirapplication codeintothedevice.Byusingtheappropriateprogrammingtools,OTPdevicesofferusersthe flexibilitytofreelydeveloptheirapplicationswhichmaybeusefulduringdebugorforproducts requiringfrequentupgradesorprogramchanges. Structure TheProgramMemoryhasacapacityof1k×14bits.TheProgramMemoryisaddressedbythe ProgramCounterandalsocontainsdata,tableinformationandinterruptentriesinformation.Table datawhichcanbesetinanylocationwithintheProgramMemoryisaddressedbyseparatetable pointerregisters. : U nus ed ,r ead as " 00 " De vi ce i ni ti al p ro gr am Ex te ma l In te rr up t Ti me r 0 I nt er ru pt ~~ ~~ 00 H 04 H 08 H 14 bi ts 3 FFH Program Memory Structure Special Vectors WithintheProgramMemory,certainlocationsarereservedfortheresetandinterrupts. Reset Vector Thisvectorisreservedforusebythedeviceresetforprograminitialization.Afteradeviceresetis initiated,theprogramwilljumptothislocationandbeginexecution. External interrupt vector Thisvectorisusedbytheexternalinterrupt.Iftheexternalinterruptpinonthedevicereceivesan edgetransition,theprogramwilljumptothislocationandbeginexecutioniftheexternalinterruptis enabledandthestackisnotfull.Theexternalinterruptactiveedgetransitiontype,whetherhighto low,lowtohighorbothisspecifiedintheCTRL1register. Timer/Event counter 0 interrupt vector ThisinternalvectorisusedbytheTimer/EventCounter.IfaTimer/EventCounteroverflowoccurs, theprogramwilljumptoitsrespectivelocationandbeginexecutioniftheassociatedTimer/Event Counter0interruptisenabledandthestackisnotfull. |
类似零件编号 - HT48R002 |
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类似说明 - HT48R002 |
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