https://gunkies.org/w/index.php?title=MS11-M_MOS_memory&feed=atom&action=history
MS11-M MOS memory - Revision history
2024-03-29T12:07:41Z
Revision history for this page on the wiki
MediaWiki 1.30.0
https://gunkies.org/w/index.php?title=MS11-M_MOS_memory&diff=30681&oldid=prev
Jnc: interleaving cleanup
2023-07-30T18:02:34Z
<p>interleaving cleanup</p>
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<td colspan="2" style="background-color: white; color:black; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: white; color:black; text-align: center;">Revision as of 18:02, 30 July 2023</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l15" >Line 15:</td>
<td colspan="2" class="diff-lineno">Line 15:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>==Power==</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>==Power==</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; 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;"><div>Power requirements are 3.8-4.8A of +5V; 1.2-1.5A of +5VBB; 25-50mA of -12V, on pin AS1 (depending on size, i.e. number of MOS memory chips); and .55-1 A of +12V, on pin AR1 (when active; depending on size). Note that if two MS11-M boards are [[interleaving|interleaved]], the +12V current draw can be doubled.</div></td><td class='diff-marker'>+</td><td style="color:black; 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;"><div>Power requirements are 3.8-4.8A of +5V; 1.2-1.5A of +5VBB; 25-50mA of -12V, on pin AS1 (depending on size, i.e. number of MOS memory chips); and .55-1 A of +12V, on pin AR1 (when active; depending on size). Note that if two MS11-M boards are [[<ins class="diffchange diffchange-inline">memory </ins>interleaving|interleaved]], the +12V current draw can be doubled.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; 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;"><div>The board has provision to use battery backup power to retain data during a power outage.  </div></td><td class='diff-marker'>+</td><td style="color:black; 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;"><div>The board has provision to use battery backup power to retain data during a power outage.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>==External links==</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>==External links==</div></td></tr>
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Jnc
https://gunkies.org/w/index.php?title=MS11-M_MOS_memory&diff=27696&oldid=prev
Jnc: Avoid dab
2022-09-21T19:16:51Z
<p>Avoid dab</p>
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<td colspan="2" style="background-color: white; color:black; text-align: center;">Revision as of 19:16, 21 September 2022</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l9" >Line 9:</td>
<td colspan="2" class="diff-lineno">Line 9:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>It has [[Error-correcting code|ECC]] which automagically corrects single-[[bit]] errors, (at a 70 nsec penalty in [[access time|response time]] when an error occurs) and detects double-bit errors. The memory is arranged as 4 banks, each 32 data bits wide, with 7 additional bits for the ECC. On power-on, the system is frozen (via negation of the ACLO UNIBUS signal) for up to 451 msec while the entire memory is cleared, to prevent spurious ECC errors. For [[diagnostic]] purposes, the ECC can be disabled, and there are also means for the CPU to read/write the ECC bits directly.</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>It has [[Error-correcting code|ECC]] which automagically corrects single-[[bit]] errors, (at a 70 nsec penalty in [[access time|response time]] when an error occurs) and detects double-bit errors. The memory is arranged as 4 banks, each 32 data bits wide, with 7 additional bits for the ECC. On power-on, the system is frozen (via negation of the ACLO UNIBUS signal) for up to 451 msec while the entire memory is cleared, to prevent spurious ECC errors. For [[diagnostic]] purposes, the ECC can be disabled, and there are also means for the CPU to read/write the ECC bits directly.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; 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;"><div>The [[access time]] is normally 490-525 nsec (typical/max; 620-675 nsec extra on [[refresh]] conflict), and the [[cycle time]] is 950-1000 nsec (write cycle; refresh conflict additional as above). Refresh time is 620 nsec (typical; 675 nsec maximum); the time for a complete refresh pass is 12.5 μsec (typical), or 13.75 μsec (maximum).