http://wiki.specnext.dev/index.php?action=history&feed=atom&title=Pi_GPIO_Register 2026-04-24T03:24:47Z Revision history for this page on the wiki MediaWiki 1.43.5 http://wiki.specnext.dev/index.php?title=Pi_GPIO_Register&diff=10988&oldid=prev 2019-11-12T10:54:42Z

<p>core 3.0 changes/refresh</p> <p><b>New page</b></p><div>{{NextRegister<br /> |Number=$98-$9B<br /> |Readable=Yes<br /> |Writable=Yes<br /> |ShortDesc=GPIO pins mapped to Next Register<br /> }}<br /> Bits 27-0: Read / Write the GPIO pin state (soft reset = $00001FF)<br /> <br /> Writes only propagate when the corresponding pin has its output enabled in {{NextRegNo|$90-$93}}.<br /> <br /> The register $9B is MSB (most significant byte = bits/pins 31-24), register $98 is LSB (least significant byte = bits/pins 7-0).<br /> <br /> Bits 31-28 are not explicitly specified in the docs, so consider them &quot;Reserved, use 0&quot;.<br /> <br /> (note: Next registers with number higher than $7F are inaccessible from Copper code)</div>

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