Nhanganyaya kune PCIe 5.0 specifications

• Nhanganyaya kune PCIe 5.0 specifications

Magadzirirwo ePCIe 4.0 akapedzwa muna 2017, asi haana kutsigirwa nemapuratifomu evatengi kusvika AMD's 7nm Rydragon 3000 series, uye kare zvigadzirwa zvakaita se supercomputing, enterprise-class high-speed storage, uye network devices chete zvaishandisa PCIe 4.0 tekinoroji. Kunyangwe tekinoroji yePCIe 4.0 isati yashandiswa zvakanyanya, sangano rePCI-SIG rave richigadzira PCIe 5.0 inokurumidza kwenguva refu, signal rate yakapetwa kaviri kubva pa16GT/s iripo kusvika pa32GT/s, bandwidth inogona kusvika 128GB/s, uye vhezheni ye0.9/1.0 specification yapedzwa. v0.7 vhezheni yePCIe 6.0 standard text yakatumirwa kunhengo, uye kugadzirwa kwestandard kuri kufamba zvakanaka. PIN rate yePCIe 6.0 yakawedzerwa kusvika pa64 GT/s, inova ka8 kupfuura PCIe 3.0, uye bandwidth mu x16 channels inogona kukura kupfuura 256GB/s. Nemamwe mashoko, kumhanya kwazvino kwePCIe 3.0 x8 kunoda chiteshi chimwe chete chePCIe 6.0 kuti chibudirire. Kana tichitaura nezve v0.7, PCIe 6.0 yakawana zvakawanda zvezvinhu zvakaziviswa pakutanga, asi kushandiswa kwesimba kuchiri kuwedzera.d, uye standard yatanga kushandisa giya reL0p power configuration. Ehe, mushure mekuziviswa muna 2021, PCIe 6.0 inogona kuwanikwa mumusika muna 2023 kana 2024 nekukurumidza. Semuenzaniso, PCIe 5.0 yakatenderwa muna 2019, uye ikozvino ndipo pava nenyaya dzekushandisa.

Zvichienzaniswa nezvakajairwa kare, PCIe 4.0 yakanonoka kusvika. PCIe 3.0 yakatangwa muna 2010, makore manomwe mushure mekutangwa kwePCIe 4.0, saka hupenyu hwePCIe 4.0 specifications hunogona kunge hupfupi. Kunyanya, vamwe vatengesi vakatanga kugadzira PCIe 5.0 PHY physical layer devices.

Sangano rePCI-SIG rinotarisira kuti zviyero zviviri izvi zvigare pamwe chete kwenguva yakati, uye PCIe 5.0 inonyanya kushandiswa pamidziyo inoshanda zvakanyanya ine zvinodiwa zvakanyanya zvekushandisa, zvakaita seGpus yeAI, zvishandiso zvenetwork, nezvimwewo, zvinoreva kuti PCIe 5.0 inogona kuonekwa munzvimbo dzedata, network, uye HPC. Midziyo ine zvinodiwa zvishoma zvebandwidth, senge desktops, inogona kushandisa PCIe 4.0.

PaPCIe 5.0, mwero wechiratidzo wakawedzerwa kubva paPCIe 4.0's 16GT/s kusvika pa32GT/s, zvichiri kushandiswa 128/130 encoding, uye x16 bandwidth yakawedzerwa kubva pa64GB/s kusvika pa128GB/s.

Pamusoro pekupeta kaviri bandwidth, PCIe 5.0 inounza dzimwe shanduko, ichichinja dhizaini yemagetsi kuti ivandudze kusimba kwechiratidzo, kufambirana kumashure nePCIe, nezvimwewo. Pamusoro pezvo, PCIe 5.0 yakagadzirwa nematanho matsva anoderedza kunonoka uye kudzikira kwechiratidzo padaro refu.

Sangano rePCI-SIG rinotarisira kupedzisa 1.0 vhezheni yezvinodiwa mukota yekutanga gore rino, asi vanogona kugadzira mwero, asi havagone kudzora kuti mudziyo wekupedzisira uchaunzwa riini kumusika, uye zvinotarisirwa kuti michina yekutanga yePCIe 5.0 ichatanga kushanda gore rino, uye zvimwe zvigadzirwa zvichaonekwa muna 2020. Zvisinei, kudiwa kwekumhanya kwakanyanya kwakaita kuti muviri wemazuva ano usarudze chizvarwa chinotevera chePCI Express. Chinangwa chePCIe 5.0 ndechekuwedzera kumhanya kwemwero munguva pfupi inogoneka. Saka, PCIe 5.0 yakagadzirirwa kungowedzera kumhanya kusvika pamwero wePCIe 4.0 pasina zvimwe zvinhu zvitsva zvakakosha.

Semuenzaniso, PCIe 5.0 haitsigire zviratidzo zvePAM 4 uye inongosanganisira zvinhu zvitsva zvinodiwa kuti PCIe standard ikwanise kutsigira 32 GT/s munguva pfupi inogoneka.

Matambudziko emidziyo yemagetsi

Dambudziko guru pakugadzirira chigadzirwa chinotsigira PCI Express 5.0 richave rakabatana nehurefu hwechiteshi. Kana signal ikakurumidza, frequency yekutakura chiratidzo inotumirwa kuburikidza nePC board inowedzera. Mhando mbiri dzekukuvadzwa kwemuviri dzinoganhurira mwero wekuti mainjiniya anogona kuparadzira masaini ePCIe:

· 1. Kudzikira kwechiteshi

· 2. Kufungisisa kunoitika muchiteshi nekuda kwekusagadzikana kweimpedance mumapini, maconnector, maburi ekupinda nepakati nezvimwe zvivakwa.

PCIe 5.0 specification inoshandisa nzira dzine -36dB attenuation pa16 GHz. Frequency ye16 GHz inomiririra Nyquist frequency ye32 GT/s digital signals. Semuenzaniso, kana PCIe5.0 signal yatanga, inogona kunge iine peak-to-peak voltage ye800 mV. Zvisinei, mushure mekupfuura nepakati pe -36dB channel inokurudzirwa, chero kufanana neziso rakavhurika kunorasika. Nekushandisa transmitter based equalization (de-accentuating) uye receiver equalization (musanganiswa weCTLE neDFE) chete ndipo panogona kuti PCIe5.0 signal ipfuure nepakati pesystem channel uye idudzirwe nemazvo nereceiver. Kureba kudiki kunotarisirwa kwemaziso ePCIe 5.0 signal i10mV (post-equalization). Kunyangwe ne transmitter yakaderera, attenuation yakakosha yechannel inoderedza amplitude yesignal kusvika padanho rekuti chero rumwe rudzi rwekukuvara kwesignal kunokonzerwa ne reflection uye crosstalk inogona kuvharwa kuti ziso ridzorerwe.