I2S Interface yog dab tsi?
I²S (Inter-IC Suab) yog ib qho hluav taws xob serial tsheb npav interface tus qauv siv rau kev sib txuas cov suab digital ua ke, tus qauv no yog thawj zaug los ntawm Philips Semiconductor hauv xyoo 1986. Nws yog siv los hloov PCM cov ntaub ntawv suab ntawm kev sib txuas hauv cov khoom siv hluav taws xob.
I2S Hardware Interface
1. Ntsis moos kab
Lub npe hu ua "Continuous Serial Clock (SCK)". Feem ntau sau ua "ntsis moos (BCLK)".
Ntawd yog, txhua qhov me me ntawm cov ntaub ntawv sib raug rau cov suab digital, SCLK muaj lub mem tes.
Qhov zaus ntawm SCLK = 2 × sampling zaus × tus lej ntawm cov khoom siv.
2. Lo lus moos kab
Lub npe hu ua "lo lus xaiv (WS)". [Feem ntau hu ua "LRCLK" lossis "Frame Sync (FS)".
0 = sab laug channel, 1 = txoj cai channel
3. Yam tsawg kawg yog ib kab ntau cov ntaub ntawv
Lub npe hu ua "Serial Data (SD)", tab sis tuaj yeem hu ua SDATA, SDIN, SDOUT, DACDAT, ADCDAT, thiab lwm yam.
Timing daim duab I²S
I2S interface: Bluetooth module
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