NPAB Cortex A7 processor: nta thiab xyuas

ARM Cortex A7 . Nyob rau hauv no tsab xov xwm uas peb yuav tham txog NPAB Cortex A7 processor architecture. Semiconductor khoom raws li nws muaj peev xwm yuav nrhiav tau nyob rau hauv ntse tes, routers, ntsiav tshuaj PCs thiab lwm yam mobile pab kiag li lawm, qhov chaw uas nws yog kom txog thaum tsis ntev los no nyob rau hauv lub ua txoj hauj lwm nyob rau hauv no ua lag luam ya. Tam sim no nws yog maj hloov los ntawm ntau cov tshiab thiab tshiab processor daws teeb meem.

Nyuag ntaub ntawv hais txog lub tuam txhab NPAB

началась в 1990 году, когда она была основана Робином Саксби. Keeb kwm ntawm NPAB tuam txhab uas muag pib nyob rau hauv 1990, thaum nws twb nrhiav tau los ntawm Robin Saxby. Tib yam li lub hauv paus rau nws creation yog ib tug tshiab microprocessor architecture. , то после образования данной компании появилась достойная альтернатива в виде RISC. Ua ntej ntawd ib tug tseem ceeb txoj hauj lwm nyob rau hauv lub x 86 CPU ua lag luam nyob hauv los yog CISC, tom qab tsim ntawm lub tuam txhab nyob li ib tug tsim nyog lwm txoj rau RISC. Nyob rau hauv thawj cov ntaub ntawv, cov kev siv ntawm cov code twb txo mus rau 4 kauj ruam:

1. Kev npaj ntawm lub tshuab cov lus qhia.

2. Ua lub hloov dua siab tshiab microcode.

3. Muab micro-lus qhia.

4. Phased kev siv ntawm micro-lus qhia.

сновная же идея архитектуры RIS С состояла в том, что обработку программного кода можно свести к 2 этапам: Sic tib lub tswv yim RIS architecture muaj nyob rau hauv lub fact tias cov ua ntawm qhov kev pab cuam code yuav sau ua ke nyob rau hauv 2 theem:

1. RISC- инструкций. Kev npaj RISC- cov lus qhia.

2. RISC- инструкций. RISC- ua cov lus qhia.

ак в первом, так и во втором случае есть как плюсы, так и существенные недостатки. Ow nyob rau hauv thawj thiab nyob rau hauv lub thib ob cov ntaub ntawv, muaj ob zoo thiab tseem ceeb shortcomings. RISC ( в том числе и ARM Cortex A7 , представленная 2011 году) — рынок мобильных устройств. x 86 ntse yeej lub computer ua lag luam, thiab RISC (xws li caj NPAB Cortex A7, nkag tau rau hauv 2011) - kev ua lag luam rau mobile pab kiag li lawm.

Zaj dabneeg hauv lub Cortex A7 architecture. Ntsiab nta

Nyob rau hauv kev ua tau zoo "Cortex A8" raws li ib lub hauv paus rau "Cortex A7." Lub tswv yim yooj yim ntawm cov developers nyob rau hauv cov ntaub ntawv no yog los xyuas kom meej, kom tsim tau thiab ho txhim kho lub zog efficiency ntawm qhov kev daws teeb meem. . Hais tias yog dab tsi nws thiaj li tshwm sim, lub tuam txhab engineers NPAB. Ib qho tseem ceeb feature nyob rau hauv cov ntaub ntawv no yog hais tias muaj ib lub sij hawm los ua ib tug big.LITTLE CPU technology. Hais tias yog, tus semiconductor nti tej zaum yuav muaj ib tug xam unit 2. Ib tug ntawm lawv yog aimed ntawm kev daws cov feem ntau yooj yim paub tab nrog tsawg heev zog noj thiab, raws li ib tug txoj cai, nyob rau hauv no luag hauj lwm, thiab ua "Cortex A7" cov tub ntxhais. Qhov thib ob yog tsim los khiav feem ntau complex software thiab raws li lub xam units "Cortex A15" thiab "A17 Cortex". Teb "Cortex A7" twb hais, raws li tau hais ua ntej lawm, nyob rau hauv 2011. Zoo, tus thawj processor caj NPAB Cortex A7 pom ib lub teeb lub xyoos tom qab, piv txwv li nyob rau hauv 2012.

