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	<title>SB-SOM: Connectors: P4 - Revision history</title>
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	<updated>2026-09-02T05:31:23Z</updated>
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		<id>https://mediawiki.compulab.com/w/index.php?title=SB-SOM:_Connectors:_P4&amp;diff=2947&amp;oldid=prev</id>
		<title>Grinberg at 16:49, 23 May 2016</title>
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		<updated>2016-05-23T16:49:24Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;== Description ==&lt;br /&gt;
[[Image:SB_SOM_topview2.jpg|thumb|right|alt=SB-SOM top view|&amp;lt;div align=&amp;quot;center&amp;quot;&amp;gt;SB-SOM top view&amp;lt;/div&amp;gt;]]&lt;br /&gt;
[[Image:SB_SOM_bottomview2.jpg|thumb|right|alt=SB-SOM bottom view|&amp;lt;div align=&amp;quot;center&amp;quot;&amp;gt;SB-SOM bottom view&amp;lt;/div&amp;gt;]]&lt;br /&gt;
&lt;br /&gt;
P4 is a 34pin 100mil header. The P4 connector allows easy, jumper-wire oriented, access to various system signals.&lt;br /&gt;
&lt;br /&gt;
The following groups of system-on-module pins can be accessed through P4.&lt;br /&gt;
#SDIO - Derived from system-on-module pins 143, 145, 147, 149, 151, 153, 155 &amp;amp; 157.&lt;br /&gt;
#SPI - Derived from system-on-module pins 52, 58, 63, 65 &amp;amp; 69.&lt;br /&gt;
#UART2 - Derived from system-on-module pins 3, 5, 7 &amp;amp; 9.&lt;br /&gt;
#I2C2 - Derived from  system-on-module pins 43 &amp;amp; 49.&lt;br /&gt;
#I2S1 - Derived from  system-on-module pins 137, 139, 143 &amp;amp; 145.&lt;br /&gt;
#MISC - Derived from system-on-module pins 15, 17, 54, 56, 60, 62, 75, 154, 167, 169, 173, 175 &amp;amp; 198.&lt;br /&gt;
{{note|Please refer to SB-SOM carrier board schematics and system-on-module hardware reference manual for pin functions, connector pinout and other details on your specific system.}}&lt;br /&gt;
&lt;br /&gt;
== Connector Data ==&lt;br /&gt;
&amp;lt;blockquote&amp;gt;&lt;br /&gt;
{| border=&amp;quot;1&amp;quot; cellspacing=&amp;quot;1&amp;quot; cellpadding=&amp;quot;3&amp;quot; style=&amp;quot;border-collapse:collapse&amp;quot;&lt;br /&gt;
! colspan=2 | P4 connector&lt;br /&gt;
|-&lt;br /&gt;
! Manufacturer&lt;br /&gt;
! MFG P/N&lt;br /&gt;
|-&lt;br /&gt;
| Jih_Vei_Electronics&lt;br /&gt;
| 21N22564-34M10B-01G-6/1.5 –C&lt;br /&gt;
|-&lt;br /&gt;
|}&lt;br /&gt;
&amp;lt;/blockquote&amp;gt;&lt;br /&gt;
&lt;br /&gt;
[[Category:SB-SOM]]&lt;/div&gt;</summary>
		<author><name>Grinberg</name></author>
		
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