https://xboxdevwiki.net/index.php?action=history&feed=atom&title=ACI 2026-04-27T01:16:51Z Revision history for this page on the wiki MediaWiki 1.28.0 https://xboxdevwiki.net/index.php?title=ACI&diff=5765&oldid=prev 2017-06-27T01:43:19Z

<p></p> <table class="diff diff-contentalign-left" data-mw="interface"> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr style='vertical-align: top;' lang='en'> <td colspan='2' style="background-color: white; color:black; text-align: center;">← Older revision</td> <td colspan='2' style="background-color: white; color:black; text-align: center;">Revision as of 01:43, 27 June 2017</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l16" >Line 16:</td> <td colspan="2" class="diff-lineno">Line 16:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>== Related links ==</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>== Related links ==</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>* <del class="diffchange diffchange-inline">[</del>[https://github.com/JayFoxRox/xbox-tools/blob/master/python-scripts/aci.py Script to inspect ACI registers and AC97 input buffers<del class="diffchange diffchange-inline">]</del>]</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>* [https://github.com/JayFoxRox/xbox-tools/blob/master/python-scripts/aci.py Script to inspect ACI registers and AC97 input buffers]</div></td></tr> </table>

JayFoxRox https://xboxdevwiki.net/index.php?title=ACI&diff=5764&oldid=prev 2017-06-27T01:42:34Z

<p>Placeholder mostly. Link at the end is still dead - will update the repo soon.</p> <p><b>New page</b></p><div>The ACI of the Xbox provides AC97.<br /> It's similar to the AMD-768 ACI, but it is accessed through MMIO instead. The datasheet for the AMD-768 can be found at https://web.archive.org/web/20060322081039/http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/24467.pdf .<br /> <br /> The AC97 implementation only supports playback of 16-bit PCM stereo samples at 48kHz{{FIXME|reason=Not confirmed, but very likely}}.<br /> <br /> == Register addresses ==<br /> <br /> * 0x110 PCM<br /> * 0x170 SPDIF<br /> <br /> == Usage in DirectSound ==<br /> <br /> AC97 is only used to receive buffers from the [[APU]].<br /> {{FIXME|reason=I know more about this, but too lazy to write it down; JayFoxRox}}<br /> <br /> == Related links ==<br /> <br /> * [[https://github.com/JayFoxRox/xbox-tools/blob/master/python-scripts/aci.py Script to inspect ACI registers and AC97 input buffers]]</div>

JayFoxRox