ntau lawm technology

Chiv, semiconductor-raws li cov khoom ua los ntawm A7 65 nm txheej txheem technology. Tam sim no qhov no technology yog hopelessly outdated. Nyob rau hauv lub neej yav tom ntej, nws twb tso tawm ob tiam A7 processors nkag qauv rau 40 nm thiab 32 nm. Tab sis tam sim no lawv tau ua sob. Qhov tseem tsis ntev los no CPU qauv raws li nyob rau hauv no architecture ua twb nyob rau cov nqi ntawm 28 nm, thiab hais tias lawv muaj peev xwm tseem yuav pom kev muag khoom. Ntxiv rau txoj kev hloov mus rau ib tug tshiab hauj dab rau cov kev cai tshiab ntawm kev txais neeg kawm thiab outdated architecture cia siab tias tsis yog nws muaj nqis. Tej daim raws li nyob rau hauv lub A7 yog tam sim no nyob los ntawm cov feem ntau nyiaj txiag ya ntawm lub lag luam ntawm mobile pab kiag li lawm thiab lawv yog maj hloov gadgets twb nyob rau lub hauv paus ntawm A53, uas yog yuav luag nyob rau tib lub zog tsis muaj ib tug ntau dua kev ua tau zoo theem.

Architecture microprocessor tub ntxhais

1, 2, 4 los yog 8 cores tej zaum yuav muaj nyob rau hauv lub CPU raws li NPAB Cortex A7. Cov yam ntxwv ntawm processors nyob rau hauv lub caij nyoog kawg no cov ntaub ntawv, qhia tau tias cov qauv ntawm cov nti no yeej tseem zoo 2 mus rau 4 pawg nucleus. 2-3, lub processor nkag-qib khoom raws li tej daim nrog 1 im los yog 2 computer modules. Qhov nruab nrab theem yuav siv sij hawm 4-tub ntxhais daws teeb meem. Zoo, tus hwm ya yog 8-tub ntxhais chips. Txhua microprocessor tub ntxhais raws li nyob rau hauv no architecture muaj xws li cov nram qab no modules:

• лок обработки чисел с плавающей запятой ( FPU). B xauv ua floating taw tes (FPU).

• Cache Theem 1.

• NEON для оптимизации работы ЦПУ. NEON tsev rau optimize cov CPU.

• ARMv7. ARMv7 xam module.

Muaj kuj yog cov nram qab no ntau yam rau tag nrho cov nuclei nyob rau hauv lub CPU:

• Cache L2.

• Nuclei Control tsev CoreSight.

• Cov ntaub ntawv los xyuas dua maub AMBA tsheb loj uas muaj lub ntsis ntawm 128 khoom.

tau zaus

Cov nqi siab tshaj plaws rau ib tug muab moos zaus ntawm microprocessor architecture tej zaum yuav txawv ntawm 600 MHz rau 3 GHz. Tsis tas li ntawd nco ntsoov hais tias qhov no parameter uas qhia txog cov nyiaj pab ntau tshaj tej yam rau qhov kev kawm ntawm ib tug computer system hloov. Wherein zaus ncaj qha muaj feem xyuam rau peb yam tseem ceeb:

• Nyuaj teeb meem yuav tsum tau solved.

• Lub degree ntawm optimization software rau multithreading.

• Tus tam sim no tus nqi ntawm lub semiconductor nti kub.

Raws li ib qho piv txwv peb xav txog lub algorithm lag luam MT6582 nti, uas yog raws li nyob rau hauv A7 thiab muaj xws li plaub computational units uas zaus hloov los ntawm 600 MHz rau 1.3 GHz. Nyob rau hauv kaw hom, nws muaj lub ua tsev tej zaum yuav tsuas yuav tsuas yog ib qho xam chav tsev, thiab nws ua hauj lwm nyob rau hauv tus nqi qis tshaj tau zaus ntawm 600 MHz. Ib tug zoo xws li cov teeb meem no yog nyob rau hauv lub rooj plaub uas tej yam yooj yim daim ntawv thov rau cov mobile gadget yuav tsum launched. Tab sis thaum daim ntawv teev cov kev pab raws qib tshwm resource- qho khoom ua si nrog qhov zoo rau multithreading, nws yuav tau tig mus rau lub chaw ua hauj lwm ntawm tag nrho cov 4 ntawm lub code ua tsev ntawm ib zaus ntawm 1.3 GHz. Raws li feem ntau kub cua sov CPU tub ntxhais yuav txo lub zaus los yog txawm hloov tawm. Nyob rau hauv ib tes, qhov no mus kom ze muab energoeffektivnst, thiab rau lwm yam - lub nti taus ntawm kev kawm.

cache nco

Tsuas yog 2 cache theem muab rau nyob rau hauv lub caj NPAB Cortex A7. Cov yam ntxwv ntawm cov semiconductor nti, nyob rau hauv lem, taw tes rau lub fact tias cov thawj theem yog yuav tsum tau muab faib ua 2 sib npaug zos halves. должна хранить данные, а другая — инструкции. Ib tug ntawm lawv yog cia cov ntaub ntawv, thiab lwm yam - cov lus qhia. азмер кеша на 1-ом уровне по спецификациям может быть равен 64 Кб. Ntsiab lus p ntev cache 1 theem specifications tej zaum yuav sib npaug zos rau 64 KB. Raws li ib tug tshwm sim, peb tau 32 KB rau cov ntaub ntawv thiab 32 KB rau code. е ть от конкретной модели ЦПУ. Cache theem 2 nyob rau hauv rooj plaub no yuav tsum nyob raws li qhov kev e CPU qauv. Cov nqi tsawg tshaj plaws ntawm nws yuav ua tau 0 MB (i.e., tsis tuaj kawm ntawv) thiab qhov loj tshaj plaws - 4MB.

