Motore di ricerca datesheet componenti elettronici
  Italian  ▼
ALLDATASHEETIT.COM

X  

HT46R004 Scheda tecnica(PDF) 64 Page - Holtek Semiconductor Inc

Il numero della parte HT46R004
Spiegazioni elettronici  Cost-Effective A/D 8-Bit OTP MCU
Download  84 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Produttore elettronici  HOLTEK [Holtek Semiconductor Inc]
Homepage  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT46R004 Scheda tecnica(HTML) 64 Page - Holtek Semiconductor Inc

Back Button HT46R004 Datasheet HTML 60Page - Holtek Semiconductor Inc HT46R004 Datasheet HTML 61Page - Holtek Semiconductor Inc HT46R004 Datasheet HTML 62Page - Holtek Semiconductor Inc HT46R004 Datasheet HTML 63Page - Holtek Semiconductor Inc HT46R004 Datasheet HTML 64Page - Holtek Semiconductor Inc HT46R004 Datasheet HTML 65Page - Holtek Semiconductor Inc HT46R004 Datasheet HTML 66Page - Holtek Semiconductor Inc HT46R004 Datasheet HTML 67Page - Holtek Semiconductor Inc HT46R004 Datasheet HTML 68Page - Holtek Semiconductor Inc Next Button
Zoom Inzoom in Zoom Outzoom out
 64 / 84 page
background image
Rev. 1.30
�4
�an�a�� ��� �01�
Rev. 1.30
�5
�an�a�� ��� �01�
HT46R004
Cost-Effective A/D 8-Bit OTP MCU
Logical and Rotate Operation
ThestandardlogicaloperationssuchasAND,OR,XORandCPLallhavetheirowninstruction
withintheHoltekmicrocontrollerinstructionset.Aswiththecaseofmostinstructionsinvolving
datamanipulation,datamustpassthroughtheAccumulatorwhichmayinvolveadditional
programmingsteps.Inalllogicaldataoperations,thezeroflagmaybesetiftheresultofthe
operationiszero.Anotherformoflogicaldatamanipulationcomesfromtherotateinstructionssuch
asRR,RL,RRCandRLCwhichprovideasimplemeansofrotatingonebitrightorleft.Different
rotateinstructionsexistdependingonprogramrequirements.Rotateinstructionsareusefulforserial
portprogrammingapplicationswheredatacanberotatedfromaninternalregisterintotheCarry
bitfromwhereitcanbeexaminedandthenecessaryserialbitsethighorlow.Anotherapplication
whichrotatedataoperationsareusedistoimplementmultiplicationanddivisioncalculations.
Branches and Control Transfer
ProgrambranchingtakestheformofeitherjumpstospecifiedlocationsusingtheJMPinstruction
ortoasubroutineusingtheCALLinstruction.Theydifferinthesensethatinthecaseofa
subroutinecall,theprogrammustreturntotheinstructionimmediatelywhenthesubroutinehas
beencarriedout.Thisisdonebyplacingareturninstruction“RET”inthesubroutinewhichwill
causetheprogramtojumpbacktotheaddressrightaftertheCALLinstruction.InthecaseofaJMP
instruction,theprogramsimplyjumpstothedesiredlocation.Thereisnorequirementtojumpback
totheoriginaljumpingoffpointasinthecaseoftheCALLinstruction.Onespecialandextremely
usefulsetofbranchinstructionsaretheconditionalbranches.Hereadecisionisfirstmaderegarding
theconditionofacertaindatamemoryorindividualbits.Dependingupontheconditions,the
programwillcontinuewiththenextinstructionorskipoveritandjumptothefollowinginstruction.
Theseinstructionsarethekeytodecisionmakingandbranchingwithintheprogramperhaps
determinedbytheconditionofcertaininputswitchesorbytheconditionofinternaldatabits.
Bit Operations
TheabilitytoprovidesinglebitoperationsonDataMemoryisanextremelyflexiblefeatureofall
Holtekmicrocontrollers.Thisfeatureisespeciallyusefulforoutputportbitprogrammingwhere
individualbitsorportpinscanbedirectlysethighorlowusingeitherthe“SET[m].i”or“CLR[m].i”
instructionsrespectively.Thefeatureremovestheneedforprogrammerstofirstreadthe8-bitoutput
port,manipulatetheinputdatatoensurethatotherbitsarenotchangedandthenoutputtheportwith
thecorrectnewdata.Thisread-modify-writeprocessistakencareofautomaticallywhenthesebit
operationinstructionsareused.
Table Read Operations
Datastorageisnormallyimplementedbyusingregisters.However,whenworkingwithlarge
amountsoffixeddata,thevolumeinvolvedoftenmakesitinconvenienttostorethefixeddatain
theDataMemory.Toovercomethisproblem,HoltekmicrocontrollersallowanareaofProgram
Memorytobesetasatablewheredatacanbedirectlystored.Asetofeasytouseinstructions
providesthemeansbywhichthisfixeddatacanbereferencedandretrievedfromtheProgram
Memory.
Other Operations
Inadditiontotheabovefunctionalinstructions,arangeofotherinstructionsalsoexistsuchas
the“HALT”instructionforPower-downoperationsandinstructionstocontroltheoperationof
theWatchdogTimerforreliableprogramoperationsunderextremeelectricorelectromagnetic
environments.Fortheirrelevantoperations,refertothefunctionalrelatedsections.


Codice articolo simile - HT46R004

Produttore elettroniciIl numero della parteScheda tecnicaSpiegazioni elettronici
logo
Holtek Semiconductor In...
HT46R0042 HOLTEK-HT46R0042 Datasheet
5Mb / 83P
   Cost-Effective A/D 8-Bit OTP MCU
More results

Descrizione simile - HT46R004

Produttore elettroniciIl numero della parteScheda tecnicaSpiegazioni elettronici
logo
Holtek Semiconductor In...
HT46R0042 HOLTEK-HT46R0042 Datasheet
5Mb / 83P
   Cost-Effective A/D 8-Bit OTP MCU
HT46R002 HOLTEK-HT46R002 Datasheet
5Mb / 83P
   Cost-Effective A/D 8-Bit OTP MCU
HT46R003B HOLTEK-HT46R003B Datasheet
5Mb / 76P
   Cost-Effective A/D 8-bit OTP MCU
HT46R46-H HOLTEK-HT46R46-H Datasheet
292Kb / 42P
   Cost-Effective A/D Type 8-Bit OTP MCU
HT46R48 HOLTEK-HT46R48 Datasheet
292Kb / 42P
   Cost-Effective A/D Type 8-Bit OTP MCU
HT46R47-H HOLTEK-HT46R47-H Datasheet
293Kb / 42P
   Cost-Effective A/D Type 8-Bit OTP MCU
HT46R48E HOLTEK-HT46R48E Datasheet
339Kb / 46P
   Cost-Effective A/D Type 8-Bit OTP MCU
HT48R002 HOLTEK-HT48R002 Datasheet
5Mb / 71P
   Cost-Effective I/O 8-Bit OTP MCU
HT46R46E HOLTEK-HT46R46E Datasheet
318Kb / 45P
   Cost-Effective A/D Type 8-Bit MCU
HT46R4A HOLTEK-HT46R4A Datasheet
468Kb / 60P
   Cost-Effective A/D Type 8-Bit MCU
More results


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


Scheda tecnica Scarica

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEETIT.COM
Lei ha avuto il aiuto da alldatasheet?  [ DONATE ] 

Di alldatasheet   |   Richest di pubblicita   |   contatti   |   Privacy Policy   |   scambio Link   |   Ricerca produttore
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com