Menene I2C
I2C wata ka'ida ce ta siriyal da ake amfani da ita don haɗin haɗin waya guda biyu don haɗa ƙananan na'urori masu sauri kamar microcontrollers, EEPROMs, A/D da D/A masu juyawa, masu mu'amalar I/O, da sauran makamantan na'urori a cikin tsarin da aka haɗa. Yana aiki tare, mashawarci da yawa, bawa da yawa, sauya fakiti, mai ƙarewa ɗaya, bas ɗin sadarwar serial wanda Philips Semiconductor ya ƙirƙira (yanzu NXP Semiconductor) a cikin 1982.
I²C kawai yana amfani da Buɗaɗɗen Ruwa na Biyu (Serial Data (SDA) da Serial Aago (SCL)) kuma yana amfani da resistors don haɓaka yuwuwar. I²C yana ba da damar kewayon ƙarfin wutar lantarki mai yawa, amma matsakaicin matakin ƙarfin lantarki shine +3.3V ko +5v.
Zane-zanen tunani na I²C yana amfani da sararin adireshi 7-bit amma yana tanadi adireshi 16, don haka yana iya sadarwa tare da nodes har 112 a cikin rukunin bas [a]. Bus ɗin I²C na gama gari yana da hanyoyi daban-daban: daidaitaccen yanayin (100 kbit/s), yanayin ƙarancin sauri (10kbit/s), amma ana iya barin mitar agogo ta ragu zuwa sifili, wanda ke nufin ana iya dakatar da sadarwa. Sabon ƙarni na bas ɗin I²C na iya sadarwa tare da ƙarin nodes (mai tallafawa sararin adireshi 10-bit) a cikin sauri sauri: yanayin sauri (400 kbit/s), yanayin sauri da (1 Mbit/s), yanayin sauri (3.4 Mbit) /s), yanayin saurin-sauri (5Mbit/s).
Menene I²S?
I²S (Inter-IC Sound) sigar lantarki ce ta keɓaɓɓiyar mu'amala da bas ɗin da ake amfani da ita don haɗa na'urorin sauti na dijital tare, Philips Semiconductor ne ya fara gabatar da wannan ma'aunin a 1986. Ana amfani da shi don canja wurin bayanan sauti na PCM tsakanin haɗaɗɗun da'irori a cikin na'urorin lantarki.
Interface I2S Hardware:
1. Layin agogo Bit
Wanda ake kira "Ci gaba da Agogon Serial (SCK)". Yawancin lokaci ana rubuta su azaman "bit clock (BCLK)".
Wato, kowane ɗan bayanan da ya dace da sauti na dijital, SCLK yana da bugun jini.
Mitar SCLK = 2 × mitar samfur × adadin ragowar samfur.
2. Layin agogon kalma
Wanda aka fi sani da "zabin kalmomi (WS)". [Wanda aka fi sani da "LRCLK" ko "Frame Sync (FS)".
0 = tashar hagu, 1 = tashar dama
3. Aƙalla layin bayanai masu yawa
Wanda ake kira "Serial Data (SD)", amma ana iya kiransa SDATA, SDIN, SDOUT, DACDAT, ADCDAT, da sauransu.
Jadawalin lokaci na I²S
