可编程逻辑器件及其在dsp系统中的应用

16220026JournalofShandongInstituteofTechnologyVol.16.No.2Jun.,2002:100721857(2002)0120038204DSP,,(,255091):PLD(),DSP,PLDDSP,.,,,.:PLD;;EPM7128:TP33211:A:2002202227:(19752),,,,1,,,,.,,,.,PCB(PrintedCircuitBoard,),,(ASIC).,,ASIC,,.,(FPLD),PLD,,/,,.1PLDPLD(ProgrammableLogicDevice)80.PLD,.(FPGA)(CPLD).FPGACPLDASIC,ASIC,:(1).PLD.,PLD420,PLD(CPLDFPGA),,,.(2).PLD,;,PLD,,.,PLD,.(3).PLD,PLD,,,.(4).,.PLD,PCB,©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,.(5).PLD,.2CPLDDSPDSP(DigitalSignalProcessing,),,,,,,(ASIC),:1EPM7128SLC84-15Fig.1PindistributingofEPM128LS84215(1),,.,.(2),,.,.(3)DSP,,.(4),,.,ALTERAPLCC(CPLD:7128SLC84-15)..(1)2500.(2)128.(3)I/O84.(4),1.8.CPLDMAX+plus2.741648.,74164QSQH(274164)A,QSQH,CLK,QSQH,,QSQH,OUTPUTOQAOQH(2),OQAOQH,,CLK,,QAQHOQAOQH,CLK,,OQAOQH,in2pltch,2,G,,,,.:BCLRN,A,CLKG,CLK8,CLK,A,A7,A0,CLKA74164QAQH,CLK,G,74164QAQH8inpltch,CLK,G,(output)OQAOQH,8,OQAOQH.932:DSP©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.2Fig.2Elementarydiagram3Fig.3Timeorderdiagramcharacterofchippin3,,A,A7,117us311us,OQH;4.CPLDEPM7128SLC84-15,8,,(5),,,,EPM7128SLC84,EPM7128SLC84.,12,274164,12,,.042002©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.4Fig.4Pindefiningofchip5Fig.5User2definedmacrofunctionmodule3,,,AD,AD,AD,,CPLD,AD,,,.,,,.:[1].PLDEDA[M].,2000.[2],.PLD[M].:,2001.[3],,,,.[M].:,2001.[4],,.DSP[M].:,2001.CPLDanditsApplicationinDSPSystemZHUYong2qiang,WANGHui2lin,YIChui2jie(ShandongUniversityofTechnology,Zibo255012,China)Abstract:TechnologycharacterofPLDisdescribed.InDSPsystemselectinganddebuggingserialparallelex2changingdeviceisverydifficult.Inordertosolvethisproblem,thisarticlediscussesdesigninghighspeedserialin2putintoparalleloutputdevicewithPLD.Thismakesdesignvisibleandsimple.Elementarydiagram,timeorderdi2agramanddesignkeypointofnewserialparallelexchangingdevicearelaidoutinthispaperwithexample.Keywords:PLD;highspeedserialparallelexchange;EPM7128142:DSP©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.