Erinevus lehekülje "Esisiin" redaktsioonide vahel

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[[Pilt:CPUbus.png|pisi|Mitmetuumalises protsessoris on tagasiin siseste, esisiin aga väliste andmete vahetamiseks.]]
'''Esisiin''' ('''FSB''' ''ingl.k''. ''Front Side Bus'') on [[arvuti]] [[liides]], mis esineb vanemates (1990-20001990–2000) [[Intel|Inteli]]-põhiste [[Protsessor|protsessorite]] arvutites. [[AMD]] vastavaks tehnoloogiaks on [[EV6]] liides. Mõlema ülesanne on edastada andmeid [[Keskprotsessor|keskprotsessori]] ja [[Mälukontroller|mälukontrolleri]] vahel, mida kutsutakse ka [[põhjasiiniks]].
 
Vastavalt arhitektuurile on mõndades arvutites ka [[tagasiin]], mis ühendab keskprotsessori [[Vahemälu|vahemäluga]]. Selle liidese ja sellga ühendatud vahemälu vaheline kiirus on suurem kui ühendus [[Muutmälu|muutmäluga]] läbi esisiini. Esisiini kiirust kasutatakse tavaliselt arvuti kiiruse kirjeldamiseks.
 
== Ajalugu ==
Termin tuli kasutusele kui Intel kuulutas välja [[Pentium Pro]] ja [[Pentium II]] protsessorid 1990. aastal. "Esi" viitab siinpuhul protsessori välisele liidesele, mis ühendab protsessori kogu ülejäänud arvuti komponentidega. Tagasiin aga tagab ühenduse ainult vahemälu või teiste keskprotsessoritega.<ref>{{cite web |titlename= Introduction to Intel Architecture: The Basics |author= Todd Langley and Rob Kowalczyk |date= Jaanuar 2009 |url= ftp://download.intel.com/design/intarch/PAPERS/321087.pdf |publisher= Intel Corporation |work= "White paperNYzLy" |accessdate= 1. mai 2016 }}</ref>
 
Esisiini esineb põhiliselt [[Personaalarvuti|personaalarvutite]] [[Emaplaat|emaplaatides]] ja [[Server|serverites]]. Sellise tehnoloogia kasutuselevõtt tõi kaasa kiiruse kasvu, mida komplektse siini arhitektuuriga arvutid eelneval aastakümnel saavutada ei suutnud.
Esisiinid ühendavad protsessori ja kogu ülejäänud riistvara tavaliselt [[Kiibistik|kiibistikkude]] abil, mida Intel implementeeris [[Põhjasild|põhjasilla]] ja [[Lõunasild|lõunasillana]]. Teised siinid nagu [[PCI siin|PCI]], [[Kiirendatud graafikaport|Kiirendatud Graafikaport]] <nowiki/>(AGP) ja mälusiinid ühenduvad samuti antud kiibistukkudesse, et andmeid erinevate komponentide vahel edastada. Need teisejärgulised siinid jooksevad tavaliselt esisiini [[Taktsagedus|taktsagedusel]], kuid ei pruugi olla sellega [[Sünkroonsus|sünkroniseeritud]].
 
Vastuseks AMD [[Torrenza]] algatusele, avas Intel protsessorite pesa esisiinid kolmandate osapoolte seadmetele.<ref>{{cite news |titlename="liCG8" Intel opens up its front side bus to the world+dog: IDF Spring 007 Xilinx heralds the bombshell |url= http://www.theinquirer.net/inquirer/news/1044635/intel-bus-world-dog |author= Charlie Demerjian |date= 17. aprill 2007 |work= The Inquirer |accessdate= 1. mai 2016 }}</ref> Eelnevalt sellelele teadandele hoidis Intel hoolikalt silma peal sellel, kellele anda ligipääs esisiinile, lubades ainult Inteli protsessoreid keksprotsessori pesasse. Antud algatuse tulemusena tulid välja FPGA protsessorid, Intel-[http://www.xilinx.com/ Xilinx]-[http://www.nallatech.com/ Nallatech]<ref>{{cite news |titlename="YBafQ" Nallatech™ Launches Early Access Program for the Industry’s First FSB-FPGA Module |date= 18. september 2007 |work= Business Wire news release |publisher= Nallatech |url= http://www.businesswire.com/news/home/20070918006506/en/Nallatech-TM-Launches-Early-Access-Program-Industrys |accessdate= 1. mai 2016}}</ref> ja Intel-[https://www.altera.com/ Altera]-[https://www.xtremedata.com/ XtremeData] partnerlusest, mis väljastati 2008. aastal.<ref>{{cite news |titlename=XtremeData"7cF5X" Offers Stratix III FPGA-Based Intel FSB Module |date= 18. september 2007 |work= Business Wire news release |publisher= Chip Design magazine |url= http://chipdesignmag.com/display.php?articleId=2380 |accessdate= 1. mai 2016}}</ref><ref>{{cite news |titlename="hwqhW" High fiber diet gives Intel 'regularity' needed to beat AMD |url= http://www.theregister.co.uk/2007/04/17/intel_idf_serverstuff/ |author= Ashlee Vance |date= 17. aprill 2007 |work= The Register |accessdate= 1. mai 2016}}</ref><ref>{{cite news |titlename=XtremeData"jeuq8" Begins Shipping 1066 MHz Altera Stratix III FPGA-Based Intel FSB Module |date= 17. juuni 2008 |work= Business Wire news release |publisher= XtremeData |url= http://www.businesswire.com/news/home/20080617005298/en/XtremeData-Begins-Shipping-1066-MHz-Altera-Stratix |accessdate= 1. mai 2016}}</ref>
 
