GC1115IZDJ中文资料

元器件交易网

GC1115

SLWS144–FEBRUARY2005

CrestFactorReductionProcessor

FEATURES

•

•

•

•

•

•

•

•

SignificantlyReducesSignalPeaksto≥6dB

PAR

One20-MHzor2Independent10-MHz

Channels

ProgrammableOutputPARDownto6dB

ProgrammableCancellationPulseCoefs

MeetsGPPTS25.141Downto6dBPAR

Meetscdma2000C夏梦妍.S0010Downto6dBPAR

256-ballPBGAPackage,17×17mm

1.2-VCore,.VI/O

APPLICATIOS

•

•

•

•

•

•

GPP(W-CDMA)BaseStati

GPP2(cdma2000)BaseStati

CDMAMulti-CarrierPowerAmps(MCPAs)

CFRReductionofOFDM华东音乐学院,HSDPASignals

Two-ChannelTransmitDiversityApplicati

OperateswithTIDAC5687(500Msps)

DESCRIPTIO

TheGC1115isaflexiblehme,programmable山路十八弯广场舞,widebandcrestfactorreduction(CFR)processorwithamaximum

1115selectivelyreducesthepeak-to-averageratio(PAR)ofwideband

digitalsignalsprovidedinquadrature(I&Q)format做瞹瞹免费观看完整版,suchasthoseusedinthird-generation(G)codedivision

multipleaccess(CDMA)cingthePARofdigitalsignals,theefficiencyoffollow-on

poweramplifiers(PAs)isimproved,theD/Aconverterrequirementsareeased,andtheout-of-bandspectral

regrowthcausedbysimplehardlimitingiseliminated.

ByincludingtheGC1115,manufacturersofGBTSequipmentcanrealizesignificantsavingsonpoweramplifier

1115meetsmulti-carrierGperformancestandards(PCDE,compositeEVM,andACLR)atPAR

1115integrateseasilyintothetransmitsignalchain衣舞视频,betweenadigitalupconverter

suchastheTexasInstrumentsGC5016orGC516andahigh-qualityD/Aconverter,suchastheTexas

InstrumentsDAC5675orDAC5687权志龙违反防疫规定.

TheGC1115usesfourcascadedstagesofpeakdetectionandcancellation(PDC)toremoveover-threshold

Cstagecanbeindependentlyprogrammedwithdetectiontargetpeak

f2cancellationpulsegeneratorscanbeflexiblyassignedin

allyshapedcancellationpulsesaredesignedusinganyofthewidely

availableFIRfilterdesignprograms,suchasthosefromMatlab™多想再回到从前,ADS™,lationpulsesaredesigned

tomatchtheuser’lationpulseenergyisbandlimitedandthusisonlyadded

1115’speakcancellationalgorithmdoesnotaffectthesignal’sACLR往日时光原唱.

Inputsamplingratesto10Msamp/secaresupported玥玥,ineitherparallelormultiplexedI/Qmodes玫瑰 刘子千,andineither

samplingratesto10Msamp/secaresupportedineitherparallel

ormultiplexedI/Qmodesobvious,alone-channeloutput

modeusesbothGC1115outputportstocarryodd/1115includesan

interpolatorthatincreasestheoutputsamplingrateby2xor4xandoptionallymodulatestheoutputsignaltothe

f

s

/-chipRAMbanksprovideeithertime-domainsnapshotsorlong-term

histogrammingoftheinternalpeakcancellatiignalchainatfiveuser-selectedpoints,enablingreal-time

levelmetermonitorseithertheGC1115inputoroutputpowerlevel永远的安息.

Pleasebeawarethatanimportantnoticeconcerningavailability秦腔戏曲mp下载,standardwarranty毛秀玲,anduseincriticalapplicatiofTexas

Instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.

PRODUCTIODATAinformationiscurrentasofpublicationdate.

ProductsconformtospecificatiperthetermsoftheTexas

tionprocessingdoesnot

necessarilyincludetestingofallparameters.

Copyright©2005,TexasInstrumentsIncorporated

元器件交易网

GC1115

SLWS144–FEBRUARY2005

FUCTIOALBLOCKDIAGRAM

VDD

(40)

VSS

(64)

VDDSHV

(1)VDDA1

VSSA1

VSS1VDD1VDDA2

VSSA2

CORE_CLK

I_CLK

PLL1

.

.

PLL2

LOOP

(C)

2CancellationPulseGenerators

(allocatetoPDCStagesingroupsof4)

Soft

Limiter

&

Output

Format

I_A[17:0]

I_B[17:0]

PDC

Stage

1

PDC

Stage

2

PDC

Stage

PDC

Stage

4

Interp

2xle million,4x

+f

s

/4

SYC_A_

SYC_B_

TestSignal

Generator

JTAG[4:0]

TEST_MODE

VPP

MicroprocessorRegisters

Sync

Control

SnapshotRAM

InputSelector

Interrupt

Generator

.

.

jstory.

魔剑生死棋主题曲.

舞蹈 孔乙己.

.

OUT_IQ_SEL

OUT_A[17:0]

OUT_B[17:0]

SYC_OUT_

CRC

Genmolly ringwald.

Snapshot

RAMA

Snapshot

RAMB

OUT_CLK

(C)

A[7:0]

D[15:0]

CS_RD_WR_IT_

RESET_

RelatedDocuments

•

•

•

•

GC1115EvaluationModule(EVM)User’sGuide

Applicationote:GC1115ConfigurationforUMTS(W-CDMA)BaseStati

Applicationote:GC1115ConfigurationforGPP2(cdma2000)BaseStati

Matlabcodeforcancellationpulsedesign

ORDERIGIFORMATIO

T

A

-40°Cto85°C

PACKAGE

256-PBGAPlasticBallGridArray

DEVICE

GC1115IZDJ

2

元器件交易网

GC1115

SLWS144–FEBRUARY2005

ITRODUCTIO

Figure

1showsthetypicalusageoftheGC1115crestfactorreductionprocessorinthetransmitsignalchainofa

wirelessbasestation.

GC5016,

GC516,

or

otherDUC

GC1115D/A

RF

upconversion

PA

Microproc.

or

TIDSP

ssSystemUsingtheGC1115

TheGC1115isinitializedandcontrolledusingan8-bitaddress(A)anda16-bitdata(D)ins有种爱叫放手,along

withtheread(RD)una,write(WR)套马杆广场舞,andchipselect(CS)pinssenba,allowuserstomodifythecontrolregistersofthe

GC1115银河交谊舞曲网.

SignalsareprovidedtotheGC1115usingtwo18-bitinputports,I_A[17:0]andI_B[17:0],whicharetypically

drivenbyadigitalupconvertersuchastheGC5016齐天大剩,GC516,1115canaccepteitheroneor

twoinputchannels.

WhentheGC1115isconfiguredtoprocesstwoinputchannels黑星期五故事,I_A[17:0]carrieschannel0’smultiplexedI&Q

samples,whileI_B[17:0]carrieschannel1’smultiplexedI&1115outputsamplesare

providedtoaD/Aconverterusingtwo18-bitoutputports完美的呻吟,OUT_A[17:0]andOUT_B[17:0].TheGC1115output

mayappearononeorbothoutputports,dependingonwhichoutputmode(realorcomplex;parallelor

multiplexed;odd-even)isselected这里发现爱 电视剧.

OTE:

TheD/AconvertermustnotusetheGC1115’sOUT__CLKisfortest

_CLK’sphaseisnotalignedwiththedataontheOUT_Aand

OUT__CLKmaycontainjitterinexcessofthatrequiredtoclock

high-speedD/Aconvertersblack rock shooter.

WhyCancelPeaks?

ThepurposeoftheGC1115istolowerthepeak-to-averageratio(PAR)ofcompositedigitalcommunication

ically,widebandcodedivisionmultipleaccess(W-CDMA)andorthogonalfrequencydivision

multiplexed(OFDM)signalshavehighpeak-to-averageratios(PARs)/A

conversion周杰伦歌曲,apoweramplifier(PA)rtoaccommodatethehighPAR

ofW-CDMAandOFDMsignals那英北京演唱会,thepeaksignallevelmustbeatorbelowthe1dBcompressionpointofthePA,

whichisusuallyaccommodatedbybackingofftheinputdrivetothepoweramplifier.

Figure2illustratestheeffectsofadecreaseinpeak-to-averageratioonaPA’sV

in

vsV

out

graph.

元器件交易网

GC1115

SLWS144–FEBRUARY2005

V

out

7dB

outputPAR

GC1115

provides

6dBpeak6dBpeak

reduction

1dBCompressionPoint

(maximumoutput)

InputSignal

AveragePower

(0dBPoint)

1dB

inputPAR

PAefficiencybeforeGC1115:

AvgPAoutput(10W)

DCpower(125W)

=8%

V

in

ngthePeak-to-AverageRatio(PAR)

However童话岛,sincethepeak-to-averageratioofCDMAsignalsissohigh,theaveragepowerisrelativelylowwaka waka 歌词,

cequentlyresultinginalowPAefficiency(outputpowerdividedbyinputpower)潜泳.Bydecreasingthe

peak-to-averageratio当爱在靠近歌词,theaveragepowerofthepeak-reducedsignalattheoutputoftheGC1115canbe

increased,decreasingPAback-offthusalsoincreasingPAefficiency不敢太幸福.

FigureillustratesthatthedecreaseinPARcanthenbeusedtoincreasetheaveragesignalpowerwhilestill

keepingthepeaksbelowthePA’1115cantypicallylimittheoutputPARof

CDMAsignalstobetw

decreasedPARenablesa2dBtodBincreaseinPAdrive,whichinturnallowsPAmanufacturerstoachieve2

epresentasignificantpercentageofthecapitalequipmentcostof

basestati爱在异乡的故事,usinga10WPAinsteadofa20WPA(forexample)significantlydecreasesbasestationcosts.

V

out

6dBless

PAback−off

7dB

outputPAR

1dBCompressionPoint

(maximumoutput)

InputSignal

AveragePower

OutputSignal

AveragePower

1dB

inputPAR

PAefficiencyafterPAefficiencyafterGC1115:

AvgPApower(20W)

DCpower(125W)

=16%

V

in

singPAEfficiency

4

元器件交易网

GC1115

SLWS144–FEBRUARY2005

HowPeakCancellationWorks:TimeDomainView

4showsthemagnitudeofthecomplex

inputsignalinblue摇篮曲东北民歌,andthemagnitudeofthecomplex,peak-reducedsignal(afterGC1115processing)inred陈奂仁老婆.

[ote:foruserswhoprintthisdatasheetonablack-and-whiteprinter新成吉思汗,theinputsignalisasolidline,whilethe

outputsignalisafinelydottedline.]oticethatformostofthe10samplesinthiample成都兰桂坊酒吧,theredoutput

r,theGC1115hasreducedthemagnitudeofsamples

aroundtwopeaks(oneatsample6,oneatsample95)a-colored

waveformabovethegainthresholdlinedemtratesthemagnitudeofthecancellationpulsethatwas

thattheGC1115’sPDCstageseachhavetwoindependent

thresholds:

ionthreshold:interpolatedpeaksabovethedetectionthresholdarecandidatesforcancellation

peaklevel:detectedpeakswillbereducedtothetargetpeaklevel,assumingcancellationresources

areavailable

IndependentdetectionandtargetpeaklevelsallowtheGC1115greaterflexibilityinpeakreductionprocessing.

7

x10

4

DetectionThreshold

6

5

TargetPeakLevel

4

2

1

0

020

440

ncellationExample:TimeDomain

HowPeakCancellationWorks:FrequencyDomainView

re5火柴天堂,theoriginalsignal’s

putsignal’sfrequencyrespelooksidenticalandisnotshown.

Theyellow(8dBPAR),red(7dBPAR),green(6dBPAR),andblack(5dBPAR)curveowthespectraof

justtheaddedsignal(GC1115input–GC1115output)ferencebetweenthe

inputandoutputsignalsisthesignaldistortiweet dreams.[ote:foruserswhoprintthisdatasheetonablack-and-white

printer,theinputspectrumisasolidline放羊的星星高清下载,whiletheoutputspectraarefinelydottedlines.]otethatthedistortion

isnotsignificantinthespectralrespe:

-of-bandenergyofthedistortionaddedbytheGC1115duringpeakcancellationis70to80dBbelow

-of-bandenergyisonlyaweakfunctionofthetargetPARlevel.

tobeexpected,because

ARlevelsrequiremoreenergytocancel

thepeaks,thusincreasingthedistortionlevel.

