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

1.

Nekuongorora iyo i2c waveform yemuranda, iwe zvakare uchawana chinhu chinonakidza kwazvo, kana uchiverenga regist data, muranda anotanga aburitsa waveform yake yekufanoverenga, semuenzaniso, kuverenga kero yakanyoreswa 0x00 data, uchaona. pane waveform mushure mekunge tenzi aburitsa kero yekunyora kunyoresa 0x00, obva aburitsa kero yemuranda yekuverenga (R/W = (R/W = 1), muranda anoburitsa 8 SCL waveforms kuti averenge-kare mushure mekunge waveform yapera. yakapihwa, uye awa masere masere haaenderane kudivi ratenzi tenzi anozopihwa gare gare, saka muranda akafanana nekutanga kuburitsa.

Magadzirirwo enzvimbo ino akangwara nekuti i2c protocol inotaura kuti i2c kutambanudza kunogona kungoitika muchikamu chepfumbamwe, ndiko kuti, ACK bit.iyo waveform haibvumidzwe kudhonzwa, uye hapana data inogamuchirwa kubva kumuranda panguva ino, saka pane dambudziko.

Nzira yeTI ndeyokuti, sezvo kune chiito chekunyora mberi, chinoteverwa nekero yemuranda yekuverenga inotumirwa pakarepo mushure, zviri pachena kuti kero yakanyoreswa inofanira kuverengwa ndiyo yakanyorwa mberi, saka tenzi achatumira kuverenga kwemuranda kero. mu 9bit ACK dhonza uchitumira sere maSCL ekunyoresa kuverenga nekunyora, uye wozosunungura SCL, tenzi anoona kuburitswa kweSCL mushure mekunge Tenzi aona kuti SCL yakaburitswa uye inotumira zvakare kuverenga data wachi, panguva iyo data inodzoserwa kune CPU.

2.

LVDS Yakajairwa Matemu kana Terminology

1) Differential Pair: Inoreva LVDS chiratidzo chekufambisa uchishandisa madhiraivha maviri anobuda kutyaira mitsara miviri yekufambisa, imwe yakatakura chiratidzo uye imwe ichitakura chiratidzo chayo chekuwedzera.Chiratidzo chinodiwa mutsauko wevoltige pamitsara miviri yekutumira, iyo inotakura ruzivo rwechiratidzo kuti rwufambiswe.

2) Signal pair: inoreva LVDS interface wedunhu uko kuburitswa kwega yega data chiteshi kana wachi yekufambisa chiteshi zviratidzo zviviri (zvakanaka uye zvisina kunaka zvinobuda)

3) Kunobva: Chishandiso chinogadzira muunganidzwa wezvinyorwa, mifananidzo, mifananidzo, odhiyo, uye vhidhiyo data.

4) Receiver (Sink): mudziyo unoshanda uye unoratidza iyo data.
5) FPD-LINK: Flat Panel Display Link, yakakwira-kumhanya yedhijitari vhidhiyo interface yakatarwa yakavakirwa pachiyero cheLVDS chakagadzirwa neNational Semiconductor muna 1996 (yakawanikwa neTexas Instruments TI muna 2011) kutsigira kufambiswa kwedata kubva kune giraidhi controller kuenda kuLCD. panel.

6) GMSL: Gigabit Multimedia Serial Link, iyo LVDS chiratidzo chekufambisa protocol fomati yakagadziridzwa naMaxim yakavakirwa pachiyero cheLVDS.

7) Forward chiteshi: Yepamusoro-inomhanyisa data yekufambisa chiteshi kubva kuSeriizer kuenda kuDeserializer.

8) Backchannel: Iyo inonziwo Reverse chiteshi, inoreva yakaderera-inomhanya data data chiteshi kubva kuDeserializer kuenda kuSeriizer.