Analog Devices EE-212 Connecting the AD74111 Mono Audio Codec Evaluation Board to the ADSP-21161N SHARC EZ-KIT Lite Boar

About this manual

This document provides technical guidance on connecting the AD74111 Mono Audio Codec Evaluation Board to the ADSP-21161N SHARC EZ-KIT Lite Board. It details the necessary jumper settings for both boards to ensure proper signal synchronization and ground connections between them.

The guide explains the software flow for data transmission, covering the initialization of the DSP and codec, configuration via SPORT 3, and the setup of DMA channels using chained transfers. It includes specific register values for configuring the AD74111 control registers.

What's inside

• Introduction
• Overview of the codec
• Building the hardware
• Jumper Settings on the ADSP-21161N EZ-KIT Lite Board
• Jumper Settings on the AD7411 Evaluation Board
• Software flow
• Reset of the codec
• Modes of the AD7411 codec
• Configuration of the codec with SPORT 3
• Initialization of the SPORT 3 for codec configuration

Specifications

Frequently asked questions

How is the AD74111 codec reset?

The codec is reset using Flag 0 to generate a reset signal, which must meet specific timing requirements (tRES, tRS and tRH) for 3072 MCLK periods.

What are the two modes of operation for the AD74111 codec?

The codec operates in Mixed mode (default, allows register configuration) and Data mode (only data transmission).