Yintoni i-I2C
I-I2C iprotocol ye-serial esetyenziselwa i-interface ye-wire-wire ukudibanisa izixhobo eziphantsi kwesantya ezifana ne-microcontrollers, i-EEPROMs, i-A / D kunye ne-D / A converters, i-interfaces ye-I / O, kunye nezinye iiperipheral ezifanayo kwiinkqubo ezifakwe. I-synchronous, i-multi-master, i-multi-slave, i-packet switching, i-single-end, ibhasi yonxibelelwano ye-serial eyenziwe yi-Philips Semiconductors (ngoku eyi-NXP Semiconductors) kwi-1982.
I-I²C isebenzisa kuphela iiDrains ezivulekileyo ezimbini ezilandelelanayo (idatha yothotho (SDA) kunye newotshi yesiriyali (SCL)) kwaye isebenzisa izixhasi ukutsala amandla. I-I²C ivumela uluhlu lwamandla ombane osebenzayo, kodwa umgangatho wombane oqhelekileyo yi-+3.3V okanye +5v.
Uyilo lwereferensi ye-I²C isebenzisa isithuba se-7-bit yedilesi kodwa igcine iidilesi ezili-16, ngoko inokunxibelelana ukuya kuthi ga kwi-112 iindawo kwiqela lebhasi [a]. Ibhasi ye-I²C eqhelekileyo ineendlela ezahlukeneyo: imowudi eqhelekileyo (100 kbit/s), imowudi yesantya esisezantsi (10 kbit/s), kodwa amaza ewotshi angavunyelwa ukuba awehle aye ku-zero, okuthetha ukuba unxibelelwano lunokunqunyanyiswa. Isizukulwana esitsha se-I²C ibhasi inokunxibelelana nezinye iindawo (ezixhasa i-10-bit indawo yeedilesi) ngesantya esikhawulezayo: imowudi ekhawulezayo (400 kbit/s), imowudi ekhawulezayo kunye (1 Mbit/s), imowudi enesantya esiphezulu (3.4 Mbit / s), i-ultra-fast-mode (5 Mbit/s).
Yintoni i-I²S?
I-I²S (Isandi se-Inter-IC) ngumgangatho wojongano lwebhasi ye-elektroniki esetyenziselwa ukudibanisa izixhobo ezivakalayo zedijithali kunye, lo mgangatho waziswa okokuqala yiPhilips Semiconductor ngo-1986.
I-I2S Hardware Interface:
1. Umgca wewotshi encinci
Ngokusesikweni ebizwa ngokuba yi "Continuous Serial Clock (SCK)". Ngokuqhelekileyo ibhalwe njenge "bit clock (BCLK)".
Oko kukuthi, i-bit nganye yedatha ehambelana nomsindo wedijithali, i-SCLK ine-pulse.
I-frequency ye-SCLK = 2 × i-sampling frequency × inani leebhithi zesampulu.
2. Umgca wewotshi yegama
Eyaziwa ngokusesikweni njenge "ukhetho lwamagama (WS)". [Edla ngokubizwa ngokuba yi "LRCLK" okanye "Ungqamaniso lweSakhelo (FS)".
0 = isitishi sasekhohlo, 1 = isitishi sasekunene
3. Ubuncinci umgca wedatha ophindwe kabini
Ngokusemthethweni ebizwa ngokuba yi "Serial Data (SD)", kodwa ingabizwa ngokuba yi-SDATA, SDIN, SDOUT, DACDAT, ADCDAT, njl.
Umzobo wexesha we-I²S
