Nhanganyaya kuPCIe 5.0 zvakatemwa

• Nhanganyaya kuPCIe 5.0 zvakatemwa

Iyo PCIe 4.0 yakatarwa yakapedzwa muna 2017, asi haina kutsigirwa nemapuratifomu evatengi kusvika AMD's 7nm Rydragon 3000 akatevedzana, uye aimbove zvigadzirwa zvakaita seye supercomputing, bhizinesi-kirasi yepamusoro-kumhanya kuchengetedza, uye network zvishandiso zvakashandiswa PCIe 4.0 tekinoroji.Kunyange zvazvo teknolojia yePCIe 4.0 isati yashandiswa pamwero mukuru, sangano rePCI-SIG ragara richigadzira PCIe 5.0 inokurumidza, chiyero chechiratidzo chakapetwa kaviri kubva pa16GT / s kusvika ku32GT / s, bandwidth inogona kusvika 128GB / s, uye iyo vhezheni 0.9/1.0 yakatarwa yapedzwa.v0.7 vhezheni yePCIe 6.0 yakajairwa mameseji yakatumirwa kunhengo, uye kuvandudzwa kwechiyero kuri munzira.Pini yepini yePCIe 6.0 yakawedzerwa kusvika 64 GT/s, inova 8 nguva iyo yePCIe 3.0, uye bandwidth mu x16 chiteshi inogona kuva yakakura kupfuura 256GB/s.Mune mamwe mazwi, iko zvino kumhanya kwePCIe 3.0 x8 inoda chete PCIe 6.0 chiteshi kuti uwane.Nezve v0.7 ine chekuita, PCIe 6.0 yakawana zvakawanda zvezvinhu zvakaziviswa pakutanga, asi mashandisiro emagetsi achiri kuwedzera kunatsiridza.d, uye chiyero chichangobva kuunza L0p simba rekugadzirisa giya.Ehe, mushure mekuzivisa muna 2021, PCIe 6.0 inogona kuwanikwa mune zvekutengesa muna 2023 kana 2024 pakutanga.Semuyenzaniso, PCIe 5.0 yakatenderwa muna 2019, uye pari zvino pave nemakesi ekunyorera.

Kuenzaniswa neyakapfuura chiyero yakatarwa, PCIe 4.0 yakatarwa yakauya yanonoka.PCIe 3.0 tsanangudzo dzakaunzwa muna 2010, makore manomwe mushure mekuiswa kwePCIe 4.0, saka hupenyu hwePCIe 4.0 hutsananguro hunogona kunge hupfupi.Kunyanya, vamwe vatengesi vatanga kugadzira PCIe 5.0 PHY yemuviri layer zvishandiso.

Sangano rePCI-SIG rinotarisira kuti zviyero zviviri izvi zvigare kwenguva yakati, uye PCIe 5.0 inonyanya kushandiswa kune zvigadzirwa zvepamusoro-soro zvine zvinodiwa zvepamusoro, seGpus yeAI, network network, zvichingodaro, zvinoreva kuti PCIe 5.0 ndiyo. zvakanyanya kuoneka munzvimbo yedata, network, uye HPC nharaunda.Midziyo ine zvishoma bandwidth zvinodiwa, senge desktops, inogona kushandisa PCIe 4.0.

PaPCIe 5.0, chiyero chechiratidzo chakawedzerwa kubva kuPCIe 4.0's 16GT/s kusvika ku32GT/s, ichiri kushandisa 128/130 encoding, uye x16 bandwidth yakawedzerwa kubva pa64GB/s kuenda ku128GB/s.

Pamusoro pekupeta kaviri bandwidth, PCIe 5.0 inounza dzimwe shanduko, kushandura dhizaini yemagetsi kuti ivandudze kutendeseka kwechiratidzo, kumashure kuenderana nePCIe, nezvimwe.Uye zvakare, PCIe 5.0 yakagadzirwa nemayero matsva anoderedza latency uye chiratidzo chekumisikidza pamusoro pemadaro marefu.

Sangano rePCI-SIG rinotarisira kupedzisa 1.0 vhezheni yezvakatsanangurwa muQ1 gore rino, asi vanogona kuvandudza zviyero, asi havagone kutonga kana mudziyo wekupedzisira waunzwa kumusika, uye zvinotarisirwa kuti yekutanga PCIe 5.0 zvishandiso zvichatanga gore rino, uye zvimwe zvigadzirwa zvichaonekwa muna 2020. Zvisinei, kudiwa kwekumhanya kwepamusoro kwakakurudzira muviri wepamusoro kuti utsanangure chizvarwa chinotevera chePCI Express.Chinangwa chePCIe 5.0 ndechekuwedzera kumhanya kweiyo chiyero munguva pfupi pfupi inokwanisika.Naizvozvo, PCIe 5.0 yakagadzirirwa kungo wedzera kumhanya kuPCIe 4.0 yakajairwa pasina zvimwe zvakakosha zvitsva.

Semuyenzaniso, PCIe 5.0 haitsigire PAM 4 masiginecha uye inongosanganisira zvinhu zvitsva zvinodiwa kugonesa PCIe chiyero kutsigira 32 GT/s munguva ipfupi inobvira.

Hardware matambudziko

Dambudziko guru mukugadzirira chigadzirwa kutsigira PCI Express 5.0 ichave ine chekuita nehurefu hwechiteshi.Iyo inokurumidza chiyero chechiratidzo, iyo yakakwira iyo inotakura frequency yechiratidzo chinofambiswa kuburikidza nePC board.Mhando mbiri dzekukuvadzwa kwemuviri dzinodzika nhanho iyo mainjiniya anogona kuparadzira masaini ePCIe:

· 1. Attenuation of channel

· 2. Mafungidziro anoitika muchiteshi nekuda kweimpedance discontinuities mumapini, zvinobatanidza, kuburikidza-maburi uye zvimwe zvimiro.

Iyo PCIe 5.0 yakatarwa inoshandisa chiteshi chine -36dB attenuation pa16 GHz.Iyo frequency 16 GHz inomiririra iyo Nyquist frequency ye32 GT/s masaini edhijitari.Semuenzaniso, kana iyo PCIe5.0 chiratidzo ichitanga, inogona kunge iine yakajairika peak-to-peak voltage ye800 mV.Nekudaro, mushure mekupfuura neyakakurudzirwa -36dB chiteshi, chero yakafanana neziso rakavhurika inorasika.Chete nekushandisa transmitter yakavakirwa kuenzana (de-accentuating) uye inogamuchira yakaenzana (musanganiswa weCTLE neDFE) iyo PCIe5.0 siginecha inogona kupfuura nepakati system chiteshi uye kududzirwa nemazvo neanogamuchira.Iyo yakaderera inotarisirwa kureba kweziso kwePCIe 5.0 chiratidzo ndeye 10mV (post-equalization).Kunyangwe iine padhuze-yakakwana yakaderera-jitter transmitter, kwakakosha attenuation yechiteshi inoderedza iyo chiratidzo amplitude kusvika apo chero imwe mhando yekukuvara kwechiratidzo kunokonzerwa nekufungisisa uye crosstalk inogona kuvharwa kudzoreredza ziso.