I2S to Paralell ADC/DAC Controller

I2S to Paralell ADC/DAC Controller


Category: Communication Controller

Created: December 17, 2005

Updated: January 27, 2020

Language: VHDL

Other project properties

Development Status: Beta

Additional info: FPGA proven

WishBone compliant: No

WishBone version: n/a

License: GPL


I2S to Paralell ADC/DAC controller

This provides a bridge between a paralell device (such as a microcontroller (uC) and an I2S (!not! I2C) audio bus, generally used for ADC's and DAC's, such as in DVD & MP3 players

Nominal target is a CPLD, 128-cell variants will hold the entire project for bidirectional (ADC & DAC) operation simultaneously with 24-bit I/O's. Removing either side or reducing bus width allows operation in 64-cell devices (the core was actually tested in this configuration).

Origonally written in VHDL for Xilinx ISE - project & constraints file included.


This project may have bugs due to adaptation / cleanup from origonal production core into something of more general interest. Origonal core only used 8 of 24-bits for fitting into 64-cell devices.