</div></td><td class='diff-marker'>+</td><td style="color:black; 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;"><div>The [[access time]] is normally 490-525 nsec (typical/max; 620-675 nsec extra on [[<ins class="diffchange diffchange-inline">memory </ins>refresh]] conflict), and the [[cycle time]] is 950-1000 nsec (write cycle; refresh conflict additional as above). Refresh time is 620 nsec (typical; 675 nsec maximum); the time for a complete refresh pass is 12.5 μsec (typical), or 13.75 μsec (maximum).</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>It is a [[DEC card form factor|hex-height]] card; the '''MS11-MB''' holds 256 Kbytes when fully populated with 16Kx1 DRAM [[integrated circuit|chips]]; the half-populated '''MS11-MA''' contains 128 Kbytes.</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>It is a [[DEC card form factor|hex-height]] card; the '''MS11-MB''' holds 256 Kbytes when fully populated with 16Kx1 DRAM [[integrated circuit|chips]]; the half-populated '''MS11-MA''' contains 128 Kbytes.</div></td></tr>
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Jnc
https://gunkies.org/w/index.php?title=MS11-M_MOS_memory&diff=25111&oldid=prev
Jnc: more detail on -12V; manual, FMPS
2022-01-16T11:40:16Z
<p>more detail on -12V; manual, FMPS</p>
<table class="diff diff-contentalign-left" data-mw="interface">
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<td colspan="2" style="background-color: white; color:black; text-align: center;">Revision as of 11:40, 16 January 2022</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >Line 1:</td>
<td colspan="2" class="diff-lineno">Line 1:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>[[Image:MS11-M.jpg|300px|thumb|right|MS11-M board]]</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>[[Image:MS11-M.jpg|300px|thumb|right|MS11-M board]]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; 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;"><div>The '''MS11-M''' ('''M8722''') is a [[Metal Oxide Semiconductor|MOS]] [[Dynamic RAM|DRAM]] [[main memory]] card; it can be configured as either [[UNIBUS]] memory, or [[Extended UNIBUS]].</div></td><td class='diff-marker'>+</td><td style="color:black; 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;"><div>The '''MS11-M''' ('''M8722''') is a [[Metal Oxide Semiconductor|MOS]] [[Dynamic RAM|DRAM]] [[main memory]] card; it can <ins class="diffchange diffchange-inline">theoretically </ins>be configured as either [[UNIBUS]] memory, or [[Extended UNIBUS]]<ins class="diffchange diffchange-inline">. In actuality, the MS11-M uses power [[voltage]]s of +12V/-12V, unlike the normal +15V/-15V supplied by most DEC [[backplane]]s, and thus can be used in only a few installations</ins>.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; 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;"><div>When configured for UNIBUS use, it is plugged into an [[Modified UNIBUS Device|MUD]] [[backplane]] slot. '''''Note:''''' <del class="diffchange diffchange-inline">The MS11-M uses power [[voltage]]s of </del>+12V/-12V<del class="diffchange diffchange-inline">, unlike the normal +15V/-15V supplied by an MUD slot. In </del>general, the MS11-M thus cannot actually be plugged into most MUD backplanes.</div></td><td class='diff-marker'>+</td><td style="color:black; 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;"><div>When configured for UNIBUS use, it is plugged into an [[Modified UNIBUS Device|MUD]] [[backplane]] slot. '''''Note:''''' <ins class="diffchange diffchange-inline">a MUD slot does not usually provide </ins>+12V/-12V<ins class="diffchange diffchange-inline">; in </ins>general, the MS11-M thus cannot actually be plugged into most MUD backplanes.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; 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;"><div>When configured as an EUB card, it can only be plugged into the EUB slots on the [[PDP-11/24]] <del class="diffchange diffchange-inline">or </del>[[PDP-11/44]] <del class="diffchange diffchange-inline">backplanes (both of </del>which provide the correct voltages<del class="diffchange diffchange-inline">)</del>. Configuration is mostly by [[Dual Inline Package|DIP]] switches, along with two [[jumper]]s.</div></td><td class='diff-marker'>+</td><td style="color:black; 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;"><div>When configured as an EUB card, it can only be plugged into the EUB slots on <ins class="diffchange diffchange-inline">the backplanes of </ins>the [[PDP-11/24]] <ins class="diffchange diffchange-inline">(in the [[BA11-A mounting box]] '''''only''''') and the </ins>[[PDP-11/44]]<ins class="diffchange diffchange-inline">, </ins>which provide the correct voltages. Configuration is mostly by [[Dual Inline Package|DIP]] switches, along with two [[jumper]]s.