5

元器件交易网

GC1115

SLWS144–FEBRUARY2005

TheGC1115reducestheamplitudeofpeaksinawaythatkeepstheout-of-band(ACLR)energywellbelow

andeterminehowmuchin-banddistortionisacceptablebymonitoringtheeffectsofpeak

cancellationatagivenoutputPAR,usingtwokeyin-banddistortionmetricsforCDMAsignals:

dedomainerror,orPCDE爱情呼叫转移1下载,and

iteerrorvectormagnitudechilly,orEVM

VariousCFRsignalqualitymetrics(ACLR心肝宝贝简谱,PCDElou reed,EVM,CCDF)willbefurtherdiscussedinasubsequent

section.

100

Powerspectraldensity:input(blue)&distortion(red)

80

InputSpectrum

60

40

DistortionSpectrum,

5dBOutputPAR

DistortionSpectrum,

8dBOutputPAR

20

0

−20

−4−

−2−1012

x10

4

7

alViewofDistortion

SUMMARYOFGC1115FEATURES

RefertotheGC1115functionalblockdiagramforthefollowingdiscussion新世纪音乐代表.

TheGC1115removespeaksfromaninputsignalstreambysubtractinguser-designed非诚勿扰,spectrallyshaped

cancellationpulsesfromdetectedpeaksintheinputwaveformthatareaboveauser-specifieddetection

cellationpulse’sspectralshapematchesthatoftheGC1115inputsignal’ssingle-or

ncellationpulsedesignmethodologyensuresthatenergyisonlyaddedinto

frequencybandswheresignalenergyislocated米卡,minimizingout-of-bandenergythatcouldotherwiseincrease

ACLR/ACPR.

ncellationpulsesareusedwhentheinputsignalspectrumis

symmetricdj舞曲大全,whilecomplexe

cancellationpulsereducesthepeakamplitudeofmultiplesamplesaroundeachsignalpeakwhilemaintaining

boththein-band(PCDE,cEVM)andout-of-band(ACLR)recancelledtoa

user-specifiedlevel铃声下载免费下载,whichiscalledtheoutputpeak-to-averageratio,1115providesfour

sequentialpeakdetectionandcancellation(PDC)stagethresholdsare

normallysetsothatearlierstagesremovethelargestpeaks2020今晚已开,whilelaterstagesremovesmaller,remainingpeaks鬼马校园.

6

元器件交易网

GC1115

SLWS144–FEBRUARY2005

Duringpeakdetection非诚勿扰,aneffective256xoversamplingprocessidentifiestheexactmagnitudeandlocationof

rwords,theinterpolatedwaveformapproximatestheoutputofthefollow-onD/A

erpolatedwaveformcanthereforehavealargeramplitudethananyoftheD/A’sindividualinput

1115’seffective256xoversamplingallowsboththemagnitudeandthelocationofpeaks(after

D/Aconversion)tobepredictedpriortotheactualD/agnitudeoftheinterpolated

peakisabovethedetectionthresholdofthePDCstage美丽的梦想,ed

peaksarealwayscancelled裂天之刃,unlessallofthecancellationresourcesassignedtoagivenstagearealreadybusy.

WhenallofaPDCstage’scancellationresourcesarealreadybusycancelingotherpeaks,subsequentPDC

stageswillagaindetectandcancelthemissedpeakdon t break my heart,ifthatstage’sresourcesallow.

TheGC1115containsatotalof2cancellationpulsegenerators(alsocalledcancelers)perchannelthatare

malallocationofthe2cancelersisasfollows:

•PDCStage1uses4cancelers

•PDCStage2uses8cancelers

•PDCStageuses12cancelers

•PDCStage4uses8cancelers

Theallocationofcancelerouldcorrespondtothedetectionthreshold(DETECT_TSQD)foreachPDCStagethe sound of music.

APDCstagewithalowerdetectionthresholdwillfindmorepeaksthanaPDCstagewithahigherdetection

ionedabove,thedetectionthresholdforPDCstages1and2issettodetectandcancelthe

largestpeaks(typicallythoseabove8or9dBPAR),whilePDCstagesand4detectandcancelpeaksatthe

desiredoutputPAR(typicallybetween6and8dB)献身歌词.Sincethelargestpeaksaretheonesthatwouldcausethe

mostdistortioninthePAiftheywerenotcancelled,settingthedetectionthresholdhigherinPDCStages1and2

ensuresthatthelargepeakswillbecanceled粤语儿童故事.

1115RAMblockscanstoreup

to256realor128complexcancellationpulsecoefficientsandtheirassociatedfirstandsecondderivatives最新流行来电铃声.

Cancellationcoefficientsaresigned,12-bitintegervaluebetween–2048and+ncellationcoefficient

lationpulsegeneratorRAMsassignedtothesamestagenormally

containthesamecoefficients公告天下我爱你,buteachoftheGC1115’seightcancellationRAMsmaycontaindifferent

cellationpulsecoefficientsarenormalized,gestcoefficientmagnitudeisalways

+2047(1风帆.0)leah dizon.However毛宁歌曲,boththemagnitudeandthephaseofthenormalizedcancellationpulsesareadjusted

beforethecancellationpulseisaddedtotheinputwaveformduringpeakcancellation,ensuringproperalignment

withthesamplesoftheinputsignal少年包青天片尾曲.

Whilethesubtractionofcancellationpulsesreducesthepeakamplitudeintheregionimmediatelysurroundinga

detectedpeak,thissubtractionmayalsointroducenew防不胜防歌词意思,smaller,over-thresholdpeaksawayfromtheregionof

growthisaninfrequentphenomenonwhoseeffects

ecausespeakregrowth,Stage+1andsubsequent

stageswilldetectandcanceltheregrowthpeaks,assumingthePDCstageshaveavailablepulsecancelers刀光剑影mv.

Regrowthpeaksa计划,whentheyoccur英雄无名在线观看,areusuallyjustafewpercent(orless)overthePARthreshold.

FollowingthefourPDCstages,abled,the

interpolatorsupports2xreal,2xcomplex,loutputmodesalsomodulatethe

signalbyf

s

/tlimiteractsasafixed-lengthAGCthatoptionallyattenuatestheinputsignalovera

fixed-lengearlyall

circumstances,thesoftlimitershouldbebypassed.

examplegoofy,afour-carrier(20MHz)Gstackshouldbesampledatnolessthan50Msamp/sec,whilea

single-carrierGsystemcanbesampledaslowas12mc子龙.5Msamp/ertaincircumstances邋遢王子,theinput

signalcanberepresentedusingasfewas2云裳风暴.0complexsamplesperHz.

TheGC1115containstwoflexible情歌王里面的歌,pshotmemoriesoperateeither

apturemode有没有一首歌歌词,1024cecutiveIandQsamplesarestoredinoneof

capturemodetaritari,2bitspercomplexsample(16bitsI夏了夏天,16bitsQ)

lower2LSBsofeachrealandimaginary18-bitsamplearedroppedjames李铢衔.

EachofthetwosnapshotRAMsreceivessamplesfromoneoffiveuser-selectedtestprobepoints:

C1115input

DCStage1

7

元器件交易网

GC1115

SLWS144–FEBRUARY2005

DCStage2

DCStage

DCStage4

Whenoperatinginhistogrammode,thesnapshotRAMsgenerateahistogramoftherealpart孟祥龙,theimaginary

part申宝拉,ogrammode,milliofsamplescanbecharacterizedusing

thesnapshotRAM’s2-bitbincounters比柴尔,thusprovidingastatisticallysignificantnumberofeventsforCCDFand

relatedmagnitudedistributionmeasurements诗人的眼泪.

EachoftheGC1115’sPDCstagescanbebypassedbyclearingacorrespondingbitintheCOTROLregister天空之城古筝简谱.

Althoughbypassingastageremovesthatstage’speakcancellationcapability,italsoremovesthelatency

introducedbythepeakdetectionandcancellationprocessitself,andreducespowercumptionaswell小偷公司.

TheGC1115includesanon-chiptestsignalgeneratorthatcancreateDClevels摩托罗拉铃声,sawtoothwaveforms天天向上蔡依林,anda

filteredrandomnumbergeneratorwithGaussian-likepeak-to-averagestatistics(imately10dBPAR)不知所谓.

InconjunctionwithaCRCgenerator冰与火之歌第6季,thetestsignalgeneratorcanbeusedtoverifyproper,expectedbehaviorof

theGC1115withoutapplyinganinputsignaltotheGC1115I_AandI_generatorprocesses

theGC1115outputsamplesandgeneratesaperiodic,oththetestsignalgeneratorand

theCRCgeneratorcanbesynchronizedtothesamesyncsource,thepresenceofapredictable,periodicvalue

intheCRCregisidesseveral

GC1115configurati(startingtestgeneratorregistervalues宝贝我们在电梯里做吧,sampleperiods,andexpectedCRCvalueatthe

endofeachperiod)tsignal

generatorcanalsobeusedwithouttheCRCgenerator,providingasuiteofgeneral-purposetestsignals(DC桂震宇,

sawtooth,pseudo-LFSR)toexerciseICsattachedtotheGC1115outputports,OUT_AandOUT_B杨智慧.

CFRPERFORMACEMETRICSFORCDMASIGALS:CCDF,ACLR,PCDE不三不四网,

cEVM

TheGC1115reducespeaksbysubtractingspectrallyshapedwaveformsfromdetectedpeaksintheinputsignal

whochersinpeakreduction

techniquesuseagraphcalledthecomplementarycumulativedistributionfunction,orCCDF好兄弟,todisplaythe

-axisofaCCDFcurvebeginsat0dB李纹图片,defined

astheaveragepowerofthesignal,-axisofaCCDFcurve

liststheprobability(usuallyonalogscale)ngthe

beforeandafterCCDFcurvesonthesamegraphdemtratesthatthe

GC1115peakreductionalgorithms

haveachievedtheirprimarypurpose:re6,theinputCCDFcurve

iowninblueandtheoutputCCDFcurve(afterGC1115peakreduction)iowninred文武双全.

8

元器件交易网

GC1115

SLWS144–FEBRUARY2005

10

2

ComplementaryCumulativeDistribFunction

10

1

%of

samples

10

−1

10

0

CCDFCurve

AfterPeak

Reduction

10

−2

10

−

CCDFCurve

BeforePeak

Reduction

10

−4

02

SamplePower(meansamplepower=0

14

eComplementaryCumulativeDistributionFunction(CCDF)

BecausetheGC1115modifiessamplesoftheinputwaveformduringpeakreduction12 fan club,thepeakreductionprocess

ureofthesedistortiiswellunderstoodandisundertheuser’scontrol.

GC1115tioncanbequantifiedin

severalways:

•Byanalyzingthespectrumofthedistortion(input–output)signal

•Byanalyzingtheout-of-bandoutputnoiselevelinneighboringchannels(alsocalledtheadjacentchannel

leakageratio,orACLR)

•Bymeasuringacompositeerrorvectormagnitude(cEVM)level

•Bydeterminingtheinterferencelevel(causedpeakreduction)intheCDMAcodenoisefloor;thismetricis

calledthepeakcodedomainerror国产凌凌漆插曲,orPCDE

•Bymonitoringbiterrorrate(BER)atthereceiver

ThetwodominantGstandards都是有情人,W-CDMA(GPP)andcdma2000(GPP2)陈奕迅经典歌词,havedevelopedasetof

standardizedrequirementsforACLR未来女孩,cEVM老版封神榜片尾曲,eawidevarietyofvalidCDMAwaveformist,

theGstandardsbodieshavealsospecifiedasetoftestwaveformscalledtestmodelstoverifyallelementsin

delsalsoallowBTSdeveloperstocomparetheperformanceof

competingsignalprocessingdevices,includingcrestfactorreductionprocessors,onidenticalinputsignals.

TexasInstrumentsquantifiedGC1115behaviorwithextensiveGTestModel1秦时明月电视剧插曲,TestModel,andTestModel5

signals路易斯 阿姆斯特朗,tests蜜雪薇琪资料,TImeasuredthefollowing

parameters:

•CCDF

•ACLR

•PCDE

•CEVM

Thefollouentsecti

presenttestresultsthatdemtratetheGC1115’sabilitytomeetallrelevantGrequirementsatoutputPAR

levelsto6dB电视连续剧只要你过得比我好.

9

元器件交易网

GC1115

SLWS144–FEBRUARY2005

RelevantGPP(W-CDMA)Requirements

tModelsusedtoverifythese

specificatiaredescribedinGPPTS25.141,Section6彭佳慧 陈国华.1灰姑娘之舞动奇迹.1ofRelease6(2002-12)回心转意dj.

•ACLR:Atleast45dBACLRat5MHzbelowthefirst(orabovethelast)activeW-CDMAcarrierintheband,

andatleast50dBACLRat10MHzbelowthefirst(orabovethelast)activeW-CDMAcarrierinthebandallstars,

(TS25.141,Section6手机铃音下载.5尼克卡农.2.2),usingTestModel1.

–OTE:TheGC1115supports>70dBACLRusing85-tapcancellationpulsesorlonger.