Lub xws RAM. nws cov nta

Ua-nyob rau hauv xws RAM yog txawm peem rau nrog rau tej processor caj NPAB Cortex A7. yam ntxwv ntawm kev npaj qhia hais tias nws yog tsim los mus ua hauj lwm nyob rau hauv nrog cov RAM LPDDR3 txheem. Pom zoo zaus nco lag luam nyob rau hauv cov ntaub ntawv no yog sib npaug zos rau 1066 MHz los yog 1333 MHz. Qhov siab tshaj plaws luaj li cas ntawm cov RAM, uas yuav tsum tau pom nyob rau hauv kev xyaum, rau qhov muab cov qauv ntawm cov nti yog 2 GB.

integrated graphics

Raws li tau leej twg, cov ntaub ntawv microprocessor pab kiag li lawm muaj ib tug integrated graphics subsystem. рекомендует использовать в сочетании с этим ЦПУ графическую карту собственной разработки Mali - 400MP2 . Qhuav lub tuam txhab NPAB xav hais tias koj siv nyob rau hauv nrog cov CPU graphics card Mali tus kheej txoj kev loj hlob - 400MP2. Tab sis nws ua tau zoo yog feem ntau tsis txaus rau unleash lub peev xwm ntawm microprocessor pab kiag li lawm. Yog li ntawd chips developers siv nyob rau hauv ua ke nrog nrog qhov ntau npaum nti card, piv txwv li, Fais fab tuag VR6200.

software nta

Peb hom kev khiav hauj lwm systems yog aimed ntawm caj NPAB processors:

• от поискового гиганта Google. Hauv los ntawm kev tshawb giant Google.

• от APPLE. iOS los ntawm KUA.

• от «Майкрософт». Lub qhov rais Mobile los ntawm lub "Microsoft".

Txhua tsav txhua yam yog tus system software twb tsis tau tau txais ntau tis. Qhov loj tshaj plaws qhia nyob rau hauv kev ua lag luam ntawm tej software tsis yog nyuaj rau twv, nws yuav siv sij hawm hauv. Qhov no system muaj ib tug yooj yim thiab intuitive interface ntaus ntawv thiab raws li nws yog heev thawj zaug theem thiab heev puas siv tau. Ua ntej yuav version 4.4 inclusive, nws yog 32-ntsis, thiab nrog 5.0 tam sim no kev txhawb zog 64-ntsis xam. , в том числе и ARM Cortex A7. Qhov no operating system yog ntse ua tau hauj lwm nyob rau hauv tej tsev neeg CPU architecture RISC, xws li NPAB Cortex A7. Engineering ntawv qhia zaub mov - yog lwm tseem ceeb feature ntawm lub system software. Nrog nws koj muaj peev xwm ho reconfigure lub OS nta. Mus saib tau qhov no tib yam zaub mov yuav tsum accessed siv cov code uas lub CPU rau txhua qauv yog nws.

Ib qho tseem ceeb feature yog lub Linux operating system - installation ntawm tag nrho cov tau tshiab tau. Yog li ntawd, txawm tus tshiab lub sij hawm tshwm sim rau lub nti tsev neeg NPAB Cortex A7. Firmware yuav ntxiv lawv. Qhov thib ob system yog aimed ntawm mobile gadgets tuam txhab uas muag KUA. Xws li feem ntau nyob ib tug nqi - ya thiab muaj cov theem ntawm kev ua tau zoo thiab them tus nqi. пока не получила большого распространения. Tseeb OS qhov rais Mobile ntsej muag twb tsis tau tau txais ntau tis. Devices raws li nws yog, nyob rau hauv tej ya ntawm mobile gadgets, tab sis hais tias ib tug me me npaum li cas ntawm software daim ntawv thov nyob rau hauv cov ntaub ntawv no yog lub limiting rau nws loj hlob.

processor qauv

Qhov tseem muaj thiab yam tsawg kawg tsim nyob rau hauv cov ntaub ntawv no yog 1-core chips. Qhov tseem ntau ntawm lawv MT6571 tau txais los ntawm lub tuam txhab tsev qiv ntawv. Thaum kauj ruam saum toj no yog dual CPU NPAB Cortex A7 Dual Core. Raws li ib qho piv txwv, MT6572 los ntawm tag nrho cov tib Chaw tsim tshuaj paus. Ib tug txawm ntau dua theem ntawm kev ua tau zoo muab Quad Core NPAB Cortex A7. Cov feem nrov nti los ntawm tsev neeg no yog cov MT6582, uas tam sim no txawm yuav muaj nyob rau hauv mobile gadgets, cov thawj theem. Zoo, qhov loj tshaj theem ntawm kev ua tau zoo muab lub 8-tub ntxhais CPUs, uas sawv daws khoom ib rau 6595 MT.

