Merrillchip Cusub & Asalka ee kaydka Qaybaha Elektarooniga ah ee isku dhafan IC DS90UB928QSQX/NOPB
Sifooyinka Alaabta
NOOCA | SHARAXA |
Qaybta | Wareegyada isku dhafan (ICs) |
Mfr | Qalabka Texas |
Taxane | Gawaarida, AEC-Q100 |
Xidhmada | Cajalad & Gariir (TR) Jaran Cajalad (CT) Digi-Reel® |
SPQ | 250 T&R |
Xaaladda Alaabta | Firfircoon |
Shaqada | Deserializer |
Heerka Xogta | 2.975Gbps |
Nooca Gelitaanka | FPD-Link III, LVDS |
Nooca wax soo saarka | LVDS |
Tirada Wax-soo-gelinta | 1 |
Tirada Waxsoosaarka | 13 |
Voltage - Supply | 3V ~ 3.6V |
Heerkulka shaqada | -40°C ~ 105°C (TA) |
Nooca Koritaanka | Dusha sare |
Xidhmada / Kiis | 48-WFQFN suuf qaawan |
Xidhmada Aaladda Bixiyaha | 48-WQFN (7x7) |
Lambarka Alaabta Saldhigga | DS90UB928 |
1.
FPDLINK waa bas kala duwanaansho xawaare sare leh oo ay haysay TI, inta badan loo isticmaalo gudbinta xogta sawirka, sida kamarada iyo xogta bandhigga.Halbeeggu si joogto ah ayuu u kobcayaa, laga soo bilaabo lammaanihii asalka ahaa ee xariiqda gudbinaya 720P@60fps sawirrada ilaa awoodda hadda lagu gudbiyo 1080P@60fps, oo leh chips soo socda oo taageeraya xitaa xallinta sawirka sare.Masaafada gudbinta ayaa sidoo kale aad u dheer, gaareysa ilaa 20m, taasoo ka dhigaysa mid ku habboon codsiyada baabuurta.
FPDLINK waxa ay leedahay kanaalka horusocodka xawaaraha sare leh ee gudbinta xogta sawirka xawaaraha sare leh iyo qayb yar oo xogta xakamaynta ah.Waxa kale oo jira kanaalka dib u xawaaraha hooseeya ee gudbinta macluumaadka xakamaynta gadaasha.Isgaadhsiinta hore iyo gadaalba waxay sameeyaan kanaalka kontoroolka laba-jiho, kaas oo horseedaya naqshadaynta xariifnimada leh ee I2C ee FPDLINK kaas oo lagaga hadli doono warqadan.
FPDLINK waxaa loo isticmaalaa serializer iyo deserializer la isku daray, CPU waxaa lagu xiri karaa serializer-ka ama qalabeeyaha, iyadoo ku xiran codsiga.Tusaale ahaan, codsiga kamarada, dareeraha kamaradu wuxuu ku xiraa serializer-ka wuxuuna u diraa xogta qalabka nadiifiyaha ah, halka CPU-gu uu helo xogta laga soo diro deserializer-ka.Codsiga bandhigga, CPU waxay u soo dirtaa xogta serializer-ka iyo deserializer-ku wuxuu ka helayaa xogta serializer wuxuuna u dirayaa shaashadda LCD si loo soo bandhigo.
2.
CPU's i2c ka dib waxaa lagu xiri karaa serializer ama deserializer's i2c.Chip-ka FPDLINK wuxuu helayaa macluumaadka I2C ee ay soo dirtay CPU wuxuuna u gudbiyaa macluumaadka I2C dhanka kale isagoo sii maraya FPDLINK.Sida aan ognahay, nidaamka i2c, SDA waxaa la isku waafajiyay SCL.Codsiyada guud, xogtu waxay ku xidhan tahay cidhifka kor u kaca ee SCL, kaas oo u baahan sayidkii ama addoonku inuu diyaar u ahaado xogta cidhifka soo dhacaya ee SCL.Si kastaba ha ahaatee, FPDLINK, maadaama gudbinta FPDLINK ay ku beegan tahay, dhib ma leh marka sayidku u soo diro xogta, ugu badnaan addoonku wuxuu helayaa xogta dhowr saacadood ka dib markuu sayidku soo diro, laakiin waxaa dhib ah marka addoonku u jawaabo sayidkii. , tusaale ahaan, marka uu addoonku ACK ugu jawaabo sayidkii marka ACK-gu u gudbiyo sayidkiisa, waa horeba ka dib markii uu addoonku soo diray, taas oo ah in ay hore u soo martay dib u dhigista FPDLINK oo laga yaabo inay seegtay kor u kaca. Tusmada ugu hooseysa ee SCL.
Nasiib wanaag, borotokoolka i2c wuxuu tixgelinayaa xaaladdan.i2c spec waxay qeexaysaa hanti loo yaqaan 'i2c stretch', taas oo macnaheedu yahay in addoonka i2c uu hoos u dhigi karo SCL ka hor inta uusan dirin ACK haddii uusan diyaar u ahayn si uu sayidku u guuldareysto marka uu isku dayo inuu soo jiido SCL si uu sayidku u sii wado isku dayga. SCL kor u soo jiid oo sug, Sidaa darteed marka la falanqeynayo mowjadda i2c ee dhinaca FPDLINK Slave, waxaan ogaan doonaa in mar kasta oo qaybta ciwaanka la diro, waxaa jira 8 bits oo keliya, ACK-ga ayaa laga jawaabi doonaa mar dambe.
Chip-ka TI's FPDLINK wuxuu si buuxda uga faa'iidaysanayaa sifadan, halkii uu si fudud u gudbin lahaa qaabka mowjadda i2c ee la helay (tusaale ahaan dhawrista isla heerka baud ee soo-diraha), waxay dib u gudbisaa xogta la helay iyadoo la eegayo heerka baud ee lagu dejiyay chip FPDLINK.Tani waxay markaa muhiim u tahay in la ogaado marka la falanqeynayo mawjada i2c ee dhinaca FPDLINK ee addoonsiga.Heerka CPU i2c baud wuxuu noqon karaa 400K, laakiin heerka i2c baud ee dhinaca addoonta ee FPDLINK waa 100K ama 1M, taas oo ku xidhan goobaha sare iyo hoose ee SCL ee chip FPDLINK.