Kini Interface I2S?
I²S (Inter-IC Sound) jẹ boṣewa wiwo akero ni tẹlentẹle itanna ti a lo fun sisopọ awọn ẹrọ ohun afetigbọ oni-nọmba papọ, boṣewa yii jẹ ipilẹṣẹ akọkọ nipasẹ Philips Semikondokito ni ọdun 1986. O jẹ lilo lati gbe data ohun PCM laarin awọn iyika ti a ṣepọ ni awọn ẹrọ itanna.
I2S Hardware Interface
1. Bit aago ila
Formally ti a npe ni "Tesiwaju Serial Aago (SCK)". Nigbagbogbo a kọ bi “Aago bit (BCLK)”.
Iyẹn ni, data kọọkan ti o baamu si ohun oni-nọmba, SCLK ni pulse kan.
Igbohunsafẹfẹ SCLK = 2 × igbohunsafẹfẹ iṣapẹẹrẹ × nọmba ti awọn iwọn iṣapẹẹrẹ.
2. Laini aago ọrọ
Formally mọ bi "ọrọ aṣayan (WS)". [Ti a tọka si bi “LRCLK” tabi “Amuṣiṣẹpọ fireemu (FS)”.
0 = ikanni osi, 1 = ikanni ọtun
3. Ni o kere kan multiplexed data ila
Ni deede ti a pe ni “Data Serial (SD)”, ṣugbọn o le pe ni SDATA, SDIN, SDOUT, DACDAT, ADCDAT, ati bẹbẹ lọ.
Aworan akoko ti I²S
I2S ni wiwo: Bluetooth module
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