Lub koom haum PCI-SIG tau tshaj tawm cov lus tshaj tawm ntawm PCIe 6.0 specification tus qauv v1.0, tshaj tawm ua tiav.
Txuas ntxiv rau lub rooj sib tham, qhov bandwidth ceev txuas ntxiv mus ob npaug, mus txog 128GB / s (unidirectional) ntawm x16, thiab txij li PCIe thev naus laus zis tso cai rau cov ntaub ntawv duplex bidirectional ntws, tag nrho ob txoj kev nkag mus yog 256GB / s.Raws li txoj kev npaj, yuav muaj cov piv txwv coj mus muag 12 txog 18 lub hlis tom qab tshaj tawm cov qauv, uas yog hais txog 2023, yuav tsum nyob rau hauv lub server platform ua ntej.PCIe 6.0 yuav tuaj txog thaum kawg ntawm lub xyoo thaum ntxov, nrog bandwidth ntawm 256GB / s
Rov qab mus rau thev naus laus zis nws tus kheej, PCIe 6.0 tau suav tias yog qhov hloov pauv loj tshaj plaws hauv PCIe keeb kwm ze li 20 xyoo.Ua kom ncaj ncees, PCIe 4.0 / 5.0 yog qhov hloov pauv me me ntawm 3.0, xws li 128b / 130b encoding raws li NRZ (Non-Return-to-Xero).
PCIe 6.0 hloov mus rau PAM4 pulse AM signaling, 1B-1B coding, ib lub teeb liab tuaj yeem yog plaub qhov encoding (00/01/10/11), ob npaug rau yav dhau los, tso cai rau mus txog 30GHz zaus.Txawm li cas los xij, vim tias PAM4 teeb liab tsis yooj yim dua li NRZ, nws tau nruab nrog FEC rau pem hauv ntej kev ua yuam kev kho mechanism los kho cov teeb liab yuam kev hauv qhov txuas thiab xyuas kom meej cov ntaub ntawv.
Ntxiv rau PAM4 thiab FEC, qhov kawg thev naus laus zis tseem ceeb hauv PCIe 6.0 yog kev siv FLIT (Flow Control Unit) encoding ntawm qib kev xav.Qhov tseeb, PAM4, FLIT tsis yog lub thev naus laus zis tshiab, hauv 200G + ultra-high-speed Ethernet tau siv ntev, uas PAM4 ua tsis tau raws li kev txhawb nqa loj ntawm qhov laj thawj yog vim li cas cov txheej txheem lub cev raug nqi ntau dhau.
Ntxiv rau, PCIe 6.0 tseem rov qab sib xws.
PCIe 6.0 txuas ntxiv ua ob npaug ntawm I / O bandwidth rau 64GT / s raws li kev lig kev cai, uas yog siv rau qhov tseeb PCIe 6.0X1 unidirectional bandwidth ntawm 8GB / s, PCIe 6.0 × 16 unidirectional bandwidth ntawm 128GB / s, thiab pcie 6.0 × 16 bidirectional bandwidth ntawm 256GB / s.PCIe 4.0 x4 SSDS, uas tau siv dav niaj hnub no, tsuas yog xav tau PCIe 6.0 x1 los ua nws.
PCIe 6.0 yuav txuas ntxiv 128b / 130b encoding qhia hauv lub sijhawm ntawm PCIe 3.0.Ntxiv rau qhov qub CRC, nws yog qhov nthuav kom nco ntsoov tias cov txheej txheem channel tshiab kuj txhawb PAM-4 encoding siv hauv Ethernet thiab GDDR6x, hloov PCIe 5.0 NRZ.Ntau cov ntaub ntawv tuaj yeem ntim rau hauv ib qho channel hauv tib lub sijhawm, nrog rau cov ntaub ntawv tsis tshua muaj latency kho qhov yuam kev hu ua kev kho qhov yuam kev rau pem hauv ntej (FEC) los ua kom nce bandwidth ua tau thiab txhim khu kev qha.
Ntau tus neeg yuav nug, PCIe 3.0 bandwidth feem ntau tsis siv, PCIe 6.0 yog dab tsi siv?Vim tias qhov nce hauv cov ntaub ntawv tshaib plab, suav nrog kev txawj ntse txawj ntse, IO channels nrog kev sib kis ceev tau nce zuj zus los ua qhov kev xav tau ntawm cov neeg siv khoom hauv kev lag luam kev lag luam, thiab cov bandwidth siab ntawm PCIe 6.0 thev naus laus zis tuaj yeem qhib tag nrho cov kev ua tau zoo ntawm cov khoom uas xav tau siab IO. bandwidth suav nrog accelerators, tshuab kev kawm thiab HPC daim ntawv thov.PCI-SIG tseem vam tias yuav tau txais txiaj ntsig los ntawm kev lag luam tsheb loj zuj zus, uas yog qhov chaw kub kub rau cov khoom siv hluav taws xob, thiab PCI-Special Interest Group tau tsim ib pab pawg tshiab PCIe Technology ua haujlwm los tsom rau yuav ua li cas nce kev saws ntawm PCIe thev naus laus zis hauv tsheb. kev lag luam, raws li ecosystem qhov xav tau ntau ntxiv rau bandwidth yog pom tseeb.Txawm li cas los xij, raws li microprocessor, GPU, IO ntaus ntawv thiab cov ntaub ntawv khaws cia tuaj yeem txuas nrog cov ntaub ntawv channel, PC kom tau txais kev txhawb nqa ntawm PCIe 6.0 interface, cov tuam txhab motherboard yuav tsum tau ceev faj ntxiv txhawm rau npaj cov kab hluav taws xob uas tuaj yeem tswj cov teeb liab ceev, thiab cov tuam txhab chipset kuj yuav tsum tau ua cov kev npaj tsim nyog.Intel tus kws tshaj lij tsis kam hais tias thaum twg PCIe 6.0 kev txhawb nqa yuav raug ntxiv rau cov khoom siv, tab sis tau lees paub tias cov neeg siv khoom Alder Lake thiab server sab Sapphire Rapids thiab Ponte Vecchio yuav txhawb nqa PCIe 5.0.NVIDIA kuj tsis kam hais tias thaum twg PCIe 6.0 yuav raug qhia.Txawm li cas los xij, BlueField-3 Dpus rau cov chaw zov me nyuam twb txhawb PCIe 5.0;PCIe Spec tsuas yog qhia txog kev ua haujlwm, kev ua tau zoo, thiab cov kev txwv uas yuav tsum tau ua ntawm lub cev txheej, tab sis tsis qhia meej tias yuav siv li cas.Hauv lwm lo lus, cov tuam ntxhab tuaj yeem tsim cov qauv txheej txheem ntawm PCIe raws li lawv tus kheej xav tau thiab cov xwm txheej tiag tiag los xyuas kom meej ua haujlwm!Cable manufacturers tuaj yeem ua si ntau qhov chaw!
Post lub sij hawm: Jul-04-2023
