I-LVDS Serializer 2975Mbps Automotive 40-Pin WQFN EP T/R DS90UB927QSQX/NOPB

1.

Ngokuhlalutya i-i2c waveform yekhoboka, uya kufumana kwakhona into enomdla kakhulu, xa ufunda idatha yerejista, ikhoboka liya kuqala likhuphe i-waveform yalo ukuze lifundwe kwangaphambili, umzekelo, ukufunda idilesi ebhalisiweyo yedatha ye-0x00, uya kubona. kwi-waveform emva kokuba inkosi ikhuphe idilesi yokubhala irejista 0x00, emva koko iya kukhupha idilesi yekhoboka ukuze ifundwe (R / W = (R / W = 1), ikhoboka liya kukhupha i-8 SCL waveforms ukuze ifundwe kwangaphambili emva kokuba i-waveform ikhutshiwe, kwaye ezi wotshi zisi-8 azihambelani kwicala lenkosi iya kukhutshwa kamva, ke ikhoboka lilingana nokukhupha kuqala.

Uyilo lwale ndawo luhlakaniphe kakhulu kuba i-i2c protocol imisela ukuba i-i2c stretch ingenzeka kuphela kwi-bit yesithoba, oko kukuthi, i-ACK bit.i-waveform ayivumelekanga ukuba itsalwe, kwaye akukho datha ifunyenwe kwikhoboka ngeli xesha, ngoko kukho ingxaki.

Indlela ye-TI kukuba, ekubeni kukho isenzo sokubhala ngaphambili, kulandelwa idilesi yekhoboka efundwayo ethunyelwe ngokukhawuleza emva koko, kuyacaca ukuba idilesi ebhalisiweyo emele ifundwe yileyo ibhalwe ngaphambili, ngoko inkosi iya kuthumela idilesi yekhoboka lokufunda. kwi-9bit ACK ukutsala ngelixa uthumela ii-SCL ezisibhozo kwirejista yokufunda nokubhala, kwaye emva koko ukhulule i-SCL, inkosi ibona ukukhutshwa kwe-SCL emva kokuba inkosi ibona ukuba i-SCL ikhululiwe kwaye iphinda idlulisele iwashi yedatha efundwayo, apho idatha ibuyiselwa ICPU.

2.

Imiqathango ye-LVDS eqhelekileyo okanye isigama

I-1) Izibini ezihlukeneyo: Ibhekisela kwi-transmission ye-LVDS esebenzisa abaqhubi ababini abaphumayo ukuze baqhube imigca emibini yokuhambisa, enye iphethe umqondiso kunye nenye iphethe isignali yayo yokuncedisa.Umqondiso ofunekayo ngumahluko kwi-voltage kwimigca emibini yothumelo, ephethe ulwazi lwesignali ukuba ludluliselwe.

I-2) Isibini somqondiso: ibhekisela kwisiphaluka sonxibelelwano lwe-LVDS apho imveliso yeshaneli nganye yokuhanjiswa kwedatha okanye ishaneli yokuhambisa iwashi yimiqondiso emibini (iziphumo ezilungileyo nezingalunganga)

3) Umthombo: Isixhobo esenza ingqokelela yokubhaliweyo, imizobo, imifanekiso, iaudio, kunye nedatha yevidiyo.

4) Ummkeli (Isinki): isixhobo esenza kwaye sibonise idatha.
5) I-FPD-LINK: I-Flat Panel Display Link, i-high-speed digital interface interface yevidiyo esekelwe kumgangatho we-LVDS owenziwe yi-National Semiconductor kwi-1996 (efunyenwe yi-Texas Instruments TI ngo-2011) ukuxhasa ukuhanjiswa kwedatha ukusuka kumlawuli wegraphics kwi-LCD. Iphaneli.

6) I-GMSL: I-Gigabit Multimedia Serial Link, ifomathi yeprotocol yokuhanjiswa kwesignali ye-LVDS eyenziwe nguMaxim ngokusekelwe kumgangatho we-LVDS.

7) Isitishi esiPhambili: Ijelo lokudlulisa idatha ngesantya esiphezulu ukusuka kwiSeriizer ukuya kwiDeserializer.

I-8) I-Backchannel: Ekwabizwa ngokuba yi-Reverse channel, ibhekiselele kwisitayile esisezantsi sedatha esisuka kwi-Deserializer ukuya kwi-Serializer.