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; 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;"><div>It <del class="diffchange diffchange-inline">is </del>a [[<del class="diffchange diffchange-inline">DEC card form factor</del>|<del class="diffchange diffchange-inline">hex-height</del>]] <del class="diffchange diffchange-inline">card; </del>the <del class="diffchange diffchange-inline">MS11</del>-<del class="diffchange diffchange-inline">MB holds 256 Kbytes when fully populated with 16Kx1 DRAM </del>[[<del class="diffchange diffchange-inline">integrated circuit|chips</del>]]<del class="diffchange diffchange-inline">; </del>the <del class="diffchange diffchange-inline">half-populated MS11-MA contains 128 Kbytes</del>.</div></td><td class='diff-marker'>+</td><td style="color:black; 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;"><div>It <ins class="diffchange diffchange-inline">has [[Error-correcting code|ECC]] which automagically corrects single-[[bit]] errors, (at </ins>a <ins class="diffchange diffchange-inline">70 nsec penalty in </ins>[[<ins class="diffchange diffchange-inline">access time</ins>|<ins class="diffchange diffchange-inline">response time</ins>]] <ins class="diffchange diffchange-inline">when an error occurs) and detects double-bit errors. The memory is arranged as 4 banks, each 32 data bits wide, with 7 additional bits for </ins>the <ins class="diffchange diffchange-inline">ECC. On power</ins>-<ins class="diffchange diffchange-inline">on, the system is frozen (via negation of the ACLO UNIBUS signal) for up to 451 msec while the entire memory is cleared, to prevent spurious ECC errors. For </ins>[[<ins class="diffchange diffchange-inline">diagnostic</ins>]] <ins class="diffchange diffchange-inline">purposes, </ins>the <ins class="diffchange diffchange-inline">ECC can be disabled, and there are also means for the CPU to read/write the ECC bits directly</ins>.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; 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;"><div>The [[access time]] is 490-525 nsec (typical/max; 620-675 nsec extra on [[refresh]] conflict), and the [[cycle time]] is 950-1000 nsec (write cycle; refresh conflict additional as above). Refresh time is 620 nsec (typical; 675 nsec maximum); the time for a complete refresh pass is 12.5 μsec (typical), or 13.75 μsec (maximum).</div></td><td class='diff-marker'>+</td><td style="color:black; 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;"><div>The [[access time]] is <ins class="diffchange diffchange-inline">normally </ins>490-525 nsec (typical/max; 620-675 nsec extra on [[refresh]] conflict), and the [[cycle time]] is 950-1000 nsec (write cycle; refresh conflict additional as above). Refresh time is 620 nsec (typical; 675 nsec maximum); the time for a complete refresh pass is 12.5 μsec (typical), or 13.75 μsec (maximum).</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; 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;"><div>It <del class="diffchange diffchange-inline">has </del>[[<del class="diffchange diffchange-inline">Error</del>-<del class="diffchange diffchange-inline">correcting code|ECC</del>]] <del class="diffchange diffchange-inline">which automagically corrects single</del>-[[<del class="diffchange diffchange-inline">bit]] errors, (at a 70 nsec penalty in [[access time</del>|<del class="diffchange diffchange-inline">response time</del>]] <del class="diffchange diffchange-inline">when an error occurs) and detects double</del>-<del class="diffchange diffchange-inline">bit errors. The memory is arranged as 4 banks, each 32 data bits wide, with 7 additional bits for the ECC</del>.</div></td><td class='diff-marker'>+</td><td style="color:black; 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;"><div>It <ins class="diffchange diffchange-inline">is a </ins>[[<ins class="diffchange diffchange-inline">DEC card form factor|hex</ins>-<ins class="diffchange diffchange-inline">height</ins>]] <ins class="diffchange diffchange-inline">card; the '''MS11</ins>-<ins class="diffchange diffchange-inline">MB''' holds 256 Kbytes when fully populated with 16Kx1 DRAM </ins>[[<ins class="diffchange diffchange-inline">integrated circuit</ins>|<ins class="diffchange diffchange-inline">chips</ins>]]<ins class="diffchange diffchange-inline">; the half-populated '''MS11</ins>-<ins class="diffchange diffchange-inline">MA''' contains 128 Kbytes</ins>.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; 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;"><div><del class="diffchange diffchange-inline">On power-on, the system is frozen (via negation of the ACLO UNIBUS signal) for up to 451 msec while the entire memory is cleared, to prevent spurious ECC errors. For [[diagnostic]] purposes, the ECC can be disabled, and there are also means for the CPU to read/write the ECC bits directly.