The I2S bus (Inter-IC Sound bus) is a 3-wire, half-duplex serial link for connecting digital audio devices in an electronic system. The bus handles audio data and clocks separately to minimize jitter that may cause data distortion in the digital analog system. Invented by Philips Semiconductor, the I2S bus is widely used by equipment and IC manufacturers.
This reference design implements an I2S transmit master or I2S receive master with a WISHBONE interface.