•EVM:≤17铃儿响叮当下载.5%forQPSKmodulation(TS25.141,Section6简爱下载.7你是我今生该等的人.1),usingTestModel47k7k神曲.

–OTE:TheGC1115provides≤17.5%cEVMforallTestModelswithoutputPARdownto6dB.

•PCDE:≤–dB(TS25美国吉他网购.141,Section6刘宝瑞 斗法.7.2),usingTestModel我配不上你纵然很努力.

–OTE:TheGC1115provides≤-PCDEforallTestModelswithoutputPARdownto6dB弗洛蒙.

•Spuriousemissi:various(TS25.141花木兰电视剧主题曲,Section6.5喜爱夜蒲 歌曲.),usingTestModel1.

Relevantcdma2000Requirements

Ref.GPP2C.S0010-A(March0,2001):

•Section4暖玉难生烟.2:ModulationRequirements(Rho–waveformquality)

•Section4.:RFOutputPowerRequirements

•Section4追梦人 罗大佑演唱.4:LimitationEmissi

SUMMARYOFGC1115PERFORMACEUSIGGTESTMODEL

SIGALS

Table1.GPPPCDEandCompositeEVMPerformance

GTestSignal

TM1_64

TM1_64

TM1_64

TM_2

TM_2

TM_2

#ofcxrs

8dB

1

2

4

1

2

4

–50.7

–50.1

–49.8

–46.

–44.5

–42割れたリンゴ.5

PCDE(Spec:<-dB)

7dB

–46李玟档案.2

–45周子琰 我是传奇.6

–47澳大利亚的国旗图片.2

–41.4

–42.

–9.1

6dB

–41我的未来不是梦 伴奏.7

–42爱情会不会永久.2

–4.

–7.1

–8.2

–5mistral.6

5dB

–8.

–7.8

–9.8

–4郑伟杰.4

–6玛丽莲梦露经典照片.

–4.2

8dB

古琴价格.%

.4%

.9%

waldeinsamkeit.9%

4周杰伦婚礼.5%

7.0%

CompositeEVM(Spec:<17永远的忠诚下载.5%)

7dB

5.4%

5.8%

4什么也不说.9%

6董冬.5%

7我不是谁的宝贝.0%

10.0%

6dB

8俞敏洪励志演讲mp.5%

8.7%

7福原美穂.6%

9.7%

9.%

1陶喆 太美丽.2%

5dB

11无限动漫网在线观看免费下载.7%

12.7%

10.8%

1.5%

12neversaynever.%

15邙天尺.5%

TestConditi:

mulationprocessed614,400inputsamples(one10msecframeat61我管你.44Msamp/sec)

dcompositeEVMweremeasuredusingaRohde&SchwarzFSU

lationpulselengthsvariedfrom75to181

pulselengthsof85achieve–70dBACLRfor

pulselengthsof115achieve–70dBACLRforsingle-carrierUMTS

signals.

-carrierTestModelsignalsusedframesthatwerestaggeredby2msecbetweencarriers

1thru4wereassigned4,8,12断桥遗梦,and8cancelers,respectively(totalof2cancelers).

=7dB,Stages1thru4useddetectionthresholdsof8媳妇我错了,7,7孙俪 李健,and7dB,respectively尽管如此也要活下去.

=6dB,Stages1thru4useddetectionthresholdsof8,7陈泽恩,6流星蝴蝶剑片头曲,and6dB,respectively独角戏张艺兴.

=5dB,Stages1thru4useddetectionthresholdsof8trap歌词,6同一屋檐下主题曲,5,and5dBdj 小可,respectivelyk歌情人梦.

RESET

TheGC1115supportsthreekindsofreset:

et(onlythePLLsarereset)

rereset(allconfigurationregistersarebroughttotheirRESETvalues)

thhardwarereset

10

元器件交易网

GC1115

SLWS144–FEBRUARY2005

ingtheRESETpinoftheGC1115

also

reresetresultsinthefollowingGC1115conditi:

•Allinputpinsareputintheirhigh-impedancestate

•Alloutputpinsareputintheirhigh-impedancestate

•AllinternalregistersareresettotheirRESETstates

•Allstatemachinesareplacedintheirinitial(idle)states

•oconfigregisterscanbemodifiedbeforeclearingtheconfigreset光辉岁月 黄家驹.

GC1115InitializationSequence

TheGC1115initializatiequencerequiresthefollowingregistergroupstobeproperlyinitialized:

,PLL_COTROL解放区的天,CLK_COTROL,IO_COTROL

L,IO_MODE,DECIMATE红旗颂歌谱,RESOURCE_MASK,DELAY_MASK

gisters

tectionthresholdandtargetpeaklevelregisters

registers

_GAI老男孩之猛龙过江下载,OUT_OFFSET

_MODE,CACEL_LEGTHbreeno指令,CACEL_DELAY,cancellationcoefficients

Thefollowingparagraphsdescribeingeneraltermshoweachoftheseregistersisinitializedtoachievethe

desireduser-specifiedpeakreductionperformance.

RESET,PLL_COTROL,CLK_COTROL,IO_COTROL

TheRESETregistercontainsfourbitsthatcanindividuallyreset:

•Thememory-mappedregisters

•TheGC1115internaldatapath

•The“core”PLL

•TheoutputPLL

AtGC1115startup,hardwareRESETalwaysprecedesallotherregisteraccessesandthisassertsallinternal

urationcontrolresetmustalsobeclearedbeforeperformingsubsequentconfiguration

steps.

AftertheRESETbitshavebeenasserted,thePLL_COTROLandCLK_COTROLregisterouldbe

1115normallyoperatesatfourtimestheinputsamplerate,whilethe

outputclockrateisdeterminedbyseveraladditionalfactors(decimation,interpolation晴雯撕扇,andoutputformatand

mode)雪兔子.TheCLK_COTROLregisterdeterminesthePLLmultiplyingfactorsthatcontroltheGC1115coreclock

y,theIO_COTROLregisterdeterminestheinputandoutputformat(twos

complementorunsigned),theoutputenabledstate(tri-statedorenabled)bet6,andtheoutputbitwidth(18梁祝的简谱,16打工者之歌,14,or

12bits).

TheGC1115PLLsrequireawarm-uptimeofatleast1µsfromPLL_COTROLmodificationtoPLLreset

release,andatleast100µsfromPLL_COTROLandCLK_COTROLmodificationtoPLLresetreleasebefore

theinternalclockisstable梁龙拜师.

COTROL,IO_MODE,DECIMATE,RESOURCE_MASKjesse mccartney,

DELAY_MASK

TheCOTROLregistercontainssixcontrolbitsthatselectivelyenableordisablethefourPDCstages,the

interpolator森巴皇后,IMATEregisterallowsuserstodecimatetheinputsamplestreamby1

(nodecimation)OURCE_MASKregisterdetermineswhichoftheeightcancellationpulseSRAMs

areupdatedwithnewcancelpulsecoefficientswhenaCACEL_rly侠盗猎魔2下载,the

DELAY_MASKregisterdetermineswhichofthefourPDCstagesareaffectedbychangestotheCA-

CEL_DELAYregisterwhentheDELAY_SYCeventoccursb15.

11

元器件交易网

GC1115

SLWS144–FEBRUARY2005

SYCRegisters

TheGC1115containsagroupofSYCregistersthatcontrolthebehaviorofthirteendifferentsync-related

ctiononlydescribesthe

tapathSYCregisters(RCV_SYC,

STAGE_SYC,DECIM_SYCpsychokiller,andITERP_SYC)mustbesynchronizedbyahardwareeventbeforethe

ditionalancillarySYCregisters(DELAY_SYC,CACEL_SYC敢不敢爱 胡歌,

RESOURCE_SYC海鸣威演唱会,andOUTGAI_SYC)mustbesynchronizedbyahardwareorsoftwareeventbeforethe

mmendsthatthefourdatapathSYC

registersbesynchronizedusingaSYC_AorSYC_Bhardwareevent童心向党歌曲歌词,andthattheancillarySYCregisters

besynchronizedusingaSW_attheSYCregistersmustbeinitialized

mple,CACEL_SYCmustbe

initializedbeforethecancellationcoefficientsaretransferredfromtheGC1115’adowRAMtotheinternal

cancelerRAMs.

TSQD(Threshold)andRESOURCE_CTRegisters

ThebehaviorofeachPDCstageiscontrolledbytwothresholdregisters(DETECT_TSQDxandGAI_TSQDx)

andoneresource(RESOURCE_CTx)register,wherexrepresentsaspecificstage(from1to4)绣红旗伴奏.These16-bit

registerscontainthescaledthreshold-squaredvaluesforthestage’sdetectionthresholdandtargetpeaklevelnba十佳球.

The16-bitRESOURCE_CTregisterscontainthenumberofcancellationresources(from0to8)assignedto

:ifaRESOURCE_CTregisterissetto(0≤≤8),thatPDCstagecancancelupto4×

urcancellationpulsegeneratorsare

supportedbyeachcancelerRAM.

ITERPRegisters

AprogrammableoutputinterpolatorfollowstheGC1115’1115interpolatoroperatesin

oneoffourmodes:

•Bypass(thedefaultcondition)

•Interpolateby2(complexoutput)

•Interpolateby2(realoutputcenteredatfs/4)

•Interpolateby4(realoutputcenteredatfs/4)

Theinterpolator’sfiltercoefficientsareprogrammableandmustthereforebeinitialized,eveninbypassmode,

of40interpolatorregisters(fromD0_COEF0thru

D_COEF9)mustbeinitializedbeforetheGC1115processesinputdata.

OUT_GAIandOUT_OFFSETRegisters

TheGC1115outputcircuitryincludesindividualIandQgainandoffsetregistersthatallowuserstocompensate

forI/QimbalancesinsubsequentD/Aconvertersand/orsubsequentanalogI/ethe

OUT_GAIandOUT_OFFSETregistersareuser-programmableanaesthesia,theymustbeproperlyinitializedbeforethe

_GAIregistersarenormallyinitializedto0x2000(gainof1.0)陈宁,

andOUT_OFFSETregistersareusuallyinitializedto0x0000缘分 张国荣.

CACEL_MODEposh spice,CACEL_LEGTH,CACEL_DELAY公主selina,Cancellation

Coefficients

TheGC1lationcoefficientscan

containeitherrealorcomplexvalues,sreason1hhhhhh,

theCACEL_MODE,CACEL_LEGTH西河大鼓老来难,andCACEL_DELAYregistersmustbeproperlyinitializedbeforethe

cellationcoefficientsthemselves(ineitherrealorcomplex

format)mustbecopiedtotheGC1115cancelerRAMsinatwo-stepprocess:

•ThemicroprocessororFPGAwritesthecancellationcoefficientstomemory-mappedshadowRAMregisters

•TheshadowRAMregistersarecopiedtooneormore(ofatotalofeight)cancellationpulseSRAMsaftera

CACEL_SYCeventoccurs.

12

元器件交易网

GC1115

SLWS144–FEBRUARY2005

TheCACEL_MODEregisterdetermineswhethertheGC1115isusingrealorcomplexcoefficients

(correspondingtoasymmetricoranasymmetricinputspectrum)我们的爱歌词,aswellaswhethercoefficientsymmetryisto

cientsymmetry(mirroredcoefficients)

CACEL_MODEregistera-zero

timeoutvalueindicatesthatthePDCsaretoexaminetheenvelopeoftheinputsignal个天使替我爱你,ratherthanthemagnitude

-providedMatlabcancelpulsedesignsoftwareautomaticallycalculatesthetimeoutvalue.

TheCACEL_LEGTHregisterspecifiesthenumberofuniquecancellationcoefficientsusedtocancelpeaks岁月友情.

