SDAA212 November   2025 AM620-Q1 , AM623 , AM625 , AM625-Q1 , AM62A1-Q1 , AM62A3 , AM62A3-Q1 , AM62A7 , AM62A7-Q1 , AM62D-Q1

 

  1.   1
  2.   Abstract
  3.   How to Use this Document
  4.   Trademarks
  5. 1Digital Audio Formats
    1. 1.1 I2S
    2. 1.2 TDM
  6. 2McASP Overview
  7. 3McASP Connections for AM62x Devices
    1. 3.1 McASP Common Configurations
      1. 3.1.1 McASP as a Clock Controller
        1. 3.1.1.1 Clocks Generated using the AUDIO_EXT_REFCLK AHCLK Source
      2. 3.1.2 McASP as Clock Peripheral
  8. 4McASP Layout Considerations
    1. 4.1 McASP Signals Shared with Bootmode Logic
    2. 4.2 McASP Topology for Multiple Devices in Single Clock Domain
  9. 5McASP Practical Examples
    1. 5.1 Audio Playback using AUDIO_EXT_REFCLK for Two Clock Domains
    2. 5.2 Audio Playback with External Clock Source and McASP SYNC mode
  10. 6Key Audio System Design Takeaways
  11. 7References

Abstract

Texas Instruments Audio DSP SoCs for premium audio applications feature the multichannel audio serial port (McASP). The McASP is very flexible in its configuration options to enable a variety of multi-zone and multichannel audio systems. This document provides an overview of digital audio formats, McASP configuration options, and common system implementations.