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    <title>topic MCF5253 Bus Timing in ColdFire/68K Microcontrollers and Processors</title>
    <link>https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/MCF5253-Bus-Timing/m-p/146848#M3349</link>
    <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;Hi,&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;I'm trying to find the timing diagrams for the address/data bus on the MCF5253 (for connecting to external ram/flash etc).&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;I can't find it in any of the PDFs - they have timing diagrams for SDRAM etc but not what I'm looking for.&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;Anyone know where I can find this info ?&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;Thanks&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
    <pubDate>Wed, 14 Oct 2009 16:08:06 GMT</pubDate>
    <dc:creator>Dec</dc:creator>
    <dc:date>2009-10-14T16:08:06Z</dc:date>
    <item>
      <title>MCF5253 Bus Timing</title>
      <link>https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/MCF5253-Bus-Timing/m-p/146848#M3349</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;Hi,&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;I'm trying to find the timing diagrams for the address/data bus on the MCF5253 (for connecting to external ram/flash etc).&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;I can't find it in any of the PDFs - they have timing diagrams for SDRAM etc but not what I'm looking for.&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;Anyone know where I can find this info ?&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;Thanks&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Wed, 14 Oct 2009 16:08:06 GMT</pubDate>
      <guid>https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/MCF5253-Bus-Timing/m-p/146848#M3349</guid>
      <dc:creator>Dec</dc:creator>
      <dc:date>2009-10-14T16:08:06Z</dc:date>
    </item>
    <item>
      <title>Re: MCF5253 - Does anyone use this device ?</title>
      <link>https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/MCF5253-Bus-Timing/m-p/146849#M3350</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;I raised a service request to obtain the timing information for the external bus only to be told that it is not available.&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;Does anyone actually use the MCF5253 device with anything connected to the external bus ?&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;If timing information is not available I cannot see how anyone can design a system which uses the bus.&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;Someone must know the timings otherwise Freescale couldn't produce the eval board which has an ethernet controller on the bus.&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;Has anyone been down this route and got any more information ?&lt;/P&gt;&lt;P&gt;Anyone used the bus on this device ? If so, how ?&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;Thanks&lt;/P&gt;&lt;P&gt;Dec&lt;/P&gt;&lt;DIV class="message-edit-history"&gt;&lt;SPAN class="edit-author"&gt;Message Edited by Dec on&lt;/SPAN&gt; &lt;SPAN class="local-date"&gt;2009-10-16&lt;/SPAN&gt; &lt;SPAN class="local-time"&gt;10:48 AM&lt;/SPAN&gt;&lt;/DIV&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Fri, 16 Oct 2009 16:46:57 GMT</pubDate>
      <guid>https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/MCF5253-Bus-Timing/m-p/146849#M3350</guid>
      <dc:creator>Dec</dc:creator>
      <dc:date>2009-10-16T16:46:57Z</dc:date>
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