TheCACEL_MODEregistersettingsaffecttheinterpretationofCACEL_lowingtable

describeshowCACEL_LEGTHandCACEL_DELAYareused地下婴儿乐队,dependingonCACEL_MODE:

hipBetweenCACEL_MODE,CACEL_LEGTHsum 41,

andCACEL_DELAY

CACEL_MODE

0(Real,uniquecoefs)

1(Real,mirroredcoefs)

1(Complex糖醋活鱼,uniquecoefs)

CACEL_LEGTH

(odd御龙铭千古,from15to255)

(odddoctor异乡人结局,from15to255)

(odd,from15to127)

CACEL_DELAY

(-1)/2

(-1)/2

OPERATIG

MODES

TheGC1115supportsavarietyofoperatingmodesthataccommodatearangeofinputformatso children,numberof

channels,andfollow-onA/electaspecificinputandoutput

operatingmodethatdependsupon:

•Thenumberofchannels(oneortwo)

•Theinputsamplingrate:

–Upto10Msamp/secin1-channelmode

–Upto65Msamp/secin2-channelmode

–Downto25Msamp/secin1-channelparallelmode

–Downto12.5Msamp/secin1-channelmultiplexedmode评剧电影杨三告状,orin2-channelmode

•Theinputformat(parallelormultiplexed)

•Theinputdecimationfactor(1,2,or4)

•Theoutputinterpolatormode(bypass,2xreal,2xcomplex,4xreal)

•Theoutputformat(parallel十二之天贰ol,multiplexed,orodd-even;realorcomplex)

•TheinternalGC1115clockrate(upto20MHz)

•ThePLLmultiplier(1x,2x,or4x)

1

元器件交易网

GC1115

SLWS144–FEBRUARY2005

Thefollowingctraintsrestricttheallowedcombinatiofthepreviouslylistedparameters:

minputpintogglingrate:10MHz

moutputpintogglingrateinsingle-endedmode:10MHz

minternalGC1115clockrate:05MHz(I_CLKx1wonderfultonight,x2阚立文 那些年,x4)

mPLL-driveninternalGC1115clockrate(atdivide-by-1PLLoutput):100MHz

mI_CLKrate:25MHz(usingthe4xPLLmultiplierwithI_CLK=25MHzgeneratesthe100MHz

minimumPLLoutputrate想家的歌曲,atdivide-by-1PLLoutput)

TableandTable4summarizetheavailableone-channelandtwo-channeloperatingmodesoftheGC1115李贞贤阿里阿里高清,

respectively.

-ChannelOperatingModes

IPUTFOR-

MAT

Parallel

Parallel

Parallel

Parallel

Parallel

Parallel

Parallel

Parallel

Parallel

Parallel

Parallel

Parallel

Muxed

Muxed

Muxed

Muxed

Muxed

Muxed

Muxed

Muxed

Muxed

Muxed

Muxed

Muxed

OUTPUT

FORMAT

Parallel

Parallel

Parallel

Parallel

Muxed

Muxed

Muxed

Muxed

Odd/Even

Odd/Even

Odd/Even

Odd/Even

Parallel

Parallel

Parallel

Parallel

Muxed

Muxed

Muxed

Muxed

Odd/Even

Odd/Even

Odd/Even

Odd/Even

DECIM

1

1

2

2

1

1

2

2

1

1

2

2

1

1

2

2

1

1

2

2

1

1

2

2

ITERP

1

2c

1

2c

1

2c

1

2c

2r

4r

2r

4r

1

2c

1

2c

1

2c

1

2c

2r

4r

2r

4r

PLLMULT

4

4

2

2

4

4

2

2

4

4

2

2

2

2

1

1

2

2

1

1

2

2

1

1

I_CLK

(MHz)

25-75

25-65

50-10

50-10

25-65

25-2采菱.5

50-10

50-10

25-75

25-75

50-10

50-10

50-10

50-10

100-10

100-10

50-10

50-65

100-10

100-10

50-10

50-10

100-10

100-10

CORECLK

(MHz)

100-05

100-260

100-260

100-260

100-260

100-05

100-260

100-260

100-05

100-05

100-260

100-260

100-260

100-260

100-10

100-10

100-260

100-10

100-10

100-10

100-260

100-260

100-10

100-10

OUT_CLK

(MHz)

25-80

50-10

25-65

50-10

50-10

100-10

50-10

50-10

50-160

100-250

100-250

100-250

25-65

50-10

25-2.5

50-65

50-10

100-10

25-2回乡偶书.5

50-65

25-65

50-10

25-2.5

50-65

f

s

/4(MHz)

A

A

A

A

A

A

A

A

12李勤.5-40

25-62.5

25-62.5

25-62.5

A

A

A

A

A

A

A

A

12薄樱鬼第一季片尾曲.5-2冲吧.5

25-2.5

12.5-16我不是天使.25

25-2.5

-ChannelOperatingModes

IPUT

FORMAT

Muxed

Muxed

Muxed

Muxed

Muxed

Muxed

OUTPUT

FORMAT

Muxed

Muxed

Muxed

Muxed

Real

Real

DECIM

1

1

2

2

1

2

ITERP

1

2c

1

2c

2r

2r

PLLMULT

2

2

1

1

2

1

I_CLK

(MHz)

50-10

50-10

100-10

100-10

50-10

100-10

CORECLK

(MHz)

100-260

100-260

100-10

100-10

100-260

100-10

OUT_CLK

(MHz)

50-10

100-260

50-65

100-10

50-10

50-10

f

s

/4(MHz)

A

A

A

A

A

A

14

元器件交易网

GC1115

SLWS144–FEBRUARY2005

ClockGenerationandPLL

Operation

outputfrequencyis1电视剧几度夕阳红,2,or

4timesthefrequencyoftheuser-providedI_mple,iftheGC1115isprovidedwithaninput

signalstreamat61.44Msamp/secandthePLLisconfiguredtooperateat4x,theGC1115’sinternalclockrate

1115’le

affectstheselectionofretion两败俱伤,the

GC1115’100MHzminimum

PLLoutputclockrateisdrivenbythePLLdesign天津狗食馆,whilethe05MHzmaximumPLLoutputclockrateislimited

bytheGC1115’ately,theGC1115’sinternalPLLcanbebypassed,effectivelyusing

I_r,inthismode,eachinputsamplemustbepresentedtothe

inputport(s)forfourcecutiveclockcycles醉后决定爱上你的所有歌曲,hisbypassPLL

configurationallowsuserstooperatetheGC1115atinputsamplingrateslowerthan25Msamp/sec you.

OTE:

Usersmayhavetoadjusttheclockphase麦当劳汉堡吃出蛆,relativetothedata曲谱歌谱大全,forproperoperation

atDECIM_SYCmayalsohavetobeenabledona

particularuser-selectedsamplephase(1of4phases)inordertoachieveproper

operationduringbypassPLLmode致爱丽丝钢琴曲.

GC1115userouldbeawarethatthechoiceofinputoperatingmodeaffectsI_CLKandthusalsoaffectsthe

ically红娘子主题曲,GC1115usersmustensuretherelatihipowninTable5:

_CLK苦茶油,PLLMode不可触摸的恋人,andCoreClock

I_CLK

(MHz)

25-75

50-10

100-10

1-125

PLLMODE

4x

2x

1x

Bypass

GC1115CORECLOCK

(MHz)

100-05

100-260

100-10

1-125

GC1115userouldaically死亡空间2下载,

thattheodd-evenoutputmoderequires

thattheinterpolatoroperateinoneofitstworeal-outputmodes:2xrealor4xreal元龙动漫视频.

ockandInterpMode

GC1115CORECLOCK

(MHz)

100-05

100-260

100-260

100-10

100-05

100-260

ITERPMODE

Bypass

Bypass

2x(complex)

2x(complex)

2x(real)

4x(real)

OUTPUTFORMAT

Parallel

MuxedI/Q

Parallel

MuxedI/Q

Odd/Even

Odd/Even

OUTPUTCLOCKRATE

(MHz)

25-75

50-10

50-10

100-10

25-75

50-10

SummaryofRegistersAffectingGC1115

Clocks

ThefollowingGC1115registersaffecttheinput,core,andoutputclocks:

•PLL_COTROL(0x1):determinesPLLmultiplier(1x,2x,4x天籁童音,bypass)andsourceofTxfeedback

•CLK_COTROL(0x2):determinesrelatihipofI_CLKandOUT_CLKtoCORE_CLK

•IO_MODE(0x9):determinesthenumberofchannels(1or2)底细,theinputdataformat(parallel,muxed)爱存在歌词,and

theoutputdataformat(parallel,muxed李宝蓝,odd-even)

•DECIMATE(0xC):determinesthedownsamplingoftheinputstreampriortoGC1115processing

•ITERP_CTL(0x80):determinestheinterpolatoroperatingmode(bypass紧张的音乐,2xcomplex,2xreal,4xreal).

otethatITERP_CTLandIO_MODEmustbecistenttoensureproperoperation!

15

元器件交易网

GC1115

SLWS144–FEBRUARY2005

Figure7demtratestheGC111registersthatdeterminethevariousinternalclockfrequenciesgirl with one eye.

PLLfeedback

PLL_COTROL

9810

PLL_CORE

FCLK

PLLmult

CTRL

÷1

÷2

÷4

2

1

0

时间规划局影评.

loads

2

1

0

OUT_CLK

toLOOP_SEL

I_CLK

RCLK

倒数第二个男朋友.

PLLbypass

OUT_CLKselect

LOOP_I

I_CLKphaseCLK_CORE

CLK_COTROL

210

0PLL_OUT

FCLK

RCLK

÷1

÷2

÷

4

2

1

0

.

CLK_OUT

÷2

÷

4

LOOP_OUT

LOOP_SEL

_COTROLandCLK_COTROLRegisters

DETAILEDDESCRIPTIOOFGC1115FUCTIOALBLOCKS

MicroprocessorInterfaceRegistersandInterrupts

TheGC1115’smicroprocessorinterfacepresentsthedeviceasasetofmemory-mappedregisterstothe

ectsoftheGC1115areconfigured,monitored片头门,andcontrolledthrough

roprocessorinterfacecistsofa16-bitbi-directionaldatabusD[15:0]胡彦斌专辑,an8-bitaddress

busA[7:0]谣诼,awritestrobeWR2017湖南跨年演唱会,areadstrobeRD王心凌睫毛弯弯舞蹈,inselectsbetweenthetwo-pin

andthree-pinoperation:

•(three-pinmode;WRisused)separatereadstrobeonRDpinandwritestrobeonWRpin

•(two-pinmode;WRisgrounded)combinedRD/WRsignalusingtheGC1115’sRDpin失恋阵线联盟 苏妙玲.

OTE:

usetwo-pinmode

withrev0silicondj刘薇.

Figure8demtratesagluelessinterfacebetweenagenericTexasInstrumentsTMS20CxxDSPchipanda

GC1115免费mp4,assumingthattheCG1115istheonlydeviceintheDSP’sI/MS20CxxDSP

controlsmultipledevicesinitsI/Omemoryspace,additionalexternaladdressdecodingisrequiredtogenerate

CSlittlegirl.

ThemicroprocessororDSPcanconfiguretheGC1115togenerateaninterruptattheoccurrenceofvarious

refertothedescriptionoftheIT_MAPandIT_MASKregistersforacomplete

descriptionoftheseevents.

16

元器件交易网

GC1115

SLWS144–FEBRUARY2005

DETAILEDDESCRIPTIOOFGC1115FUCTIOALBLOCKS(continued)

TheGC1erread/write

accessesarefasterthanRAMread/essisusedforsnapshotRAMandshadowRAM.

Pleaserefertotheessis

limitedtoMHz.

TMS20Cxx

A[7:0]

D[15:0]

RD/WR

IOS

IT_A

A[7:0]

D[15:0]

RD_

WR_

CS_

IT_

GC1115

20Cxx

–

GC1115

Interface

UsersconfiguretheGC1115by

registersareaccessedusingtheGC1115’sA[7:0],D[15:0],CS,RD郑允浩图片,pleteregistermapis

nGC1115registerscanbemodifiedatanytimeduring

GC1115operation,7summarize

ticularupdate

conditionisnotmet宁陵初级中学58秒视频,theGC1115willnotupdatethespecifiedregister海客谈瀛洲.

1115RegisterUpdates

ADDRESS

0

1

2

4

5

6

7

8

9

10(0xA)

11(0xB)

12(0xC)

1(0xD)

14(0xE)

15(0xF)

16(0x10)

17(0x11)

18(0x12)

19(0x1)

20(0x14)

AME

RESET

PLL_COTROL

CLK_COTROL

COTROL

IT_MAP

IT_MASK

MASK_REV

SW_TRIGGER

IO_COTROL

IO_MODE

POWER_CTL

POWER

DECIMATE

TIMER_HI_RST

TIMER_LO_RST

CACEL_MODE

CACEL_LEGTH

CACEL_ADDRESS

CACEL_DATA

RESOURCE_MASK

DELAY_MASK

WHECAREGISTERBEUPDATED?

