for a circular mic array application , would ideally like to support 24 microphones , but waht is the max per sport?
The ADSP-BF592 Blackfin DSP has two SPORTs with 2 data lines per SPORT, so there are a total of 4 data lines. In I2S mode, each of these data lines can support 2-channel input, so you could get up to 8 channels of data directly from the ADMP441 microphones.
There are other Blackfin processors, such as the ADSP-BF538/539 that have 4 SPORTs, so these could support up to 16 I2S microphones. Our SHARC processors have even more data lines and could support up to 32 individual I2S microphones.
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