</del></div></td><td class='diff-marker'>+</td><td style="color:black; 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;"><div><ins class="diffchange diffchange-inline">==Power==</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; 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;"><div><del class="diffchange diffchange-inline">The board has provision to use battery backup power to retain data during a power outage. </del>Power requirements are 3.8-4.8A of +5V<del class="diffchange diffchange-inline">, </del>1.2-1.5A of +5VBB<del class="diffchange diffchange-inline">, </del>25-50mA of -12V (depending on size, i.e. number of MOS memory chips)<del class="diffchange diffchange-inline">, </del>and .55-1 A of +<del class="diffchange diffchange-inline">12 </del>(when active; depending on size). Note that if two MS11-M boards are [[interleaving|interleaved]], the +12V current draw can be doubled.</div></td><td class='diff-marker'>+</td><td style="color:black; 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;"><div>Power requirements are 3.8-4.8A of +5V<ins class="diffchange diffchange-inline">; </ins>1.2-1.5A of +5VBB<ins class="diffchange diffchange-inline">; </ins>25-50mA of -12V<ins class="diffchange diffchange-inline">, on pin AS1 </ins>(depending on size, i.e. number of MOS memory chips)<ins class="diffchange diffchange-inline">; </ins>and .55-1 A of +<ins class="diffchange diffchange-inline">12V, on pin AR1 </ins>(when active; depending on size). Note that if two MS11-M boards are [[interleaving|interleaved]], the +12V current draw can be doubled.</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; 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;"><div> </div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; 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;"><div><ins class="diffchange diffchange-inline">The board has provision to use battery backup power to retain data during a power outage. </ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; 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;"><div> </div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; 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;"><div><ins class="diffchange diffchange-inline">==External links==</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; 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;"><div> </div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; 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;"><div><ins class="diffchange diffchange-inline">* [http://bitsavers.org/pdf/dec/pdp11/1144/EK-MS11M-UG-001_UsersMan_May79.pdf MS11-M MOS memory user guide] (EK-MS11M-UG-001)</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; 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;"><div><ins class="diffchange diffchange-inline">* [http://bitsavers.org/pdf/dec/pdp11/1144/MP00897_11X44sys_Dec79.pdf 11X44 Field Maintenance Print Set] - the MS11-M Field Maintenance Print Set (MP00742) is on pp. 238-282</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>[[Category: UNIBUS Memories]]</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>[[Category: UNIBUS Memories]]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>[[Category: EUB Memories]]</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>[[Category: EUB Memories]]</div></td></tr>
</table>
Jnc
https://gunkies.org/w/index.php?title=MS11-M_MOS_memory&diff=22012&oldid=prev
Jnc: +Image
2020-01-25T18:54:49Z
<p>+Image</p>
<table class="diff diff-contentalign-left" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
<col class="diff-content" />
<tr style="vertical-align: top;" lang="en">
<td colspan="2" style="background-color: white; color:black; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: white; color:black; text-align: center;">Revision as of 18:54, 25 January 2020</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >Line 1:</td>
<td colspan="2" class="diff-lineno">Line 1:</td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; 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;"><div><ins style="font-weight: bold; text-decoration: none;">[[Image:MS11-M.jpg|300px|thumb|right|MS11-M board]]</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; 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;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>The '''MS11-M''' ('''M8722''') is a [[Metal Oxide Semiconductor|MOS]] [[Dynamic RAM|DRAM]] [[main memory]] card; it can be configured as either [[UNIBUS]] memory, or [[Extended UNIBUS]].</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>The '''MS11-M''' ('''M8722''') is a [[Metal Oxide Semiconductor|MOS]] [[Dynamic RAM|DRAM]] [[main memory]] card; it can be configured as either [[UNIBUS]] memory, or [[Extended UNIBUS]].</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