Zeem muag rau txoj kev loj hlob ntxiv

Koj tseem yuav nrhiav tau nyob rau lub khw rhawv mobile pab kiag li lawm uas yog raws li nyob rau hauv semiconductor ua tsev rau lub hauv paus ntawm 4 X NPAB Cortex A7. Qhov no MT6580, MT6582 thiab "Snapdragon 200". Tag nrho cov chips muaj xws li plaub xam chav tsev thiab muaj zoo heev zog efficiency. Tsis tas li ntawd nyob rau hauv cov ntaub ntawv no, tus nqi yog heev, heev coj. Tab sis tseem zoo tshaj plaws ntawm lub sij hawm yog ib tug microprocessor architecture lawm. Ncov muag khoom ntawm cov khoom raws li nws vau rau 2013-2014, thaum lub lag luam rau mobile gadgets nws muaj zoo tsis muaj lwm txoj kev. Thiab nyob rau hauv cov ntaub ntawv no peb yuav tham txog cov nyiaj txiag raws li ib tug ntaus nrog 1 los yog 2 computer modules thiab ib tug flagship gadgets nrog 8-tub ntxhais CPU. Thaum lub caij, nws maj mam displaces ua lag luam "Cortex A53", uas yog tseem zoo ib tug hloov 64-ntsis version ntawm lub A7. Nyob rau hauv cov ntaub ntawv no, lub ntsiab zoo ntawm nws cov thawj, nws tau fwm nkaus, thiab rau yav tom ntej no yeej qab nws.

Lub tswv yim ntawm cov kws txawj thiab cov neeg siv. Real xyuas ntawm tej daim raws li nyob rau hauv no architecture. Txawj thiab kev qaug zog

Ntawm cov hoob kawm, ib tug tseem ceeb tshwm sim rau lub ntiaj teb no ntawm mobile pab kiag li lawm tau tshwm sim los ntawm microprocessor architecture NPAB Cortex A7 pab kiag li lawm. Qhov zoo tshaj plaws pov thawj ntawm no yog hais tias pab kiag li lawm raws li nyob rau hauv nws muaj ntse muag ntau tshaj 5 xyoos. Ntawm cov hoob kawm, tam sim no lub CPU muaj peev xwm nyob rau hauv lub hauv paus ntawm lub A7 yog twb tsis txaus txawm rau ib tug nruab nrab-theem paub tab, tiam sis feem ntau yooj yim code li daim tawv nyias thiab ntse ua tau hauj lwm hnub no. Daim ntawv ntawm tej software muaj xws li yees duab, suab mloog, nyeem cov phau ntawv, caij txhiag dej lub Web site, thiab txawm lub feem ntau yooj yim cov khoom ua si, nyob rau hauv cov ntaub ntawv no khiav tsis muaj teeb meem. Nws yog nyob rau qhov no thiab tsom rau qhov ua tshuaj pleev portals nplooj siab rau mobile gadgets thiab devaysa li cov uas cov kws txawj ntawm txoj hau kev no, raws li zoo raws li tib yam cov neeg siv. Ntsiab rho tawm A7 - yog cov tsis muaj them nyiaj yug rau 64-ntsis xam. Tab sis lub loj zoo xws li nws meej ua ke nrog ntawm lub zog efficiency thiab kev kawm ntawv.

tau

это целая эпоха в мире мобильных устройств. Ntawm cov hoob kawm, tus architecture ntawm caj NPAB Cortex A7 - ib tug tag nrho era nyob rau hauv lub ntiaj teb no ntawm mobile pab kiag li lawm. Nws yog nrog lub advent ntawm nws mobile pab kiag li lawm tau ua muaj thiab heev tsim. Thiab lub mere fact tias nws muaj ntau tshaj li 5 xyoos ntse muag lwm yam puavpheej. Tab sis yog hais tias tus thawj gadgets rau nws puag yog nyob rau hauv nruab nrab thiab hwm feem ntawm lub lag luam, thiab tam sim no rau lawv tsuas yog ib tug nyiaj txiag hauv chav kawm ntawv. Qhov no architecture yog outdated thiab yog maj disappearing.