HT66F005 datasheet(18/109 Pages) HOLTEK

18 / 109 page

Rev. 1.30

��i� �� 01�

Rev. 1.30

��i� �� 01�

HT66F005/HT66F006

Cost-Effective A/D Flash MCU with EEPROM

HT66F005/HT66F006

Cost-Effective A/D Flash MCU with EEPROM

Flash Program Memory

TheProgramMemoryisthelocationwheretheusercodeorprogramisstored.Forthesedevices

seriestheProgramMemoryareFlashtype,whichmeansitcanbeprogrammedandre-programmed

alargenumberoftimes,allowingtheusertheconvenienceofcodemodificationonthesame

device.Byusingtheappropriateprogrammingtools,theseFlashdevicesofferuserstheflexibilityto

convenientlydebuganddeveloptheirapplicationswhilealsoofferingameansoffieldprogramming

andupdating.

Structure

TheProgramMemoryhasacapacityof0.5K×16bitsor1K×16bits.TheProgramMemoryis

addressedbytheProgramCounterandalsocontainsdata,tableinformationandinterruptentries.

Tabledata,whichcanbesetupinanylocationwithintheProgramMemory,isaddressedbya

separatetablepointerregister.

Device

Capacity

HT66F005

0.5K×16

HT66F006

1K×16

In te rr upt

Ve ct or

0004H

01 FF H

16 b it s

001C H

In te rr upt

Ve ct or

16 b it s

03 FF H

Re se t

0000H

06 $$. #

Re se t

06 $$. $

Program Memory Structure

Special Vectors

WithintheProgramMemory,certainlocationsarereservedfortheresetandinterrupts.Thelocation

000Hisreservedforusebythesedevicesresetforprograminitialisation.Afteradeviceresetis

initiated,theprogramwilljumptothislocationandbeginexecution.

Look-up Table

AnylocationwithintheProgramMemorycanbedefinedasalook-uptablewhereprogrammerscan

storefixeddata.Tousethelook-uptable,thetablepointermustfirstbesetupbyplacingtheaddress

ofthelookupdatatoberetrievedinthetablepointerregister,TBLPandTBHP.Theseregisters

definethetotaladdressofthelook-uptable.

Aftersettingupthetablepointer,thetabledatacanberetrievedfromtheProgramMemoryusing

the"TABRD[m]"or"TABRDL[m]"instructions,respectively.Whentheinstructionisexecuted,

thelowerordertablebytefromtheProgramMemorywillbetransferredtotheuserdefined

DataMemoryregister[m]asspecifiedintheinstruction.Thehigherordertabledatabytefrom

theProgramMemorywillbetransferredtotheTBLHspecialregister.Anyunusedbitsinthis

transferredhigherorderbytewillbereadas“0”.

Theaccompanyingdiagramillustratestheaddressingdataflowofthelook-uptable.

HT66F005 датащи(PDF) 18 Page - Holtek Semiconductor Inc

HT66F005 датащи(HTML) 18 Page - Holtek Semiconductor Inc

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

датащи скачать

ссылки URL