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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>Three TWI instances</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/22717/three-twi-instances</link><description>I noticed that there can be three SPI instances (SPI0, SPI1, SPI2) for the nRF52. Is it possible to have three TWI instances? We have a sensor network that requires 6 of the same type of I2C sensor. If not, is there a way to reassign the TWI SDA and SCL</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Mon, 12 Jun 2017 16:34:27 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/22717/three-twi-instances" /><item><title>RE: Three TWI instances</title><link>https://devzone.nordicsemi.com/thread/89313?ContentTypeID=1</link><pubDate>Mon, 12 Jun 2017 16:34:27 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:3f9ef31c-7b94-4bb8-83bd-b776fa4d8035</guid><dc:creator>Turbo J</dc:creator><description>&lt;blockquote&gt;
&lt;p&gt;Is it possible to have three TWI instances&lt;/p&gt;
&lt;/blockquote&gt;
&lt;p&gt;Nope. Only two TWI instances are on-chip.&lt;/p&gt;
&lt;blockquote&gt;
&lt;p&gt;If not, is there a way to reassign the TWI SDA and SCL lines&lt;/p&gt;
&lt;/blockquote&gt;
&lt;p&gt;Just reconfigure &lt;code&gt;PSEL.SDA&lt;/code&gt; and &lt;code&gt;PSEL.SCL&lt;/code&gt; registers. The bus must be idle, of course.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>