Intel® Pentium® Silver and Intel® Celeron® Processors

Datasheet, Volume 1 of 2

ID 633935
Date 12/27/2022
Document Table of Contents

Intel® High Definition Audio (Intel® HD Audio) Controller Capabilities

The Intel® HD Audio controller is the standard audio host controller widely adopted in the PC platform, with industrial standard Intel® HD Audio driver software available for Microsoft Windows* and many other Linux* based OS. Intel® HD Audio controller features are listed as follows:

  • Supports data transfers, descriptor fetches, DMA position writes using VC0 or VC1.
  • Independent Bus Master logic for 16 general purpose DMA streams: Seven input and Nine output.
  • Supports variable length stream slots.
  • Supports up to:
    • 16 streams
      • Seven input

        — Two system streams (dedicated)

        — Two system / two offload streams (shared)

        — Two offload streams (dedicated)

        — One feedback stream

    • Nine output
      • Seven system streams
      • Two offload streams
    • 32 bits/sample
    • 192 KHz sample rate
  • Supports memory-based command/response transport.
  • Three 8-channel universal DMA interfaces for transferring data between memory buffers and peripherals and between memories
  • Supports optional Immediate Command/Response mechanism.
  • Supports output and input stream synchronization.
  • Supports global time synchronization.
  • Supports MSI interrupt delivery.
  • Support for ACPI D3 and D0 Device States.
  • Supports Function Level Reset (FLR)
  • Support Converged Platform Power Management (CPPM).
  • Support 1 ms of buffering with all DMA running with maximum bandwidth.
  • Support 10 ms of buffering with one output DMA and one input DMA running at two channels, 96 KHz, 16 bit audio.

The Input / Output Stream DMA can be individually put into coupled mode where the host and link portion of the DMA will be directed to the associated FIFO and flow-controlled automatically by HW; or put into de-coupled mode where the host and link portion of the DMA will be directed to the unique DSP buffers setup by DSP FW for inserting audio processing pipe stages.