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</table>
Jnc
https://gunkies.org/w/index.php?title=MS11-M_MOS_memory&diff=22006&oldid=prev
Jnc: current rqmts
2020-01-25T15:40:13Z
<p>current rqmts</p>
<table class="diff diff-contentalign-left" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
<col class="diff-content" />
<tr style="vertical-align: top;" lang="en">
<td colspan="2" style="background-color: white; color:black; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: white; color:black; text-align: center;">Revision as of 15:40, 25 January 2020</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >Line 1:</td>
<td colspan="2" class="diff-lineno">Line 1:</td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; 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;"><div>The '''MS11-M''' (M8722) is a [[Metal Oxide Semiconductor|MOS]] [[Dynamic RAM|DRAM]] [[main memory]] card; it can be configured as either [[UNIBUS]] memory, or [[Extended UNIBUS]].</div></td><td class='diff-marker'>+</td><td style="color:black; 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;"><div>The '''MS11-M''' (<ins class="diffchange diffchange-inline">'''</ins>M8722<ins class="diffchange diffchange-inline">'''</ins>) is a [[Metal Oxide Semiconductor|MOS]] [[Dynamic RAM|DRAM]] [[main memory]] card; it can be configured as either [[UNIBUS]] memory, or [[Extended UNIBUS]].</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>When configured for UNIBUS use, it is plugged into an [[Modified UNIBUS Device|MUD]] [[backplane]] slot. '''''Note:''''' The MS11-M uses power [[voltage]]s of +12V/-12V, unlike the normal +15V/-15V supplied by an MUD slot. In general, the MS11-M thus cannot actually be plugged into most MUD backplanes.</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>When configured for UNIBUS use, it is plugged into an [[Modified UNIBUS Device|MUD]] [[backplane]] slot. '''''Note:''''' The MS11-M uses power [[voltage]]s of +12V/-12V, unlike the normal +15V/-15V supplied by an MUD slot. In general, the MS11-M thus cannot actually be plugged into most MUD backplanes.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; 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;"><div>When configured as an EUB card, it can only be plugged into the EUB slots on the [[PDP-11/24]] or [[PDP-11/44]] backplanes (both of which provide the correct voltages).</div></td><td class='diff-marker'>+</td><td style="color:black; 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;"><div>When configured as an EUB card, it can only be plugged into the EUB slots on the [[PDP-11/24]] or [[PDP-11/44]] backplanes (both of which provide the correct voltages)<ins class="diffchange diffchange-inline">. Configuration is mostly by [[Dual Inline Package|DIP]] switches, along with two [[jumper]]s</ins>.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>It is a [[DEC card form factor|hex-height]] card; the MS11-MB holds 256 Kbytes when fully populated with 16Kx1 DRAM [[integrated circuit|chips]]; the half-populated MS11-MA contains 128 Kbytes.</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>It is a [[DEC card form factor|hex-height]] card; the MS11-MB holds 256 Kbytes when fully populated with 16Kx1 DRAM [[integrated circuit|chips]]; the half-populated MS11-MA contains 128 Kbytes.</div></td></tr>
<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l13" >Line 13:</td>
<td colspan="2" class="diff-lineno">Line 13:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>On power-on, the system is frozen (via negation of the ACLO UNIBUS signal) for up to 451 msec while the entire memory is cleared, to prevent spurious ECC errors. For [[diagnostic]] purposes, the ECC can be disabled, and there are also means for the CPU to read/write the ECC bits directly.</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>On power-on, the system is frozen (via negation of the ACLO UNIBUS signal) for up to 451 msec while the entire memory is cleared, to prevent spurious ECC errors. For [[diagnostic]] purposes, the ECC can be disabled, and there are also means for the CPU to read/write the ECC bits directly.