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<?xml-stylesheet type="text/xsl" href="https://devzone.nordicsemi.com/cfs-file/__key/system/syndication/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Can the address range between UICR OPT and SICR of the nRF54L15 be utilized as UICR space?</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/128779/can-the-address-range-between-uicr-opt-and-sicr-of-the-nrf54l15-be-utilized-as-uicr-space</link><description>Hi， 
 As indicated in the title, I need a relatively large memory range to write default parameters. Is this region usable? 
 nRF54L15</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Thu, 23 Jul 2026 11:22:14 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/128779/can-the-address-range-between-uicr-opt-and-sicr-of-the-nrf54l15-be-utilized-as-uicr-space" /><item><title>RE: Can the address range between UICR OPT and SICR of the nRF54L15 be utilized as UICR space?</title><link>https://devzone.nordicsemi.com/thread/569395?ContentTypeID=1</link><pubDate>Thu, 23 Jul 2026 11:22:14 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:21a7deed-433d-4013-be12-1f916804ff44</guid><dc:creator>Turbo J</dc:creator><description>&lt;p&gt;You usually can&amp;#39;t use those &amp;quot;empty&amp;quot; regions. The large gaps in address space minimizes comparators on address bits.&amp;nbsp;&lt;/p&gt;
&lt;p&gt;My NRF5340 hard faults on me trying to read past the UICR space, I would expect the NRF54x to behave in a similar way.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>