Nheyo uye chiyero cheEMMC uye UFS zvigadzirwa

eMMC (Embedded Multi Media Card)inotora yakabatana MMC yakajairika interface, uye inofukidza yakakwirira-density NAND Flash uye MMC Controller muBGA chip.Zvinoenderana nehunhu hweFlash, chigadzirwa chakasanganisira Flash manejimendi tekinoroji, kusanganisira kuona kukanganisa uye kugadzirisa, flash avhareji kudzima uye kunyora, kwakaipa block management, simba-pasi kudzivirira uye humwe matekinoroji.Vashandisi havafanirwe kunetseka nezve shanduko mune iyo flash wafer process uye process mukati mechigadzirwa.Panguva imwecheteyo, iyo eMMC single chip inochengetedza yakawanda nzvimbo mukati mebhodhi reamai.

Zvichitaurwa zviri nyore, eMMC=Nand Flash+controller+standard package

Iyo yakazara dhizaini yeEMMC inoratidzwa mumufananidzo unotevera:

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eMMC inobatanidza Flash Controller mukati mayo kuti ipedze mabasa akadai sekudzima nekunyora kuenzana, kwakaipa block management, uye ECC verification, ichibvumira iyo Host side kuti itarise kune epamusoro-layer masevhisi, kubvisa kudiwa kwekukosha kwekugadziriswa kweNAND Flash.

eMMC ine zvinotevera zvakanakira:

1. Rerutsa dhizaini yendangariro yezvigadzirwa zvefoni mbozha.
2. The update speed inokurumidza.
3. Kurumidza kugadzirwa kwechigadzirwa.

eMMC standard

JEDD-JESD84-A441, yakaburitswa muna Chikumi 2011: v4.5 sekutsanangurwa kwazvinoitwa muEmbedded MultiMediaCard (e•MMC) Product Standard v4.5.JEDEC yakaburitsawo JESD84-B45: Embedded Multimedia Card e•MMC), chiyero chemagetsi cheEMMC v4.5 (version 4.5 devices) muna Chikumi 2011. Muna February 2015, JEDEC yakaburitsa vhezheni 5.1 yeMMC standard.

Mazhinji maserura epakati pepakati anoshandisa eMMC5.1 flash memory ine theoretical bandwidth ye600M/s.Iyo inoteedzana kuverenga kumhanya ndeye 250M/s, uye inoteedzana kunyora kumhanya i125M/s.

Chizvarwa chitsva cheUFS

UFS: Universal Flash Storage, tinogona kuiona seyemberi vhezheni yeEMMC, inova array yekuchengetedza module inoumbwa akawanda flash memory chips, master control, uye cache.UFS inogadzirisa kukanganisa kuti eMMC inongotsigira hafu-duplex kushanda (kuverenga nekunyora kunofanira kuitwa zvakasiyana), uye inokwanisa kuwana full-duplex operation, saka kushanda kunogona kupetwa kaviri.

UFS yakakamurwa kuita UFS 2.0 uye UFS 2.1 kare, uye miitiro yavanosungirwa yekuverenga nekunyora kumhanya ndeye HS-G2 (High speed GEAR2), uye HS-G3 ndeyekusarudza.Iwo maviri seti yezviyero anogona kumhanya mu1Lane (imwe-channel) kana 2Lane (mbiri-channel) modhi.Yakawanda sei kuverenga nekunyora kumhanya runhare mbozha runogona kuwana zvinoenderana neUFS flash memory standard uye huwandu hwemachaneli, pamwe nekugona kwe processor kushandisa UFS flash memory.Bhasi interface rutsigiro.

UFS 3.0 inotanga kutsanangurwa kweHS-G4, uye imwe-channel bandwidth inowedzera kusvika ku11.6Gbps, iyo inopeta kaviri kushanda kweHS-G3 (UFS 2.1).Sezvo UFS inotsigira maviri-channel bidirectional kuverenga nekunyora, iyo interface bandwidth yeUFS 3.0 inogona kusvika kusvika 23.2Gbps, inova 2.9GB/s.Pamusoro pezvo, UFS 3.0 inotsigira mamwe mapartitions (UFS 2.1 is 8), inovandudza kukanganisa kururamisa kuita uye inotsigira yazvino NAND Flash flash media.

Kuti isangane nezvinodiwa zve5G zvishandiso, UFS 3.1 ine 3 nguva yekunyora kumhanya kwechizvarwa chakapfuura che general-chinangwa chekuchengetedza flash.Iyo drive's 1,200 megabytes pasekondi (MB/s) kumhanya inosimudzira kushanda kwepamusoro uye inobatsira kudzivirira buffering uchirodha mafaera, zvichikubvumidza iwe kunakidzwa neiyo yakaderera-latency yekubatanidza ye5G munyika yakabatana.

Kumhanya kwekunyora kunosvika 1,200MB/s (kumhanya kwekunyora kunogona kusiyana nehukuru: 128 gigabytes (GB) kusvika 850MB/s, 256GB uye 512GB kusvika 1,200MB/s).

UFS inoshandiswawo mune yakasimba-state U disk, 2.5 SATA SSD, Msata SSD uye zvimwe zvigadzirwa, UFS inotsiva NAND Flash yekushandisa.

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Nguva yekutumira: May-20-2022