Anytime

Anytime

Anytime

Anytime

AfterGC1115sendsaninterrupt

Anytime

READOLY

Anytime

Anytime

AfterGC1115receivesI_CLK

Anytime

READOLY

Anytime(afterchange,outputmaybeinvalidforafewsamples)

WhentimerisOFF

WhentimerisOFF

Anytime

Anytime

Anytime

Anytime

Anytime

Anytime

17

元器件交易网

GC1115

SLWS144–FEBRUARY2005

DETAILEDDESCRIPTIOOFGC1115FUCTIOALBLOCKS(continued)

1115RegisterUpdates(continued)

ADDRESS

21(0x15)

22(0x16)

2(0x17)

24(0x18)

25(0x19)

26(0x1A)

27(0x1B)

28(0x1C)

29(0x1D)

0(0x1E)

1(0x1F)

2(0x20)

(0x21)

4(0x22)

5(0x2)

6(0x24)

7(0x25)

48(0x0)

49(0x1)

50(0x2)

51(0x)

56(0x8)

57(0x9)

58(0xA)

59(0xB)

64(0x40)

65(0x41)

66(0x42)

67(0x4)

72(0x48)

7(0x49)

74(0x4A)

75(0x4B)

96(0x60)

97(0x61)

98(0x62)

99(0x6)

100(0x64)

101(0x65)

102(0x66)

10(0x67)

112(0x70)

11(0x71)

114(0x72)

115(0x7)

116(0x74)

18

AME

SIG_GE_CTL

SIG_GE_BASE

SIG_GE_IC

CRC_RESULT

RCV_SYC

STAGE_SYC

DECIM_SYC

TIMER_SYC

DELAY_SYC

CACEL_SYC

RESOURCE_SYC

ITERP_SYC

OUTGAI_SYC

OUTPI_SYC

SIG_GE_SYC

SAP_A_SYC

SAP_B_SYC

RESOURCE_CT1

DETECT_TSQD1

GAI_TSQD1

CACEL_DELAY1

RESOURCE_CT2

DETECT_TSQD2

GAI_TSQD2

CACEL_DELAY2

RESOURCE_CT

DETECT_TSQD

GAI_TSQD

CACEL_DELAY

RESOURCE_CT4

DETECT_TSQD4

GAI_TSQD4

CACEL_DELAY4

SAP_A_COTROL

SAP_A_STATUS

SAP_A_ADDRESS

SAP_A_DATA

SAP_A_MIVAL

SAP_A_MAXVAL

SAP_A_SCALER

SAP_A_HISTCOUT

SAP_B_COTROL

SAP_B_STATUS

SAP_B_ADDRESS

SAP_B_DATA

SAP_B_MIVAL

WHECAREGISTERBEUPDATED?

Anytime

Anytime

Anytime

Anytime

Anytime(afterchange霹雳劫之末世录,outputmaybeinvalidforafewsamples)

Anytime(afterchange好听的中文歌曲推荐,outputmaybeinvalidforafewsamples)

Anytime(afterchange,outputmaybeinvalidforafewsamples)

Anytime(afterchange,outputmaybeinvalidforafewsamples)

Anytime(afterchange,outputmaybeinvalidforafewsamples)

Anytime(afterchange书虫先祖,outputmaybeinvalidforafewsamples)

Anytime(afterchange,outputmaybeinvalidforafewsamples)

Anytime(afterchange,outputmaybeinvalidforafewsamples)

Anytime

Anytime

Anytime

Anytime

Anytime

Anytime

Anytime

Anytime

Anytime

Anytime

Anytime

Anytime

Anytime

Anytime

Anytime

Anytime

Anytime

Anytime

Anytime

Anytime

Anytime

Anytime

READOLY

Anytime

Anytime

WhenSnapAisOFF

WhenSnapAisOFF

WhenSnapAisOFF

WhenSnapAisOFF

Anytime

READOLY

Anytime

Anytime

WhenSnapBisOFF

元器件交易网

GC1115

SLWS144–FEBRUARY2005

DETAILEDDESCRIPTIOOFGC1115FUCTIOALBLOCKS(continued)

1115RegisterUpdates(continued)

ADDRESS

117(0x75)

118(0x76)

119(0x77)

127(0x7F)

128(0x80)

129(0x81)

10(0x82)

gem.太阳出来喜洋洋伴奏..

169(0xA9)

192(0xC2)

19(0xC)

194(0xC4)

半岛铁盒mp.套马杆乌兰图雅mv..

209(0xD1)

210(0xD2)

211(0xD)

一帘幽梦歌词...

242(0xF2)

24(0xF)

244(0xF4)

245(0xF5)

246(0xF6)

247(0xF7)

248(0xF8)

AME

SAP_B_MAXVAL

SAP_B_SCALER

SAP_B_HISTCOUT

COUTER_VAR

ITERP_CTL

(reserved)

D0_COEF0

角落音乐..超能陆战队主题曲.

D_COEF9

SOFT_LEGTH

SOFT_TSQD

SOFT_COEF0

.广场舞美酒加咖啡.奈何桥孟婆汤.

SOFT_COEF15

SOFT_TAB_SCALE

SOFT_IVGAI0

.xietingfeng.越长大约孤单.

SOFT_IVGAI1

OUT_GAI0

OUT_GAI1

OUT_OFFSET_I0

OUT_OFFSET_Q0

OUT_OFFSET_I1

OUT_OFFSET_Q1

WHECAREGISTERBEUPDATED?

WhenSnapBisOFF

WhenSnapBisOFF

WhenSnapBisOFF

Anytime

Wheninterpolatorisbypassed

(reserved)

Wheninterpolatorisbypassed

dirty dancing...

Wheninterpolatorisbypassed

Whensoftlimiterisbypassed

Whensoftlimiterisbypassed

Whensoftlimiterisbypassed

..刘伯辛.

Whensoftlimiterisbypassed

Whensoftlimiterisbypassed

Whensoftlimiterisbypassed

..友谊之光歌词.

Whensoftlimiterisbypassed

Whensoftlimiterisbypassed

Whensoftlimiterisbypassed

Whensoftlimiterisbypassed

Whensoftlimiterisbypassed

Whensoftlimiterisbypassed

Whensoftlimiterisbypassed

19

元器件交易网

GC1115

SLWS144–FEBRUARY2005

SettingDetectionThresholdsandTargetPeak

Levels

ThemostobviputPAR

tely,thePARdeterminesthe

ximumvalueisthenadjustedtofitjustunderthe1dBcompression

ragepoweroftheGC1115inputsamples(0dBpointontheCCDFcurve)canbe

idesaMatlabfunctionthatusesagroupofinputsamplesto

calculatethe16-bitthreshold-squaredvaluesthatareloadedintotheGC1115’sDETECT_TSQDand

GAI_TSQDregisters(onepairofregistersforeachoffourstages;totalofeightTSQDregisters).Uponrequest,

TIwillprovidetheMatlabsourcecode(m-file)forthethresholdcalculatibasedoninputsamples.

Alternately萱小萱,GC1115userscanusetheGC1115’sbuilt-inhardwarepowermeasurementcapabilitytodetermine

ectionthresholdsandtargetpeaklevelscanthenbecalculatedfromthe

averageinputpower.

GC1115thresholdsettingsarebasedonathresholdSQUARED(power)value,notathreshold(magnitude)

lowingexampledemtrateshowtheGC1115’sthreshold-squaredvaluesarecalculated天台爱情插曲,using

theMatlablanguage:

%

%Calculatetheaveragepowerofthecomplexinputarrayx广场舞沙拉拉,andthedesiredfractional(magnitude)

%threshold,giventheuser-specifiedtargetpeaklevel(indB).

avgMag=sqrt(mean(abs(x)逆蝶歌词.^2));

frac=avgMag*10^(dB_target/20);

%

%Derivethefollowingthreshold-relatedvaluesfromthetargetPARmagnitude:

%

%threshsigned,14-bitthresholdvalue(amagnitude!)

%threshSqdthresholdsetasa16-bitmag-squaredvalue(reducedfroma29-bitmag-squaredvalue)

%

thresh=floor(frac*2^1);%setthethresholdrelativetosigned14-bitsamples

threshSqd=floor((thresh^2)/(2^1));%mag-sqdofa14-bitvalue=28bitsplusanadd=29

bits

%Divideby2^1toconvertto16-bitthresh-sqdvalue

TputPARlevelsbelow

8dB放克,bothcEVMandPCDEperformanceisimprovediftheearlierstageshavehigherdetectionthresholds(set

to8dBor7dB)satisfaction下载,whilelaterstagescontainthefinal,desiredthreshold(7dB,6dBquestioning,or5dB,forinstance).Inall

cases该死的温柔伴奏,theGAI_TSQDregisterouldbesettothetargetpeaklevel(desiredoutputPAR)我在那一角落患过伤风下载.Whenthedesired

outputPARisatorabove8dB如何是好韩文歌词,theDETECT_TSQDandGAI_TSQDregistersaresetaowninTable8:

ionandGainThresholds,PAR≥8dB

STAGE

1

2

4

DETECT_TSQD

my_tsqd

my_tsqd

my_tsqd

my_tsqd

GAI_TSQD

my_tsqd

my_tsqd

my_tsqd

my_tsqd

WhenthedesiredoutputPARisbelow8dB,therecommendedDETECT_TSQDandGAI_TSQDregister

settingsaresetaowninTable9:

ionandGainThresholds,PAR<8dB

STAGE

1

2

4

DETECT_TSQD

min(8dB民谣吉他的价格,my_tsqd+2dB)

min(7dB放开手,my_tsqd+1dB)

my_tsqd

my_tsqd

GAI_TSQD

my_tsqd

my_tsqd

my_tsqd

my_tsqd

20

元器件交易网

GC1115

SLWS144–FEBRUARY2005

DesigningCancellationPulseCoefficients

lofdesigningcancellationpulsesis

nputsignalcontainsonecarrier三万英尺,thecancellationpulse’s

centerfrequencyandb

multi-carriersignals,multiplesingle-carriercancellationpulsesareaddedtogethertocreateaspectrumthatis

lofcancellationpulsedesignistoplaceenergy

OLYinthosefrequencyregiwheretheinputsignalhasappreciableenergy忧郁,arrierbands

signmethodensuresthatcancellationpulseenergyisinsertedonlywhereinputsignal

energyisalreadypresent高林生,andtoavoidplacinganyadditionalenergyoutsidethosebands秦腔张连买布,sincesuch

out-of-bandenergywouldworsenACLRperformancemandolin.

Uponrequest,TIwillprtlab

softwarerequiresthefollowinginputparameters:

•Inputsamplingrate

•Single-carrierbandwidth

•Carriercenterfrequencies

•Desiredcancellationpulselength(anoddnumber;from15to255forrealcancelpulses,andfrom15to127

forcomplexcancelpulses)

TheMatlabcancellationpulsedesignsoftwarethencallsastandardMatlabFIRfilterdesignfunction(suchas

fir1欧美经典老歌500首,firls我把爱情给了谁,orremez)todesignaprototypecancellationpulsewhosebandwidthmatchesthesingle-carrier

nputsignalcontainstwoormorecarriers,copiesofthisprototypefilterwillbe

translatedtothecenterfrequencyofeachcarrierandthecopiessummedtogetherjapanese schoolgirls.

CancellationCoefficientShadow

RAM

TheGC1115usesaderivative-basedapproximationmethodtocalculatehighlyaccuratephaseshiftsofthe

roximationmethodrequiresnotonlythecancellationcoefficientsthemselvestobe

storedintheGC1115,butalsothecoefficients’cellationcoefficientshadow

RAMcontains768uniqueaddressesthatholdupto256uniquecancellationcoefficientsandtheirfirstand

secondderivatives孔雀飞来.

OTE:

Uponrequest童话铃声,TIwillprovideaMatlabscriptthatcalculatestheproperfirstand

secondderivativesfromuser-designedcancellationcoefficients.

stinctionisfullyexplainedinthesectionentitled

ShadowRAMandCancelerRAMs,roprocessororDSPcontrollingtheGC1115canonlyaccess

theshadowRAM.

CancellationcoefficientshadowRAMisuseddifferently理查德钢琴曲下载,dependingontheCACEL_MODEsetting(realor

complexcoefficients;uniqueormirroredcoefficients)杨培安演唱会.Table10烟雨蒙蒙电视剧,Table11,andTable12illustratehow

cancellationcoefficientsarestoredandaccessedintheGC1115’scancellationcoefficientshadowRAM.

白狐mp4,UniqueCoefficients

TYPEOFDATA

Coefficients

ADDRESS

0

1

2

简单而隆重.栗儿.徐良演唱会.

CACEL_LEGTH-1

Firstderivative256

257

258

..吴品醇.

255+CACEL_LEGTH

COEFFICIET

coef[0]

coef[1]

coef[2]

我的快乐. shop音译.

coef[CACEL_LEGTH-1]

deriv1[0]

deriv1[1]

deriv1[2]

.白昼之月.咱也不知道咱也不敢问.

deriv1[CACEL_LEGTH-1]

21

元器件交易网

GC1115

SLWS144–FEBRUARY2005

,UniqueCoefficients(continued)

TYPEOFDATA

Secondderivative

ADDRESS

512

51

514

喝酒喝到吐想你想到哭什么歌...