== Komponentide töökiirused ==
! Protsessor !! Esisiini taktsagedus (MHz) !! Edastusi tsükli kohta !! Siini laius !! Andmeedastuse kiirus (MB/sec)
|-
| [http://cpu-data.info/index.php?gr=135&lng=1 Pentium] || 50 - 6650–66 || 1 || 64-bit || 400 - 528400–528
|-
| [http://www.cpu-collection.de/?tn=0&l0=co&l1=Intel&l2=Pentium+OverDrive Pentium Overdrive] || 25 - 6625–66 || 1 || 64-bit || 200 - 528200–528
|-
| [http://ark.intel.com/products/family/2024 Pentium Pro] || 60 / 66 || 1 || 64-bit || 480 - 528480–528
|-
| [http://cpu-data.info/index.php?gr=135&lng=1 Pentium MMX] || 60 / 66 || 1 || 64-bit || 480 - 528480–528
|-
| [http://cpu-data.info/index.php?gr=137&lng=1 Pentium MMX Overdrive] || 50 / 60 / 66 || 1 || 64-bit || 400 - 528400–528
|-
| [http://ark.intel.com/products/family/583 Pentium II] || 66 / 100 || 1 || 64-bit || 528 / 800
| [http://ark.intel.com/products/family/2023 Pentium II Xeon] || 100 || 1 || 64-bit || 800
|-
| [http://www.cpu-world.com/CPUs/Pentium-II/Intel-Pentium%20II%20Overdrive%20333%20-%20PODP66X333%20%28UBPODP66X333%29.html Pentium II Overdrive] || 60 / 66 || 1 || 64-bit || 480 - 528480–528
|-
| [http://ark.intel.com/products/family/590 Pentium III] || 100 / 133 || 1 || 64-bit || 800 / 1064
| [http://cpu-data.info/index.php?gr=113&lng=1 Pentium III-M] || 100 / 133 || 1 || 64-bit || 800 / 1064
|-
| [http://ark.intel.com/products/family/581 Pentium 4] || 100 / 133 || 4 || 64-bit || 3200 - 42563200–4256
|-
| [http://cpu-data.info/index.php?gr=117&lng=1 Pentium 4-M] || 100 || 4 || 64-bit || 3200
| [http://ark.intel.com/products/family/581 Pentium 4 HT Extreme Edition] || 200 / 266 || 4 || 64-bit || 6400 / 8512
|-
| [http://ark.intel.com/products/family/7944 Pentium D] || 133 / 200 || 4 || 64-bit || 4256 - 64004256–6400
|-
| [http://cpu-data.info/index.php?gr=123&lng=1 Pentium Extreme Edition] || 200 / 266 || 4 || 64-bit || 6400 / 8512
| [http://cpu-data.info/index.php?gr=122&lng=1 Pentium Dual-Core] || 200 / 266 || 4 || 64-bit || 6400 / 8512
|-
| [http://cpu-data.info/index.php?gr=140&lng=1 Pentium Dual-Core Mobile] || 133 - 200133–200 || 4 || 64-bit || 6400 - 85126400–8512
|-
| [http://ark.intel.com/products/family/288 Celeron] || 66 - 20066–200 || 1-41–4 || 64-bit || 528 - 6400528–6400
|-
| [http://ark.intel.com/products/family/43401 Celeron Mobile] || 133 - 200133–200 || 1-41–4 || 64-bit || 4256 - 64004256–6400
|-
| [http://ark.intel.com/products/family/5263 Celeron D] || 133 || 4 || 64-bit || 4256
|-
| [http://ark.intel.com/products/family/3799 Celeron M] || 66 - 20066–200 || 1-41–4 || 64-bit || 528 - 6400528–6400
|-
| [http://cpu-data.info/index.php?gr=102&lng=1 Celeron Dual-Core] || 200 || 4 || 64-bit || 6400
|-
| [http://cpu-data.info/index.php?gr=142&lng=1 Celeron Dual-Core Mobile] || 133 - 200133–200 || 4 || 64-bit || 4256 - 64004256–6400
|-
| [http://cpu-data.info/index.php?gr=150&lng=1 Itanium] || 100 / 133 || 1 || 64-bit || 800 / 1064
|-
| [http://www.cpu-world.com/CPUs/Itanium_2/index.html Itanium 2] || 100 - 166100–166 || 4 || 64-bit || 3200 - 53123200–5312
|-
| [http://www.cpu-world.com/CPUs/Xeon/index.html Xeon] || 100 - 400100–400 || 4 || 64-bit || 3200 - 128003200–12800
|-
| [http://ark.intel.com/products/family/18995 Core Solo] || 133 / 166 || 4 || 64-bit || 4256 / 5312
| [http://ark.intel.com/products/family/22731 Core Duo] || 133 / 166 || 4 || 64-bit || 4256 / 5312
|-
| [http://ark.intel.com/products/family/32257 Core 2 Solo] || 133 - 200133–200 || 4 || 64-bit || 4256 - 64004256–6400
|-
| [http://ark.intel.com/products/family/26547 Core 2 Duo] || 200 - 333200–333 || 4 || 64-bit || 6400 - 106566400–10656
|-
| [http://ark.intel.com/products/family/26548 Core 2 Duo Mobile] || 133 - 266133–266 || 4 || 64-bit || 4256 - 85124256–8512
|-
| [http://ark.intel.com/products/family/28398 Core 2 Quad] || 266 / 333 || 4 || 64-bit || 8512 / 10656
| [http://ark.intel.com/products/family/37361 Core 2 Quad Mobile] || 266 || 4 || 64-bit || 8512
|-
| [http://ark.intel.com/products/family/34522 Core 2 Extreme] || 266 - 400266–400 || 4 || 64-bit || 8512 - 128008512–12800
|-
| [http://ark.intel.com/products/family/34520 Core 2 Extreme Mobile] || 200 / 266 || 4 || 64-bit || 6400 / 8512
|-
| [http://ark.intel.com/products/family/29035 Atom] || 100 - 166100–166 || 4 || 64-bit || 3200 - 53123200–5312
|}
 
