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

1.

Ta hanyar nazarin tsarin i2c na bawan, kuma za ku sami wani al'amari mai ban sha'awa, lokacin karanta bayanan rajista, bawan zai fara fitar da motsinsa don karantawa, misali, don karanta adireshin rajista na 0x00, za ku gani. a kan waveform bayan maigidan ya ba da adireshin rubuta rajista 0x00, sannan zai ba da adireshin bawa don karantawa (R/W = (R/W = 1), bawa zai ba da 8 SCL waveforms don karantawa nan da nan bayan da waveform ɗin ya kasance. bayar, kuma waɗannan agogo 8 ba su dace ba a gefen maigidan za a ba da maigidan daga baya, don haka bawa yana daidai da fitowar farko.

Zane na wannan wurin yana da wayo sosai domin ka'idar i2c ta nuna cewa i2c stretch na iya faruwa ne kawai a cikin bit na tara, wato, ACK bit.Ba a yarda a ja da igiyar igiyar ruwa ba, kuma ba a karɓi bayanai daga bawa a wannan lokacin, don haka akwai matsala.

Hanyar TI ita ce, tun da akwai aikin rubutawa a gaba, sannan a aika adreshin bawan da aka karanta nan da nan, a bayyane yake cewa adireshin da aka yi rajista shi ne wanda aka rubuta a gaba, don haka maigidan zai aiko da adireshin bawa karantawa. a cikin 9bit ACK ya ja yayin aika SCL guda takwas don yin rijista karantawa da rubutawa, sannan a saki SCL, maigida ya gano sakin SCL bayan maigidan ya gano cewa an saki SCL kuma ya sake tura agogon karanta bayanan, a nan ne aka dawo da bayanan zuwa ga CPU.

2.

Sharuɗɗan gama gari na LVDS ko Kalmomi

1) Bambance-bambancen Biyu: Yana nufin watsa siginar LVDS ta amfani da direbobin fitarwa guda biyu don fitar da layukan watsawa guda biyu, ɗayan yana ɗauke da siginar ɗayan kuma yana ɗauke da siginar ƙarinsa.Siginar da ake buƙata shine bambancin ƙarfin lantarki a cikin layin watsawa biyu, waɗanda ke ɗauke da bayanan siginar da za a watsa.

2) Sigina guda biyu: yana nufin da'irar mu'amala ta LVDS inda fitarwar kowane tashar watsa bayanai ko tashar watsa agogo sigina biyu ne (fito masu inganci da mara kyau)

3) Tushen: Na'urar da ke samar da tarin rubutu, zane-zane, hotuna, sauti, da bayanan bidiyo.

4) Receiver (Sink): na'urar da ke sarrafa bayanai da kuma nuna bayanai.
5) FPD-LINK: Flat Panel Display Link, ƙayyadaddun ƙayyadaddun mu'amalar bidiyo na dijital mai sauri dangane da ma'aunin LVDS wanda Semiconductor na ƙasa ya kirkira a cikin 1996 (wanda Texas Instruments TI ya samu a 2011) don tallafawa canja wurin bayanai daga mai sarrafa hoto zuwa LCD. panel.

6) GMSL: Gigabit Multimedia Serial Link, tsarin siginar watsa siginar LVDS wanda Maxim ya haɓaka bisa ma'aunin LVDS.

7) Tashar Gaba: Tashar watsa bayanai mai sauri daga Serializer zuwa Deserializer.

8) Tashar baya: Har ila yau ana kiran tashar Reverse, tana nufin tashar watsa bayanai mai sauƙi daga Deserializer zuwa Serializer.