Description

This application report describes the use of TMS320C5402 DSP to interface to Sigmatel STAC9721 AC97 Codec. In the AC97 interface standard the codec will supply a BITCLK to a digital controller for it to generate a Frame Sync (FSYNC) that is synchronized to the received BITCLK. The digital controller in this context is the TMS320C5402 DSP and FSYNC is generated from the Sample Rate Generator (SRG