 
== Välislingid ==
{{viited|allikad=
<references />
<ref name="NYzLy">{{cite web |title= Introduction to Intel Architecture: The Basics |author= Todd Langley and Rob Kowalczyk |date= Jaanuar 2009 |url= ftp://download.intel.com/design/intarch/PAPERS/321087.pdf |publisher= Intel Corporation |work= "White paper" |accessdate= 1. mai 2016}}</ref>
<ref name="liCG8">{{cite news |title= Intel opens up its front side bus to the world+dog: IDF Spring 007 Xilinx heralds the bombshell |url= http://www.theinquirer.net/inquirer/news/1044635/intel-bus-world-dog |author= Charlie Demerjian |date= 17. aprill 2007 |work= The Inquirer |accessdate= 1. mai 2016}}</ref>
<ref name="YBafQ">{{cite news |title= Nallatech™ Launches Early Access Program for the Industry’s First FSB-FPGA Module |date= 18. september 2007 |work= Business Wire news release |publisher= Nallatech |url= http://www.businesswire.com/news/home/20070918006506/en/Nallatech-TM-Launches-Early-Access-Program-Industrys |accessdate= 1. mai 2016}}</ref>
<ref name="7cF5X">{{cite news |title=XtremeData Offers Stratix III FPGA-Based Intel FSB Module |date= 18. september 2007 |work= Business Wire news release |publisher= Chip Design magazine |url= http://chipdesignmag.com/display.php?articleId=2380 |accessdate= 1. mai 2016}}</ref>
<ref name="hwqhW">{{cite news |title= High fiber diet gives Intel 'regularity' needed to beat AMD |url= http://www.theregister.co.uk/2007/04/17/intel_idf_serverstuff/ |author= Ashlee Vance |date= 17. aprill 2007 |work= The Register |accessdate= 1. mai 2016}}</ref>
<ref name="jeuq8">{{cite news |title=XtremeData Begins Shipping 1066 MHz Altera Stratix III FPGA-Based Intel FSB Module |date= 17. juuni 2008 |work= Business Wire news release |publisher= XtremeData |url= http://www.businesswire.com/news/home/20080617005298/en/XtremeData-Begins-Shipping-1066-MHz-Altera-Stratix |accessdate= 1. mai 2016}}</ref>
}}
 
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