Intel® Core™ Ultra Processor

Datasheet, Volume 1 of 2
Supporting Intel® Core™ Ultra Processor for U/H/U-Type4-series Platforms, formerly known as Meteor Lake

ID Date Version Classification
792044 03/05/2024 Public

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Document Table of Contents

USB Audio Offload Support

USB Audio Offload provides audio mixing / processing support for USB audio endpoint connected through the xHCI Controller. This is aimed at providing a universal audio offload power benefit across various audio devices connected to the platform and USB audio usage is expected to gain more popularity with the introduction of USB Type-C* connector. These USB audio endpoint will be enumerated by the xHCI Controller SW and only the audio streaming path is peer to the Audio DSP subsystem for DSP FW mixing / processing support. USB Audio Offload capabilities are listed as follows:

  • Up to 2 audio output streams support
  • Up to 4 audio input streams support
  • Provides cadence for 44.1 kHz-based sample rate output
  • Support isochronous audio stream offload for LS / FS / HS USB audio device
  • Support synchronous / asynchronous / adaptive modes of isochronous audio streaming
  • Support non-PCM encoded audio bit stream defined by IEC61937 / IEC60958 standard
    • Packetizing into PCM sample format and PCM equivalent rates