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	<id>https://gunkies.org/index.php?action=history&amp;feed=atom&amp;title=DMP11_Synchronous_Controller</id>
	<title>DMP11 Synchronous Controller - Revision history</title>
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	<updated>2026-11-08T09:34:30Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
	<generator>MediaWiki 1.43.11</generator>
	<entry>
		<id>https://gunkies.org/w/index.php?title=DMP11_Synchronous_Controller&amp;diff=37517&amp;oldid=prev</id>
		<title>Jnc: /* External links */ Bitsavers has reorganized a bit; lost a few things in the process</title>
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		<updated>2026-10-09T01:14:09Z</updated>

		<summary type="html">&lt;p&gt;&lt;span class=&quot;autocomment&quot;&gt;External links: &lt;/span&gt; Bitsavers has reorganized a bit; lost a few things in the process&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 01:14, 9 October 2026&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l26&quot;&gt;Line 26:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 26:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==External links==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==External links==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* [http://www.bitsavers.org/pdf/dec/unibus/EK-DMP11-TM-001_DMP11_Synchronous_Controller_Technical_Manual_Sep81.pdf DMP11 Synchronous Controller Technical Manual] (EK-DMP11-TM-001)&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* [http://www.bitsavers.org/pdf/dec/unibus&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;/DMP11&lt;/ins&gt;/EK-DMP11-TM-001_DMP11_Synchronous_Controller_Technical_Manual_Sep81.pdf DMP11 Synchronous Controller Technical Manual] (EK-DMP11-TM-001)&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* [&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;http&lt;/del&gt;://&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;bitsavers&lt;/del&gt;.org/&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;pdf&lt;/del&gt;/&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;dec&lt;/del&gt;/&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;unibus&lt;/del&gt;/EK-M8207-TM-002_M8207_Microprocessor_Technical_Manual_198211.pdf M8207 Microprocessor Technical Manual] (EK-M8207-TM-002)&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* [&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;https&lt;/ins&gt;://&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;dn790003.ca.archive&lt;/ins&gt;.org/&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;0&lt;/ins&gt;/&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;items&lt;/ins&gt;/&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;bitsavers_decunibusEroprocessorTechnicalManual198211_6823248&lt;/ins&gt;/EK-M8207-TM-002_M8207_Microprocessor_Technical_Manual_198211.pdf M8207 Microprocessor Technical Manual] (EK-M8207-TM-002)&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* [http://bitsavers.org/pdf/dec/unibus/EK-M8203-TM-002_M8203_Line_Unit_Technical_Manual_198103.pdf M8203 Line Unit Technical Manual] (EK-M8203-TM-002)&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* [http://bitsavers.org/pdf/dec/unibus&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;/DMC11&lt;/ins&gt;/EK-M8203-TM-002_M8203_Line_Unit_Technical_Manual_198103.pdf M8203 Line Unit Technical Manual] (EK-M8203-TM-002)&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category: UNIBUS Synchronous Serial Interfaces]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category: UNIBUS Synchronous Serial Interfaces]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;

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		<author><name>Jnc</name></author>
	</entry>
	<entry>
		<id>https://gunkies.org/w/index.php?title=DMP11_Synchronous_Controller&amp;diff=29390&amp;oldid=prev</id>
		<title>Jnc: Covers the basics</title>
		<link rel="alternate" type="text/html" href="https://gunkies.org/w/index.php?title=DMP11_Synchronous_Controller&amp;diff=29390&amp;oldid=prev"/>
		<updated>2023-05-13T22:21:34Z</updated>

		<summary type="html">&lt;p&gt;Covers the basics&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;The &amp;#039;&amp;#039;&amp;#039;DMP11 Synchronous Controller&amp;#039;&amp;#039;&amp;#039; is a [[microprocessor]]-based intelligent multi-point [[synchronous serial line]] [[peripheral|interface]] for the [[UNIBUS]]. It uses [[Direct Memory Access|DMA]] to transfer data to and from [[main memory]]. The DMP11 can operate in either [[half-duplex]] or [[full-duplex]], at [[baud rate]]s up to 1M bits/second (half-duplex) or 512K bits/second (full-duplex); when operating as a control station, it can control up to 32 tributary stations. &lt;br /&gt;
&lt;br /&gt;
It consists of two [[DEC card form factor|hex]] boards:&lt;br /&gt;
&lt;br /&gt;
* a microprocessor module (M8207-YA)&lt;br /&gt;
* a line module (M8203), which can be configured to one of 4 choices via [[jumper]]s and [[DIP switch]]es, one of:&lt;br /&gt;
** DMP11-AA [[EIA RS-232 serial line interface|RS-232]] or [[RS-423]] or [[null modem]] (up to 9.6K bps)&lt;br /&gt;
** DMP11-AB [[V.35]]&lt;br /&gt;
** DMP11-AC integral [[modem]] (56K, 1M bps)&lt;br /&gt;
** DMP11-AE [[EIA RS-422 serial line interface|RS-422]]&lt;br /&gt;
&lt;br /&gt;
Both plug into [[Small Peripheral Controller|SPC]] slots, preferably adjacent; the two boards communicate over a BC08S [[flat cable]]. The [[device driver]] communicates with the DMP11 via four control and status [[register]]s.&lt;br /&gt;
&lt;br /&gt;
It supports [[Digital Data Communications Message Protocol|DDCMP]] (version 4.0), including support for [[cyclic redundancy check|CRCs]].&lt;br /&gt;
&lt;br /&gt;
{{semi-stub}}&lt;br /&gt;
&lt;br /&gt;
==See also==&lt;br /&gt;
&lt;br /&gt;
* [[DMR11 Synchronous Controller]]&lt;br /&gt;
&lt;br /&gt;
==Further reading==&lt;br /&gt;
&lt;br /&gt;
* &amp;#039;&amp;#039;DMP11 Field Maintenance Print Set&amp;#039;&amp;#039; (MP-00795 - not online)&lt;br /&gt;
&lt;br /&gt;
==External links==&lt;br /&gt;
&lt;br /&gt;
* [http://www.bitsavers.org/pdf/dec/unibus/EK-DMP11-TM-001_DMP11_Synchronous_Controller_Technical_Manual_Sep81.pdf DMP11 Synchronous Controller Technical Manual] (EK-DMP11-TM-001)&lt;br /&gt;
* [http://bitsavers.org/pdf/dec/unibus/EK-M8207-TM-002_M8207_Microprocessor_Technical_Manual_198211.pdf M8207 Microprocessor Technical Manual] (EK-M8207-TM-002)&lt;br /&gt;
* [http://bitsavers.org/pdf/dec/unibus/EK-M8203-TM-002_M8203_Line_Unit_Technical_Manual_198103.pdf M8203 Line Unit Technical Manual] (EK-M8203-TM-002)&lt;br /&gt;
&lt;br /&gt;
[[Category: UNIBUS Synchronous Serial Interfaces]]&lt;/div&gt;</summary>
		<author><name>Jnc</name></author>
	</entry>
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