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; 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;"><div>The board has provision to use battery backup power to retain data during a power outage. <del class="diffchange diffchange-inline">Configuration is by </del>[[<del class="diffchange diffchange-inline">Dual Inline Package</del>|<del class="diffchange diffchange-inline">DIP</del>]] <del class="diffchange diffchange-inline">switches</del>.</div></td><td class='diff-marker'>+</td><td style="color:black; 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;"><div>The board has provision to use battery backup power to retain data during a power outage. <ins class="diffchange diffchange-inline">Power requirements are 3.8-4.8A of +5V, 1.2-1.5A of +5VBB, 25-50mA of -12V (depending on size, i.e. number of MOS memory chips), and .55-1 A of +12 (when active; depending on size). Note that if two MS11-M boards are </ins>[[<ins class="diffchange diffchange-inline">interleaving</ins>|<ins class="diffchange diffchange-inline">interleaved</ins>]]<ins class="diffchange diffchange-inline">, the +12V current draw can be doubled</ins>.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>[[Category: UNIBUS Memories]]</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>[[Category: UNIBUS Memories]]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>[[Category: EUB Memories]]</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>[[Category: EUB Memories]]</div></td></tr>
</table>
Jnc
https://gunkies.org/w/index.php?title=MS11-M_MOS_memory&diff=21982&oldid=prev
Jnc: note MOS
2020-01-22T14:09:39Z
<p>note MOS</p>
<table class="diff diff-contentalign-left" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
<col class="diff-content" />
<tr style="vertical-align: top;" lang="en">
<td colspan="2" style="background-color: white; color:black; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: white; color:black; text-align: center;">Revision as of 14:09, 22 January 2020</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >Line 1:</td>
<td colspan="2" class="diff-lineno">Line 1:</td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; 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;"><div>The '''MS11-M''' (M8722) is a [[Dynamic RAM|DRAM]] [[main memory]] card; it can be configured as either [[UNIBUS]] memory, or [[Extended UNIBUS]].</div></td><td class='diff-marker'>+</td><td style="color:black; 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;"><div>The '''MS11-M''' (M8722) is a <ins class="diffchange diffchange-inline">[[Metal Oxide Semiconductor|MOS]] </ins>[[Dynamic RAM|DRAM]] [[main memory]] card; it can be configured as either [[UNIBUS]] memory, or [[Extended UNIBUS]].</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>When configured for UNIBUS use, it is plugged into an [[Modified UNIBUS Device|MUD]] [[backplane]] slot. '''''Note:''''' The MS11-M uses power [[voltage]]s of +12V/-12V, unlike the normal +15V/-15V supplied by an MUD slot. In general, the MS11-M thus cannot actually be plugged into most MUD backplanes.</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>When configured for UNIBUS use, it is plugged into an [[Modified UNIBUS Device|MUD]] [[backplane]] slot. '''''Note:''''' The MS11-M uses power [[voltage]]s of +12V/-12V, unlike the normal +15V/-15V supplied by an MUD slot. In general, the MS11-M thus cannot actually be plugged into most MUD backplanes.</div></td></tr>
<!-- diff cache key mediawiki-wiki_:diff:version:1.11a:oldid:18047:newid:21982 -->
</table>
Jnc
https://gunkies.org/w/index.php?title=MS11-M_MOS_memory&diff=18047&oldid=prev
Jnc: Correct refresh conflict increase
2018-10-17T00:26:37Z
<p>Correct refresh conflict increase</p>
<table class="diff diff-contentalign-left" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
<col class="diff-content" />
<tr style="vertical-align: top;" lang="en">
<td colspan="2" style="background-color: white; color:black; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: white; color:black; text-align: center;">Revision as of 00:26, 17 October 2018</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l7" >Line 7:</td>
<td colspan="2" class="diff-lineno">Line 7:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>It is a [[DEC card form factor|hex-height]] card; the MS11-MB holds 256 Kbytes when fully populated with 16Kx1 DRAM [[integrated circuit|chips]]; the half-populated MS11-MA contains 128 Kbytes.</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>It is a [[DEC card form factor|hex-height]] card; the MS11-MB holds 256 Kbytes when fully populated with 16Kx1 DRAM [[integrated circuit|chips]]; the half-populated MS11-MA contains 128 Kbytes.