AC'97 - Revisions


AC'97 has had several revisions:

  • AC'97 1.x compliant indicates fixed 48K sampling rate operation (non-extended feature set)
  • AC'97 2.1 compliant indicates extended audio feature set (optional variable rate, multichannel, etc.)
  • AC'97 2.2 compliant indicates extended audio, enhanced riser audio support, and optional S/PDIF
  • AC'97 2.3 compliant indicates extended configuration information and optional jack sensing support

AC '97 v2.3 enables Plug and Play audio for the end user. This revision provides means for the audio codec to supply parametric data about its analog interface much like Intel High Definition Audio.

Read more about this topic:  AC'97

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    The lore of our fathers is a fabric of sentences. In our hands it develops and changes, through more or less arbitrary and deliberate revisions and additions of our own, more or less directly occasioned by the continuing stimulation of our sense organs. It is a pale gray lore, black with fact and white with convention. But I have found no substantial reasons for concluding that there are any quite black threads in it, or any white ones.
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