Protocol decoder:ac97
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| Name | AC '97 |
|---|---|
| Description | Audio and modem control for PC systems. |
| Status | supported |
| License | GPLv2+ |
| Source code | decoders/ac97 |
| Input | logic |
| Output | ac97 |
| Probes | sync, bit-clk |
| Optional probes | sdata-out, sdata-in, reset |
| Options | — |
The ac97 protocol decoder can decode the AC'97 signal between the digital controller and the audio or modem codec (which contains the audio output / analog components of the architecture).
AC'97 defines a high-quality, 16- or 20-bit audio architecture with 5.1 surround sound support for the PC. AC'97 supports a 96 kHz sampling rate at 20-bit stereo resolution and a 48 kHz sampling rate at 20-bit stereo resolution for multichannel recording and playback.
Resources
- Intel Audio Codec ‘97 spec (revision 2.3, 2002)
- Audio Codec ‘97, Intel, component spec (rev 2.3 rev 1.0 2002, same document different link)
- TI LM4550B: AC '97 Rev 2.1 Codec (example codec chip)