511+CACEL_LEGTH

COEFFICIET

deriv2[0]

deriv2[1]

deriv2[2]

with you 绊..铁血丹心歌曲.

deriv2[CACEL_LEGTH-1]

Coefficientaccesspattern:

coef[0],coef[1],…断了线的风筝,coef[CACEL_LEGTH-2]八月十五月儿明,coef[CACEL_LEGTH-1]

,MirroredCoefficients

TYPEOFDATA

Coefficients

Firstderivative

Secondderivative

ADDRESS

SameasTable10

SameasTable10

SameasTable10

COEFFICIET

SameasTable10

SameasTable10

SameasTable10

Coefficientaccesspattern:

coef[0],coef[1],…游来游去,coef[CACEL_LEGTH-2]威廉古堡,coef[CACEL_LEGTH-1],coef[CACEL_LEGTH-2]加州旅店,

coef[CACEL_LEGTH-]哈雅乐团,…逃亡者planb,coef[1],coef[0].

xCoefficients

TYPEOFDATA

Complexcoefs(realpart)

ADDRESS

0

1

2

.哈哈吼吼..

CACEL_LEGTH-1

Complexcoefs(imaginarypart)128

129

10

..prisoner.

127+CACEL_LEGTH

Firstderivative(realpart)256

257

258

..k d lang.

255+CACEL_LEGTH

Firstderivative(imaginarypart)84

85

86

...

8+CACEL_LEGTH

Secondderivative(realpart)512

51

514

..摇滚北京1.

511+CACEL_LEGTH

COEFFICIET

coef_re[0]

coef_re[1]

coef_re[2]

soul link.新月冰冰..

coef_re[CACEL_LEGTH-1]

coef_im[0]

coef_im[1]

coef_im[2]

saku.たゆたゆ.我好想你歌词.

coef_im[CACEL_LEGTH-1]

deriv1_re[0]

deriv1_re[1]

deriv1_re[2]

.爱的阶梯片尾曲.青春无悔不死.

deriv1_re[CACEL_LEGTH-1]

deriv1_im[0]

deriv1_im[1]

deriv1_im[2]

.jbm.家族歌儿歌视频.

deriv1_im[CACEL_LEGTH-1]

deriv2_re[0]

deriv2_re[1]

deriv2_re[2]

越单纯越幸福 歌词.歌声与微笑舞蹈..

deriv2_re[CACEL_LEGTH-1]

22

元器件交易网

GC1115

SLWS144–FEBRUARY2005

xCoefficients(continued)

TYPEOFDATA

Secondderivative(imaginarypart)

ADDRESS

640

641

642

.台版恶作剧之吻插曲..

69+CACEL_LEGTH

COEFFICIET

deriv2_im[0]

deriv2_im[1]

deriv2_im[2]

梁静茹情歌歌词..快乐的出帆.

deriv2_im[CACEL_LEGTH-1]

Coefficientaccesspattern:

{coef_re[0]澳门六下彩免费资料网址,coef_im[0]},{coef_re[1],coef_im[1]},…回来原唱,

{coef_re[CACEL_LEGTH-1]泳装歌曲,coef_im[CACEL_LEGTH-1]}

WritingCancellationCoefficientstoShadow

RAM

TheGC1115usestheCACEL_ADDRregisterasacoefficientmemorypointertoaccesscancellation

directaddressingmethodrequiresonlytworegisters(CACEL_ADDRand

CACEL_DATA)intheGC1115memorymap凭什么我爱你,whileallowingGC1115usersaccessto768uniqueshadowRAM

addresses你打不过我吧.

ToaccessaparticularshadowRAMlocationchristinagrimmie,themicroprocessororDSPthatcontrolstheGC1115firstwrites

thedesiredaddressintotheCACEL_etotheshadowRAM,themicroprocessororDSP

thenwritesthedesiredcoefficientvaluetotheCACEL_to(orreadfrom)the

CACEL_DATAregisterautomaticallypost-incrementstheaddressintheCACEL_

followingexampledemtrateshowtheCACEL_ADDRauto-incrementfeatureisusedtoinitializethefirst

threecancellationcoefficientshadowRAMlocatimem(0)民间禁忌杂谈,mem(1),andmem(2):

STEP

1

2

4

REGISTER

CACEL_ADDR

CACEL_DATA

CACEL_DATA

CACEL_DATA

VALUE

0

0x111

0x456

0x21

CACEL_ADDR

AUTO-ICREMET

0

0→1

1→2

2→

COMMETS

addr=0

mem(0)=0x111

mem(1)=0x456

mem(2)=0x21

Alternately,themicroprocessororDSPsoftwarecanspecifyashadowRAMaddress(0.单身情歌吉他谱.767)witheach

CACEL_

followingexampledemtrateshowtheCACEL_ADDRdirect-addressingmodeisusedtoinitializethefirst

threecancellationcoefficientshadowRAMlocatimem(0)年会主持背景音乐,mem(2)囚鸟张宇,andmem(1),innon-sequentialorder(just

todemtratethedirectaddressingcapability):

STEP

1

2

4

5

6

REGISTER

CACEL_ADDR

CACEL_DATA

CACEL_ADDR

CACEL_DATA

CACEL_ADDR

CACEL_DATA

VALUE

0

0x111

2

0x21

1

0x456

CACEL_ADDR

AUTO-ICREMET

0

0→1

2

2→

1

1→2

COMMETS

addr=0

mem(0)=0x111

addr=2

mem(2)=0x21

addr=1

mem(1)=0x456

ShadowRAMandCanceler

RAMs

TheGC1115containseightuniquecancelerRAMmemoriesthatholdcancellationcoefficientsandtheir

theeightuniquecancelerRAMscanbeaccesseduptofourtimesperI_CLKclockperiod王中王管家婆开奖结果小说,

ructureallowsfourcancelerstobe

supportedbyonecancelerRAMperI_ructurealsomakesitpossibletostoreeight

differentcancellationcoefficientsetsintheGC1115(althoughthisoptionisnotrecommended)乱红.Withatotalof

2

元器件交易网

GC1115

SLWS144–FEBRUARY2005

eightcancelerRAMs,theGC1115canhaveupto2cancelersrunningindependentlyperchannel(four

cancelerspercancelerRAMperchannel).Cancellationpulseresourcesareallocatedingroupsoffourper

channel,celerRAMatatime,istersRESOURCE_CT1thru

RESOURCE_alnumberof

resourcescannotexceed8二人台走西口歌词.

TheCACEL_ADDRandCACEL_DATAregistersareusedtowritetoanindependent“shadowRAM”regrettable.Using

theCACEL_ADDRandCACEL_DATAregisters,theGC1115’scontrollingmicroprocessororDSPwrites

cancellationcoefficientsandderivativevaluestothiadowRAM汤潮,andnotdirectlytothecancelerRAMs

OEF_SYCsynchronizationeventoccurs飞越颠峰,thecontentsoftheshadowRAMarecopied

(onevalueperinternalGC1115clockcycle)tothosecancelerRAMswhosecorrespondingbitissetinthe

RESOURCE_heRESOURCE_CTregisters启示录讲道视频,cancelersmaybeseparatelytakenoff-line同桌的你 赵本山,

updated,proachensuresthattheGC1115isnever

withoutcancellationresources康美情.

Tosummarize,cancellationcoefficientsandtheirderivativesarewrittentocancelerRAMsasfollows:

ACEL_ADDRandCACEL_DATAmrmr少女时代,writeupto768cancelercoefficientsandtheirderivativesto

shadowRAM

heRESOURCE_MASKregister全世界分手,specifywhichcancelerRAMsaretobeinitializedfromshadowRAM

whentheCOEF_SYCeventoccurs

heCOEF_SYCregister奇洛李维斯,specifywhichevent(SW_TRIGGER林俊杰哥哥林俊峰,timer在松花江上,SYC_A,SYC_B,etc痴心不改 金池.)will

triggertheCOEF_SYCevent

heCOEF_SYCeventoccurs,theGC1115copies×CACEL_LEGTHvaluesfromshadowRAM

tothecancelerRAMsselectedbytheRESOURCE_eachinternalclockcycle微电影,one

shadowRAMvalueiscopiedsimultaneouslytothecancelerRAMsenabledbytheircorresponding

RESOURCE_alcancelerRAMcopytimedependsonCACEL_LEGTHandonthetime

spentwaitingfortheselectedRAMstobecomeidle星座书上 歌词,notonhowmanycancelerRAMsareenabledfor

updateintheRESOURCE_MASKregister单边耳机.

heGC1115hascopied×CACEL_LEGTHvaluesfromshadowRAMtocancelerRAM,the

microprocessororDSPcanoptionallybeinterrupted叔叔我们不约,ifbit6ofIT_MASKwassetpriortoStep.

Alternately水浒传25集,bit6ofIT_MAPcanbepolledtodeterminewhentheshadowRAMcopycompletes歌手2017第二期.

OncetheshadowRAMhasbeeninitialized,theprocessofcopyingtheshadowRAMvaluestothecanceler

mple,assuminganI_CLKfrequencyof61.44MHz()碎心石谢军,a

GC1115-internalclockrateof4×61.44MHz(4绣红旗歌谱.1ns)你我都是傻瓜,andaCACEL_LEGTHof87万万没想到 西游篇,theGC1115onlyrequires

×87×4镜音铃图片.1ns=1勉强歌词.07µstoinitializeallRESOURCE_MASK-enabledcancelerRAMs,assumingallcancelersto

beupdatedwereidlewhentheCACEL_SYCtriggeroccurred.

CACEL_LEGTHand

CACEL_DELAY

InmanyGC1115applicati,asymmetricsetofcancellationcoefficientsischosentomatchasymmetriccarrier

configuration(terfrequenciesofthecarrierconfigurationaresymmetricaboutDC).Whencancellation

coefficientsaresymmetric韩剧女人的香气,thedelayintroducedbyacancellationpulsewithcoefficientsis/2苦咖啡汤潮,orhalfthe

berofsamplesbetweenthefirstcoefficientandthelargestcoefficient

determinesCACEL_helargestcoefficientofsymmetricfiltersisusuallyatthemidpointofthe

filter热狗diss,thedelayishalfthefilterlength寂寞歌词.

Figure9illustratesatypical,symmetricFIRfilterimpulserespe,whoselargestcoefficientisattap50,atthe

midpointofthe99-coefficientfilter.

24

元器件交易网

GC1115

SLWS144–FEBRUARY2005

lSymmetricCancelPulseImpulseRespe许冠杰经典歌曲,CACEL_DELAY=50

Itispossible,however,togeneratecancellationpulseswhoselargestcoefficientislessthanCA-

CEL_LEGTH/ncellationpulsesare

m-phasecancellation

10illustratestheimpulserespeofaminimum

thatthelargestmagnitudecoefficient(tap7)issignificantlyclosertotap1than

tothemiddlecoefficient(tap25).TheGC1115canuseeithernon-minimumphaseorminimumphase

-minimumphasefilterisbeingused,CACEL_DELAY=CACEL_LEGTH/

minimumphasefilterisbeingused王庆爽简历,CACEL_DELAY

properlyinitializedtocompensateforthecancellationpulsedelay.

mPhaseCancelPulseImpulseRespe,CACEL_DELAY=7

Software

Timer

TheGC1115providesaflexible,user-controlledsoftwaretimerthatcanserveasaprogrammable

eriscontrolledthroughtheTIMER_SYCregister,whichallowsuserstoselect

enablingthetimertostart(viatheTIMER_CTLregister)revive仓木麻衣,theuser

specifiesatimerperiodusingtheTIMER_HI_RSTandTIMER_LO_erisdecrementedwith

eachinternalclockedge(normallyatafrequencyof4xI_CLK).WhentheTIMER_SYCeventoccurs太极24,the

timercopiesthe2-bitvaluescontainedinTIMER_HI_RSTandTIMER_LO_RSTintoaGC1115-internal2-bit

2-bittimeristhendecrementedwitheachinternalchipclock(normallychipclock=4x

I_CLK).Whenthetimerreacheszero,thetimerisre-loadedfromTIMER_HI_RSTandTIMER_LO_RST

(periodictimerevent)谭俊颖,orthetimerisdisabled(forone-timetimerevents)the rose歌词.Bit15oftheTIMER_SYCregister

determinesthetimermode(periodicorone-time)后座剧场.

25

元器件交易网

GC1115

SLWS144–FEBRUARY2005

ThemicroprocessororDSPcanbeinterruptedwhenthetimerexpiresbysettingbit4ofIT_

expectedthatsoftware-initiatedtimerstartoperationwillmostoftenbeusedinone-timemode(andnotperiodic

mode)加油歌词,thusgivingthemicroprocessororDSPtimetomonitoraGC1115event我愿为你放下全部此生让我来渡,suchasreadingthesnapshot

RAMcontents.

SignalGeneratorandCRCGenerator

TheGC1115contanal

generatorcapabilityisusefulwhendebuggingaboardcontainingaGC1115,ortodebugtheGC1115itself.

Whenenabled,nalgeneratorcanbe

configuredtogenerateoneofseveraltypesofsignals:

•ADClevel

•Asawtoothwaveform

•Apseudo-LFSRwaveformwithPARofapproximately10dB

ThesignalgeneratorisconfiguredusingtheSIG_GE_CTL酒井法子资料,SIG_GE_BASE爱我还是他歌词,andSIG_GE_ICregisters.

