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MITO 8M SOM/MITO 8M Hardware/Peripherals/Audio

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Revision as of 17:11, 27 October 2020 by U0009 (talk | contribs)

History
Version Issue Date Notes
1.0.0 Oct 2020 First release



Contents

Peripheral AudioEdit

The Audio interface available on MITO 8M is based on iMX8M SoC which provides the following audio subsystems:

  • Synchronous Audio Interface (SAI)
    • 6x I2S/SAI (20+ channels, each 32-bits @384 kHz)
    • Highest levels of pro audio fidelity with more than 20 audio channels each @384KHz
  • Sony/Philips Digital Interface (SPDIF)
    • S/PDIF Tx/Rx

DescriptionEdit

The I2S (or I2S) module provides a synchronous audio interface (SAI) that supports full- duplex serial interfaces with frame synchronization such as I2S, AC97, TDM, and codec/DSP interfaces. It supports the following standards and features:

  • Transmitter and receiver with independent bit clock and frame sync supporting 8 data lines
  • Each data line can support a maximum Frame size of 32 words
  • Asynchronous 128 x 32-bit FIFO for each transmit and receive data line
  • Supports packing of 8-bit and 16-bit data into each 32-bit FIFO word
  • Supports combining multiple data line FIFOs into single data line FIFO

The Sony/Philips Digital Interface (SPDIF) audio block is a stereo transceiver that allows the processor to receive and transmit digital audio.

Pin mappingEdit

The Pin mapping is described in the Pinout table section