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; 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;"><div>The [[access time]] is 490 nsec (typical; <del class="diffchange diffchange-inline">525 </del>nsec <del class="diffchange diffchange-inline">maximum </del>on [[refresh]] conflict), and the [[cycle time]] is 950 nsec (<del class="diffchange diffchange-inline">1000 nsec maximum on </del>refresh conflict). Refresh time is 620 nsec (typical; 675 nsec maximum); the time for a complete refresh pass is 12.5 μsec (typical), 13.75 μsec (<del class="diffchange diffchange-inline">minimum</del>).</div></td><td class='diff-marker'>+</td><td style="color:black; 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;"><div>The [[access time]] is 490<ins class="diffchange diffchange-inline">-525 </ins>nsec (typical<ins class="diffchange diffchange-inline">/max</ins>; <ins class="diffchange diffchange-inline">620-675 </ins>nsec <ins class="diffchange diffchange-inline">extra </ins>on [[refresh]] conflict), and the [[cycle time]] is 950<ins class="diffchange diffchange-inline">-1000 </ins>nsec (<ins class="diffchange diffchange-inline">write cycle; </ins>refresh conflict <ins class="diffchange diffchange-inline">additional as above</ins>). Refresh time is 620 nsec (typical; 675 nsec maximum); the time for a complete refresh pass is 12.5 μsec (typical), <ins class="diffchange diffchange-inline">or </ins>13.75 μsec (<ins class="diffchange diffchange-inline">maximum</ins>).</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>It has [[Error-correcting code|ECC]] which automagically corrects single-[[bit]] errors, (at a 70 nsec penalty in [[access time|response time]] when an error occurs) and detects double-bit errors. The memory is arranged as 4 banks, each 32 data bits wide, with 7 additional bits for the ECC.</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>It has [[Error-correcting code|ECC]] which automagically corrects single-[[bit]] errors, (at a 70 nsec penalty in [[access time|response time]] when an error occurs) and detects double-bit errors. The memory is arranged as 4 banks, each 32 data bits wide, with 7 additional bits for the ECC.</div></td></tr>
</table>
Jnc
https://gunkies.org/w/index.php?title=MS11-M_MOS_memory&diff=18046&oldid=prev
Jnc: Add perf nos
2018-10-16T23:30:57Z
<p>Add perf nos</p>
<table class="diff diff-contentalign-left" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
<col class="diff-content" />
<tr style="vertical-align: top;" lang="en">
<td colspan="2" style="background-color: white; color:black; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: white; color:black; text-align: center;">Revision as of 23:30, 16 October 2018</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >Line 1:</td>
<td colspan="2" class="diff-lineno">Line 1:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>The '''MS11-M''' (M8722) is a [[Dynamic RAM|DRAM]] [[main memory]] card; it can be configured as either [[UNIBUS]] memory, or [[Extended UNIBUS]].</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>The '''MS11-M''' (M8722) is a [[Dynamic RAM|DRAM]] [[main memory]] card; it can be configured as either [[UNIBUS]] memory, or [[Extended UNIBUS]].</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; 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;"><div>When configured for UNIBUS use, it is plugged into an [[Modified UNIBUS Device|MUD]] [[backplane]] slot. '''''Note:''''' The MS11-M uses power [[voltage]]s of +12V/-12V, unlike the normal +15V/-15V supplied by an MUD<del class="diffchange diffchange-inline">/SPC </del>slot. In general, the MS11-M thus cannot actually be plugged into most MUD<del class="diffchange diffchange-inline">/SPC </del>backplanes.</div></td><td class='diff-marker'>+</td><td style="color:black; 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;"><div>When configured for UNIBUS use, it is plugged into an [[Modified UNIBUS Device|MUD]] [[backplane]] slot. '''''Note:''''' The MS11-M uses power [[voltage]]s of +12V/-12V, unlike the normal +15V/-15V supplied by an MUD slot. In general, the MS11-M thus cannot actually be plugged into most MUD backplanes.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>When configured as an EUB card, it can only be plugged into the EUB slots on the [[PDP-11/24]] or [[PDP-11/44]] backplanes (both of which provide the correct voltages).</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>When configured as an EUB card, it can only be plugged into the EUB slots on the [[PDP-11/24]] or [[PDP-11/44]] backplanes (both of which provide the correct voltages).</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>It is a [[DEC card form factor|hex-height]] card; the MS11-MB holds 256 Kbytes when fully populated with 16Kx1 DRAM [[integrated circuit|chips]]; the half-populated MS11-MA contains 128 Kbytes.