He aha ka I2S Interface?
ʻO I²S (Inter-IC Sound) kahi maʻamau kaʻa kaʻa kaʻa uila uila i hoʻohana ʻia no ka hoʻopili ʻana i nā mea leo kikohoʻe, ua hoʻokomo mua ʻia kēia maʻamau e Philips Semiconductor i ka makahiki 1986.
I2S Ikepili Lako
1. Laina uaki bit
Kapa ʻia ʻo "Continuous Serial Clock (SCK)". Kakau 'ia ma ke 'ano he "bit clock (BCLK)".
ʻO ia hoʻi, kēlā me kēia ʻikepili e pili ana i ka leo kikohoʻe, he pulse ko SCLK.
ʻO ke alapine o SCLK = 2 × laʻana pinepine × helu o nā bits sampling.
2. Laina uaki huaolelo
ʻIke ʻia ʻo "koho huaʻōlelo (WS)". [I kapa ʻia ʻo "LRCLK" a i ʻole "Frame Sync (FS)".
0 = kaila hema, 1 = kaila akau
3. Ma ka liʻiliʻi hoʻokahi laina ʻikepili i hoʻonui ʻia
Kapa ʻia ʻo "Serial Data (SD)", akā hiki ke kapa ʻia ʻo SDATA, SDIN, SDOUT, DACDAT, ADCDAT, etc.
Kiʻikuhi manawa o I²S
I2S interface: Bluetooth module
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