http://wiki.specnext.dev/index.php?action=history&feed=atom&title=Pi_GPIO_Output_Enable_Register 2026-04-24T03:24:39Z Revision history for this page on the wiki MediaWiki 1.43.5 http://wiki.specnext.dev/index.php?title=Pi_GPIO_Output_Enable_Register&diff=10987&oldid=prev 2019-11-12T10:50:50Z

<p>core 3.0 changes/refresh</p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en-GB"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 11:50, 12 November 2019</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l12">Line 12:</td> <td colspan="2" class="diff-lineno">Line 12:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Bits 31-28 are not explicitly specified in the docs, so consider them &quot;Reserved, preserve current value&quot;.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Bits 31-28 are not explicitly specified in the docs, so consider them &quot;Reserved, preserve current value&quot;.</div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; 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><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; 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><ins style="font-weight: bold; text-decoration: none;">(note: Next registers with number higher than $7F are inaccessible from Copper code)</ins></div></td></tr> <!-- diff cache key specnext_wiki:diff:1.41:old-10986:rev-10987:php=table --> </table>

Ped7g http://wiki.specnext.dev/index.php?title=Pi_GPIO_Output_Enable_Register&diff=10986&oldid=prev 2019-11-12T10:48:08Z

<p>core 3.0 changes/refresh</p> <p><b>New page</b></p><div>{{NextRegister<br /> |Number=$90-$93<br /> |Readable=Yes<br /> |Writable=Yes<br /> |ShortDesc=Enables GPIO pins output<br /> }}<br /> Bits 27-0: Set bits enable GPIO output on the corresponding GPIO pin (soft reset = all 0)<br /> <br /> GPIO pins 1:0 cannot be enabled.<br /> <br /> The register $93 is MSB (most significant byte = bits 31-24), register $90 is LSB (least significant byte = bits 7-0).<br /> <br /> Bits 31-28 are not explicitly specified in the docs, so consider them &quot;Reserved, preserve current value&quot;.</div>

Ped7g