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Intel® High Definition Audio

Learn about Intel® High Definition Audio, integrated technology for high-quality multi-channel audio experiences, including the challenges facing audio solutions, improvements over previous audio and sound cards, and enhanced features.

Intel® High Definition Audio Controller I/O Payload Settings: Spec

Document change notification covers changes made to the Intel® High Definition Audio specification for controller input/output (I/O) payload settings, with brief description of changes and new definitions.

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Intel® High Definition Audio Single Display Port: Spec

Document change notification covers changes made to the Intel® High Definition Audio specification for multi-streaming over single display port capability, with brief description of changes and new definitions.

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Reference Manual: Intel® High Definition Audio

This document is a programmer’s reference manual for Intel® I/O Controller Hub 7 (ICH7)/Intel® High Definition Audio.

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Document Change Notification: Intel® HD Audio Spec

Clarifies the Intel® High Definition Audio spec to permit controller implementations letting the codec generate a processor interrupt when there is a status change event in the codec and the controller is in reset in the D0 power state.

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Intel® High Definition Audio Low Power Capabilities: Spec

Document change notification covers changes made to the Intel® High Definition Audio low power capability specifications including clarifications and enhancements, description of functional changes, and new definitions.

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Intel® High Definition Audio RUN Bit Clear Time: Spec

Document change notification covers changes and clarifications made to the Intel® High Definition Audio RUN bit clear time specifications, with brief description of changes and new definitions.

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Intel® High Definition Audio Copy Bit Polarity: Spec

Document change notification covers changes made to the Intel® High Definition Audio specification for the COPY bit polarity reversal, with brief description of changes and new definitions.

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Intel® High Definition Audio Traffic Priority and Response: Spec

Document change notification provides errata and changes made to the Intel® High Definition Audio Traffic Priority and Immediate Response Read specifications, with brief description of changes and new definitions.

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Intel® High Definition Audio Energy Efficient Buffering: Spec

Document change notification covers changes made to the Intel® High Definition Audio specification for energy efficient buffering and dynamic FIFO limit change, with brief description of changes and new definitions.

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