</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>It is a [[DEC card form factor|hex-height]] card; the MS11-MB holds 256 Kbytes when fully populated with 16Kx1 DRAM [[integrated circuit|chips]]; the half-populated MS11-MA contains 128 Kbytes.</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; 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;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; 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;"><div><ins style="font-weight: bold; text-decoration: none;">The [[access time]] is 490 nsec (typical; 525 nsec maximum on [[refresh]] conflict), and the [[cycle time]] is 950 nsec (1000 nsec maximum on refresh conflict). Refresh time is 620 nsec (typical; 675 nsec maximum); the time for a complete refresh pass is 12.5 μsec (typical), 13.75 μsec (minimum).</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>It has [[Error-correcting code|ECC]] which automagically corrects single-[[bit]] errors, (at a 70 nsec penalty in [[access time|response time]] when an error occurs) and detects double-bit errors. The memory is arranged as 4 banks, each 32 data bits wide, with 7 additional bits for the ECC.</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>It has [[Error-correcting code|ECC]] which automagically corrects single-[[bit]] errors, (at a 70 nsec penalty in [[access time|response time]] when an error occurs) and detects double-bit errors. The memory is arranged as 4 banks, each 32 data bits wide, with 7 additional bits for the ECC.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>On power-on, the system is frozen (via negation of the ACLO UNIBUS signal) for up to 451 msec while the entire memory is cleared, to prevent spurious ECC errors. For [[diagnostic]] purposes, the ECC can be disabled, and there are also means for the CPU to read/write the ECC bits directly.</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>On power-on, the system is frozen (via negation of the ACLO UNIBUS signal) for up to 451 msec while the entire memory is cleared, to prevent spurious ECC errors. For [[diagnostic]] purposes, the ECC can be disabled, and there are also means for the CPU to read/write the ECC bits directly.</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; 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;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; 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;"><div><ins style="font-weight: bold; text-decoration: none;">The board has provision to use battery backup power to retain data during a power outage. Configuration is by [[Dual Inline Package|DIP]] switches.</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>[[Category: UNIBUS Memories]]</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>[[Category: UNIBUS Memories]]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>[[Category: EUB Memories]]</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>[[Category: EUB Memories]]</div></td></tr>
</table>
Jnc
https://gunkies.org/w/index.php?title=MS11-M_MOS_memory&diff=18033&oldid=prev
Jnc: Fairly complete
2018-10-16T03:33:23Z
<p>Fairly complete</p>
<p><b>New page</b></p><div>The '''MS11-M''' (M8722) is a [[Dynamic RAM|DRAM]] [[main memory]] card; it can be configured as either [[UNIBUS]] memory, or [[Extended UNIBUS]].<br />
<br />
When configured for UNIBUS use, it is plugged into an [[Modified UNIBUS Device|MUD]] [[backplane]] slot. '''''Note:''''' The MS11-M uses power [[voltage]]s of +12V/-12V, unlike the normal +15V/-15V supplied by an MUD/SPC slot. In general, the MS11-M thus cannot actually be plugged into most MUD/SPC backplanes.<br />
<br />
When configured as an EUB card, it can only be plugged into the EUB slots on the [[PDP-11/24]] or [[PDP-11/44]] backplanes (both of which provide the correct voltages).<br />
<br />
It is a [[DEC card form factor|hex-height]] card; the MS11-MB holds 256 Kbytes when fully populated with 16Kx1 DRAM [[integrated circuit|chips]]; the half-populated MS11-MA contains 128 Kbytes.<br />
<br />
It has [[Error-correcting code|ECC]] which automagically corrects single-[[bit]] errors, (at a 70 nsec penalty in [[access time|response time]] when an error occurs) and detects double-bit errors. The memory is arranged as 4 banks, each 32 data bits wide, with 7 additional bits for the ECC.<br />
<br />
On power-on, the system is frozen (via negation of the ACLO UNIBUS signal) for up to 451 msec while the entire memory is cleared, to prevent spurious ECC errors. For [[diagnostic]] purposes, the ECC can be disabled, and there are also means for the CPU to read/write the ECC bits directly.<br />
<br />
[[Category: UNIBUS Memories]]<br />
[[Category: EUB Memories]]</div>
Jnc