ThesignalgeneratorperiodisdeterminedbySIG_GE_CTL,SIG_GE_BASE心理情景剧剧本,SIG_GE_ICghost town,and

SIG_GE_mode稍息立正站好舞蹈视频,theLFSRgeneratorandtheCRCgeneratorsareresetwhenevera

SIG_GE_etheGC1115pipelinemustcontainpredictableinformation,the

minimumSIG_GE_SYCperiodshouldbeatleast1000I_CLKperiods高清mv免费下载.

TheGC1115alsocontainsacyclicredundancycheck(CRC)generatorreceivesitsinput

CRCgeneratorcanalsobefedusinguser-provideddataonInputPortAandB,andbysettingSIG_GE_CTLto

erationusingsawtoothorLFSRdataprovidesapredictable,periodicwaytodetermineproper

internalGC1115operation越策越开心下载,attheLFSRsequenceisnot

bandlimited密码疑云主题曲,butthedistributionofitsmagnitudesisGaussian雨下一整晚 歌词.

ContactTItoreceiveanappropriatesetofCRCinitializationandtestparameters刘依朵.

SnapshotRAM

Operation

TheGC1115containstwoindependent,identicallyoperatingsnapshotRAMsforsignalcaptureandhistogram

pshotRAMsoperateinoneofthreemodes:

•ooperation(OFF)

•Capturemode(RAMisconfiguredasa2k×16-bitmemory,withIandQsamplesinterleaved)

•Histogrammode(RAMisconfiguredwithevenaddressesstoringthe16MSBs茜薇,andoddaddressesstoring

the16LSBs灵魂的共鸣歌词,of2-bitcounters)

TheseRAMscancaptureorhistogramsamplestreamsatfiveindependentlocatiwithintheGC1115:

•AttheGC1115’sinput(afterthedecimatorandpriortoStage1)

•AfterPDCStage1

•AfterPDCStage2

•AfterPDCStage

•AfterPDCStage4

Incapturemode天亮前说晚安,the16MSBsofeach18-bitsamplearestoredinthesnapshotRAMasfollows:

ADDRESS

i=0,2,4张信哲 说谎,…

j=1许永生,邓鸣璐,5神探加杰特音乐,…

VALUE

I[17:2](sixteenMSBsof18-bitIvalue)

Q[17:2](sixteenMSBsof18-bitQvalue)

Inhistogrammode周杰伦空,eachsnapshotRAMmonitorstheoutputofafunctiongeneratorthatgeneratesoneofthe

followinaluesfromitsI&Qsourcesamples:

•Isample

•Qsample

•Magnitudesquared(I*I+Q*Q)

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Thearithmeticprocessingofsamplesinhistogrammodeiownin

,theuser-selectedfunction

ofthecomplexinputsampleI+,thecalculatedvalueiscomparedtoSAP_MIVAL

andSAP_alculatedvalueisnotwithinthedesiredrange泰国好声音,nofurtheractionoccursforthis

alculatedvalueiswithinthedesiredrange广场舞光芒分解动作,thenSAP_MIVALissubtractedfromthecalculated

value我是山东,andtheresultismultipliedbySAP_SCALEtogeneratea10-bithistogramindex(between0and102)方皓玟好听的歌.

Letusciderahistogramexampleinwhichusersareinterestedinmonitoringthepowerofsamplesabovethe

averagepower(tocalculateCCDF自然主义,forinstance)京剧娄山关.Assumethattheaveragepowercorrespondsto16-bitsamples

withmag-squaredvaluesof2×(

2

),or2×10

8

.For16-bitsamples,thelargestpossiblemag-squaredvalue

is2×2767

2

=2vogel im kafig.14x10

9

.TheGC1115removesthelower16bitsfromeach2-bitmag-squaredvaluesgoaway,sothat

tialvaluesforSAP_MIVAL,

SAP_MAXVAL自导自演 周杰伦,andSAP_SCALEarecalculatedasfollows:

•SAP_MIVAL=052(2×[

2

]/2

16

)

•SAP_MAXVAL=2767(2×[2767

2

]/2

16

)

•SAP_SCALE=1024/(2767–052)=0.0446(=1129asasigned16-bitinteger)

Ifuserswantedtomonitortheinputsignalfor0seconds(about1快乐老家 陈明.8×10

9

samples–plentyofstatistical

significance),SAP_HISTCOUT=(1我的眼泪是你看不见的伤心.8×10

9

/6556).

SAP_MAXVALSAP_SCALE

I

Q

18

Function

Generator

(I,Q有故事的人,mag^2)

16

16

min&max

rangecheck

16

SAP_MIVAL

−

16

x

10

18

HISTOGRAM

IDEX

10

Histogrambin

update

(fetchbincount,

increment,

storeinc’dcount)

Histogrambins

(1kx2bits)

otRAMHistogramOperation

•

•

•

SAP_MIVAL:minimumvalueofinterest(-2768董赫男..+2767)

SAP_MAXVAL:maximumvalueofinterest(-2768.旭日阳刚 回家.+2767)

SAP_SCALE:a16-bitmultiplierthatscalesthe16-bit(value–SAP_MIVAL)intothe10-bitrange

0.落跑甜心的主题曲.102快乐的人请鼓掌.

if((funcGen[i]>=SAP_MIVAL)&&(funcGen[i]<=SAP_MAXVAL)){

j=funcGen[i]SAP_MIVAL;

index=int(j*SAP_SCALE);

index&=0xFF;

hist[index]++

}

InCpseudo-code,theGC1115histogramindexcalculationandbinupdateisperformedasfollows:

Theminimumhistogramindexwillneverbelessthan0从此不再一个人,whilethemaximumhistogramindexshouldnever

P_MIVALandSAP_MAXVALvaluesallowGC1115userstobracketspecificsample

rangesofinterest,P_SCALEmultiplierthenmapstherange

ofinterestintotheavailablehistogrambins(0my melody下载.世界上唯一的花.102).

Inhistogrammode宁哥,theGC1115snapshotRAMscollectstatisticsonthefrequencyofoccurrenceofcertain

heGC1115containstwosnapshotRAMs,thesestatisticscanbe

usedtosimultaneouslymonitorthesignalattwodifferentstagesofprocessing(suchasattheinputandatthe

output)augustrush.Afteratime玖月奇迹歌曲,thehistogramsstoredinRAMAandRAMBarereadbythemicroprocessororDSP,which

allowsderivedvalues(suchasCCDF)tobeobtainedfromthehistogrambincounts.

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SnapshotRAMscanbeindividuallycleared(riessettozero)viacontrolbitsinthe

SAP_A_COTROLandSAP_B_otRAMsmustbeclearedpriortohistogram

processinginordertozeroallhistogramcounts.

Table1beresses

inTable1arethosethatappearintheSAP_A_ADDRESSorSAP_B_ADDRESSregisters.

otRAMAddressinginCaptureandHistogramModes

MODE

Capture

ADDRESS

0

1

2

八三夭阿璞.luv letter..

2046

2047

Histogram0

1

2

.郑进一.翻牌机游戏.

2046

2047

(1)

COTETS

I[0]

(1)

Q[0]

(1)

I[1]

(1)

Q[1]

(1)

.离岛特警主题曲..

I[102]

(1)

Q[102]

(1)

HIST_MSW[0]

HIST_LSW[0]

HIST_MSW[1]

HIST_LSW[1]

games.春天的故事歌词.可惜不是你 吉他谱.

HIST_MSW[102]

HIST_LSW[102]

Incapturemode威莱音响,=mostsignificantword(upper

16bits),LSW=leastsignificantword(lower16bits)

TheSAP_ADDRESSregistersautoincrementwitheachSAP_toincrementingcanresult

1115resolvesthisaddressoverflow

conditionbyresettingtheSAP_ADDRESSregistertozeroifanautoincrementgeneratesanaddressvalue

greaterthan2047.

InputDecimator

Whentheinputsignalishighlyoversampled有没有那么一首歌下载,theGC1115usermaywanttodecimatethecomplexinputstream

ostconditi,

decimatinganinputsignalwillresultindecreasedperformancebecausethehigher com,non-decimatedsamplingrate

r可乐优品app下载,iftheGC1115isunabletoaccepttheoriginalinputsamplingratecounting,

1115userswantingtousethe2xdecimatiettingsmustbe

awareofdecimation’refertotheOperatingModessectionofthis

documentfordetailsabouthowDECIMATE=2affectsGC1115operation花中君子艳而香.

Interpolation

Operation

TheGC1115containsaninterpolatorstageafterthefourth(final)terpolatitagecanbe

erpolatitagealsoprovidesthefollowingoptional

capability:

•Interpolateby2郑仁,realoutput,fs/4modulationattheupsampledsamplingrate

•Interpolateby2李健的歌曲,complexoutput

•Interpolateby4离开你我哭了,realoutput美人鱼社区在线观看,fs/4modulationattheupsampledsamplingrate

nterp-by-4coefficientsarestoredat

einterpolate-by-4stageisbypassed,theGC1115requirestheinterp-by-4

coefficientowninTable14(thesearethedefaultinterp-by-4valuesafteraGC1115RESET):

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olate-by-4BypassCoefficients

ADDRESSRAGE

0x82–0x85

0x86–0x89

0x8A–0x8D

0x8E–0x91

0x92–0x95

0x96–0x99

0x9A–0x9D

0x9E–0xA1

0xA2–0xA5

0xA6–0xA9

ITERP-BY-4COEFFICIETS

0x8000天涯赤子心全集,0,0,0

0,0希亚,0,0

0女人们你们听好歌词,0i am lonely,0经过,0

0,0女法老哈特谢普苏特,0,0

0杰奎琳杜普雷,0,0周杰伦 跨时代,0

0卢巧音,0,0,0

0,0指人儿乐队,0,0

0,0为了谁简谱,0,0

0,0,0,0

0黄宏小品全集,0,0,0

Whentheinterpolate-by-4stageisactive,theGC1115requirestheinterp-by-4coefficientowninTable15:

olate-by-42xand4xInterpolationCoefficients

ADDRESSRAGE

0x82–0x85

0x86–0x89

0x8A–0x8D

0x8E–0x91

0x92–0x95

0x96–0x99

0x9A–0x9D

0x9E–0xA1

0xA2–0xA5

0xA6–0xA9

ITERP-BY-4COEFFICIETS

0,-4美丽中国走起来,-21,-5

0,122苏荷音乐,287,19

0,-700,-1401我会好好的 歌词,-172

0,万回的亲吻,4781矢野浩二老婆到底是谁,4558

0免费网页模板,-8970好日子的歌词,-,-2920

-2768三国盛世,-2920谁明浪子心 合唱,-,-8970

0,4558霍尊 离人,年春节戏曲晚会,2519

0快乐女声黄英,-172,-1401幼儿音乐,-700

0,19,287,122

0蔡依林 玩爱之徒,-5,-21,-4

Whentheinterp-by-4stageoperatesinrealoutputmode(omplexoutputmode)hudie,italsomodulatesthe

input(baseband)mple,ifI_CLKis61dmax2010视频教程.44Msamp/sec,interp-by-2

realmodewouldraisethesamplingrateto122.88Msamp/sec(realsamples)andtheinterpolatedoutputsignal

wouldbecenteredat122彩虹冰淇淋.88/4=0张强 歌手.72MHzaftertheinterpolate-by-4stage飞儿乐队主唱分手.

Iftheinterpolatedoutputsamplingrateexceeds10Msamp/sec,theoutputportsmustbeconfiguredin

odd//evenmode不为失恋说抱歉,successivesamplesaredemultiplexedbetweenOUT_AandOUT_Bports,

effectivelyloweringthesamplingrateoneachoutputportbyafactorof2当我孤独的时候还可以抱着你.

SoftLimiter

Operation

OTE:

Undernearlyalloperatingconditi,theGC1115SoftLimitercansafelybe

tLimiter

isonlyrequiredforoutputPARlevelsbelow6dBasdf,whenPDCcancelerresourcesmay

r,atPARlevelsbelow6dBdj粗口,thecEVMandPCDE

levelsarealsolikelytobeoutofspecsour,eveniftheSoftLimiterisenabled情话微微甜.

tlimiterprovidesafinalcheckof

theoutputsamplesvaluesafterallfourPDCstages,canoptionallyapplyauser-specified,multiplicative

abled,thesoftlimiterlimitstheoutputsamplestothe

SOFT_aboveSOFT_TSQDareadjustedoversamples见鬼,whereis

specifiedbythe2LSBsinSOFT_aluesforare5钢铁是眼泪炼成的,9吴鑫桐,17,softlimiterlengths

providemoregradualroll-offsandthusprovidesmallerACLRincreaseswhenthesoftlimiterisactivejingdianlaoge.

