AXEL Lite SOM/AXEL Lite Hardware/Peripherals/Audio

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Version Issue Date Notes
1.0.0 Sep 2020 New documentation layout


Peripheral Audio[edit | edit source]

The Audio interface available on AXEL Lite is based on i.MX6 SoC which provides the following subsystems characteristics:

  • Audio codecs are provided by SW, which runs on ARM core, supporting (but not limited to) MP3, WMA, AAC, HE-AAC and Pro10
  • 3x SSIs
  • ESAI (Enhanced Serial Audio Interface)
  • SPDIF Tx/Rx
  • Audmux
  • Audio sample rate conversion accelerator (ASRC)

Description[edit | edit source]

The i.MX6 processor provides SSI Synchronous Serial Interface port that allow to communicate with audio codecs that implement the inter-IC sound busstandard (I2S).

The SSI has independent transmitter and receiver sections with independent clock generation and frame synchronization.

The processor also provides standard Sony/Philips Digital Interface (SPDIF) stereo transceiver that allows the processor to receive and transmit digital audio.

Pin mapping[edit | edit source]

The Pin mapping is described in the Pinout table section