There is a chip ADAU1451. It uses 10 digital outputs with processing in SigmaStudio.
Each channel has a separate "RMS Limitter" block with status output.
As in SigmaStudio, all these 10 state outputs are routed to one SPI output,
so that by the SPI signal, determine which output changed from low to high?
How is this implemented in "SigmaStudio"?