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How to Save Input with pcm Frame scheme ?

Question asked by Philipp Adolph on Nov 24, 2017
Latest reply on Jan 3, 2018 by xiangjun.rong

I want to save a Input signal ( see picture) and don’t know how to configure my i2s for this scheme . I have a frame of 21 words each word 24 bit . Only the first 8 words must be saved. But the adc need the time of 21 words to transmit data again. If the framesyn takes high state the adc send the data daisy chained on the rising edge of the frame sync. How can I realize the scheme in the picture ? Thx for replie