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Auser-specified天使们的戏曲,normalizedtapertable(maximumof16tableentries)

tapertableentriesarereadtwice:onceintheforwarddirection阿牛 桃花朵朵开,er

tableisalwaysusedstartingatSOFT_COEF0.

Theinversegaintable(2entries)worksinconjunctionwiththeSOFT_TAB_esoftlimiter

blockfindsanover-thresholdpeak,itcalculatesthedifferencebetweenthepeak’smag-squaredvalueandthe

SOFT_TSQDthreshold,andthenshiftsthedifferencetotherightbySOFT_TAB_ulting

valueshouldalwaysbebetween0and1批量下载mp,asthiiftedvalueisusedastheindexintotheinversegainlookup

caledindexisgreaterthan1对不起我爱你歌词,ersegainlookup

isappliedtothetapertableand(withabitofextramath),thescaledtapertablevaluesareappliedtotheinput

hissoftlimiterprocessingthe offspring,theover-thresholdpeak’samplitudeisreducedtoavaluethatisjust

belowtheSOFT_TSQDthreshold你是我的骄阳似火.

Inpseudo-code萱草花歌词,thesoftlimiterperformsthefollowingoperati:

//kistheindexofthecurrentsampleqq个人主页.

in_pwr=in_I[k]^2+in_Q[k]^2;

if(in_pwr>SOFT_TSQD){

//

//Thedifferencebetweenthecurrentover-thresholdsample’s

//powerandthethresholdpowerisameasureofhowmuch

//overthresholdthecurrentsampleis.

//

//Becausetheinversegainlookuptablehasonly2entries,we

//mustguaranteethatthelookuptableindexdoesnotexceed1きみにとどけ.

//

diff=in_pwr-SOFT_TSQD;

table_index=diff>>SOFT_TAB_SCALE;

if(table_index>1)

table_index=1;

//

//

//willusetheinversegaintoscalethenormalizedtaper

//coefficients(SOFT_COEFS)王芷嫣.

//

inverse_gain=SOFT_IVGAI[table_index];

//

//Scalethetaperedgainwiththeinversegain,andapply

//thetapered谭某某,scaledvaluestotheinputsamples

//

//isthenumberofsamplesinthetapercoefficienttable.

//

//Wewilltaper/2samplesBEFOREthepeakand/2samples

//AFTERthepeak.

//

j=k-(/2);

for(i=0;i<;i++,j++){

sampleGain=1-(inverse_gain*SOFT_COEF[i]);

sample[j]*=sampleGain;

}

}

OutputGainandOffsetOperation

TheGC1115includesoutputgainsOUT_GAI0andOUT_GAI1狐狸啊 你干啥呢,whichcanprovideuptoa4xincreaseinthe

outputsignal’_GAIregistersallowuserstoapplyasigned16-bitoutputgaintoboththeIand

Qoutputsamplestreamsjustpriortooutputformatting(roundingtotheuser-selectednumberofoutputbitsand

conversiontounsignedbinaryifrequested)暖味.

TheGC1115alsoimplementstwoorfourDCoffsetadjustments(whichareappliedaftertheOUT_GAI0and

OUT_GAI1adjustments)fortheIandQdatapaths,toadjustforDCoffsetsinquadraturemodulatorsthatmay

1115usersmustcalibratethetransmitpathto

determinetheappropriatevaluesfortheOUT_OFFSET_I0郑源沈丹丹,_Q0,_I1,and_eGC1115is

configuredforrealoutput,onlytheOUT_OFFSET_I0value最天使 胖哥哥,andtheOUT_OFFSET_I1valueifintwo-channel

mode,areused拯救.

Power

Measurement

TheGC1115canmeasuresignalpowerofacomplexI/QsignalatoneoftwolocatiintheGC1115datapath:

0

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GC1115

SLWS144–FEBRUARY2005

•

•

attheinputtoPDCStage1,and

attheoutputofPDCStage4

ThePOWER_CTLandPOWER_CTregistersconfiguretheGC1115tomeasurepoweratoneofthesetwo

alnumberofsamplesobservedduringpowermeasurementisPOWER_CT×

POWER_CTL[1:0]帝女花香夭.Afterpowermeasurementhascompleted有多少爱可以重来邓紫棋,theresultingaveragepowervalueisavailablein

thePOWERregister.

Thetotalnumberofsamplesusedforthepowercalculationistheproductofaninnerloopcount(determinedby

thePOWER_CTregister)andanouterloopcount(determinedbybits[1:0]ofPOWER_CTL):

POWER_CT

---------

0x1

0x

0x7

0xF

innerloopcount(#samples)

---------------------------

16

256

4096

6556

Theouterloopcountisspecifiedbythelower14bitsofthePOWER_CTLregister韦小力,butonlythemost-significant

"1"matters-theotherbitsareignored:

POWER_CTL[1:0]

---------------

1

2-

4-7

8-15

16-1

2-6

64-127

128-255

256-511

512-102

1024-2047

2048-4095

4096-8191

8192-168

outerloopcount(#samples)

----------------------------

1

2

4

8

16

2

64

128

256

512

1024

2048

4096

8192

Forexample,tocalculatetheaveragepoweroveraboutamilliamples黄手绢,theGC1115registerswouldbe

initializedasfollows:

POWER_CT=0xF(innerloopcount=6556)

POWER_CTL=0x10(outerloopcount=16)

Total#samplesusedtocalculatepower:16×6556=samples

Tosummarize忽悠花,theGC1115performsthefollowingstepsduringpowermeasurement:

18bitsIand18bitsQfromeachsampletocalculatea7-bitpowervalue

OTE:

Inputsamplesmustbeleft-justified,utsample’smostsignificantbitis

alwaysalignedtobit17(MSB)ofinputportsI_AandI_B乘胜追击粤语在线观看.

upper16bitsofeach7-bitpowervaluetoa40-bitpoweraccumulator

late=POWER_CT×POWER_CTL[1:0])samplepowers

hefinalaccumulatorvalueby4to18bitstocalculatetheaveragepoweroversamples,depending

onhowPOWER_CTandPOWER_1115doesthiifting(divideby)automatically.

ertheresulting16bitstothePOWERregister.

GC1115userswillalsoneedtosetthetwoMSBsofPOWER_CTLproperly,tospecifywhethertheinputor

outputpoweristobemeasuredeva破下载,and(intwo-channelconfiguration)thechannelnumber(channel0orchannel1)

whosepoweristobemeasuredmountains.

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High-SpeedRealOutput:Odd/EvenMode

Whentheoutputsamplingrateexceeds10MHz(whichmayoccurwhentheinterp-by-4blockisenabled)北京下雨了 歌词,the

gh-speedoutputmoderequiresthatthe

interp-by-4blockiseitherininterp-by-2,realoutputmode,orininterp-by-4忧郁童话,cial

high-speedoutputmodeisconfiguredusingbits[:2]ofIO_MODE(address0x9):IO_MODE[:2]=11hotcha.

OTE:

GC1115userouldonlyusetheodd/evenoutputmodewhentheoutput

pin-togglingrateonOUT_AandOUT_Bexceeds10MHz.

SYCHROIZATIO

Figure

12demtratesthevariousregisters倾城 许美静,inputandoutputpins蜜雪冰城主题曲歌词,andfunctionalblocksthatareinvolvedin

1115synchronizationinvolvesthreefunctional

areas:

•SYCsources

•SYC’dfunctionalblocks,and

•SYCregisters

RefertoFigure12forthefollowingdiscussion那年春天下着雪.

SYCSources

TheGC1115usestwohardwareSYCsources(pins)假太阳,SYC_AandSYC__AorSYC_Beventsare

ehardwareSYCsourcesareactive-lowsignals同在蓝天下,theSYCtriggeroccursattherising

edge,Cisde-asserted斯卡布罗集市莎拉布莱曼.

TheGC1115hastwosoftwareSYCsources:SW__TRIGGERregister

generatesatriggersignalforeach“1”intheSW__TRIGGERhasindividualSYC

twareTIMERisageneral-purpose,2-bit

timerthatcontrolsthedurationofvariousevents复兴路上,suchasthenumberofsamplescapturedbyasnapshotRAM.

ThesoftwareTIMERcanbeconfigured(viabit15ofTIMER_SYC)eithertorunonceorperiodically乖乖儿歌网,resetting

erthesoftwaretimer’scountreacheszero(itis

acount-downtimer)absurdity,itgeneratesatimerSYCevent薛之谦 安和桥.

TwootherSYCsourcesareprovidedforcompleteness:EVER(ctionalblockwillneverbe

triggered)andALWAYS(ctionalblockwillbeupdatedassoonasitscorrespondingparameteris

updated)陈康明.Forsomefunctionalblocksthatarecomprisedofmultipleregisters(suchasthesnapshotRAMsorthe

cancellationcoefficients),theALWAYSstateisinvalid.

OTE:

Settingafunctionalblock’sSYCregistertoEVERisnotthesameasdisablingthe

functionalblock!

FunctionalBlocksandSYC

Registers

TheoperationofthirteenGC1115functionalblockscanbetriggeredbyoneoftheSYCsources:

•Thereceiveblock(GC1115input)[useonlySYC_AorSYC_B!]

•Thepipelinestages[useonlySYC_AorSYC_B!]

•Thedecimationfunction(toselectaparticularinputsamplephase)[useonlySYC_AorSYC_B!]

•Thesoftwaretimer

•ThePDCstagedelayvalues(CACEL_DELAYregisters)

•ThecancellationpulsecoefficientshadowRAM

•ThecancelerRAMallocationvariables(RESOURCE_CTregisters)

•Theinterpolate-by-4block[useonlySYC_AorSYC_B!]

•Theoutputgainregisters(OUT_GAI0andOUT_GAI1)

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•

•

•

•

TheSYC_OUTpin(fordebuggingorforsynchronizingmultiple

GC1115s)

Thesignalgeneratorfuncti

SnapshotRAMA

SnapshotRAMB

AowninTable16只愿为你守着约,SYCselectionregisterscontrolwhichSYCsourceisassignedtoeachfunctionalblock卢惠美.

Table16summarizestheSYCsourceselectionencoding,usingtheLSBsofeachSYCregister王全安个人资料.

gisterSourceSelection

SYCSELECTIO

EVER

SW_TRIGGER

TIMER

SYC_A

SYC_B

ALWAYS

(reserved)

(reserved)

SYCREGISTERVALUE

(LSBs)

0

1

2

4

5

6

7

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GC1115

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InputPins:

Microprocessor

write

SYC_ASYC_B

”EVER”

Timer

trigger

”ALWAYS”

SW_TRIGGERTIMER

SYC

Sources

RCV_SYC

STAGE_SYC

DECIM_SYC

TIMER_SYC

DELAY_SYC

CACEL_SYC

RESOURCE_SYC

ITERP_SYC

OUTGAI_SYC

OUTPI_SYC

SIG_GE_SYC

SAP_A_SYC

SAP_B_SYC

ReceiveBlock

PipelineStageBlocks

DecimateBlock

SWTimerBlock

CancelDelayBlock

CancelCoefBlock

CancelResourceBlk

Interp−by−4Block

OUT_GAI0,1values

SYC_OUT_pin

SignalGen,CRCcontrol

SnapARAM

SnapBRAM

SYC

Registers

1115SynchronizationElements

Functional

Blocks

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REGISTERMAP

GlobalRegisters(Addresses0–

14)

RESET0x0Type:Read/WriteValueatRESET:0x00

TheRESETregisterprovidesseparatebitstoresettheGC1115registers李玉刚嫦娥,thedatapath,andthetwoPLLs.

lebitscanbesetduringeach

ETregisterisunclocked,_CLKdoesnothavetobetogglingto

changeRESET李圣杰新歌.

BITS

0

1

[:2]

4

5

[16:6]

ConfigurationReset

DatapathReset

Reserved

CORE_PLLReset

TX_PLLReset

Reserved

0=running

0=running

1=reset

1=reset

DESCRIPTIO

0=running

0=running

1=reset

1=reset

PLL_COTROL0x1Type:Read/WriteValueatRESET:0x0000

ThePLL_COTROLregisterprovidesseparatebitstocontroltheGC1115’

PLL_COTROLregisterisunclocked,_CLKdoesnothavetobetogglingtochange

PLL_COTROL.

Figure7demtrateshowthevariousbitsofthePLL_COTROLandCLK_COTROLregistersinteractto

determinevariousGC1115clockfrequencies.

BITS

[1:0]CorePLLControl:

00:PLL_CLL=I_CLK

10:Reserved

[7:2]

[9:8]

Reserved

TransmitPLLControl:

00:PLL_CLL=I_CLK

10:Reserved

[15:10]Reserved

01:PLL_CLK=2×I_CLK

11:PLL_CLK=4×I_CLK