https://gunkies.org/w/index.php?title=KT24_UNIBUS_map_option&feed=atom&action=historyKT24 UNIBUS map option - Revision history2024-03-29T06:24:29ZRevision history for this page on the wikiMediaWiki 1.30.0https://gunkies.org/w/index.php?title=KT24_UNIBUS_map_option&diff=33224&oldid=prevJnc: +New category2024-02-06T14:02:05Z<p>+New category</p>
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<td colspan="2" style="background-color: white; color:black; text-align: center;">Revision as of 14:02, 6 February 2024</td>
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<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;">[[Category: Extended UNIBUS]]</ins></div></td></tr>
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</table>Jnchttps://gunkies.org/w/index.php?title=KT24_UNIBUS_map_option&diff=25106&oldid=prevJnc: /* External links */ +manual, typo2022-01-15T11:29:14Z<p><span dir="auto"><span class="autocomment">External links: </span> +manual, typo</span></p>
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<td colspan="2" style="background-color: white; color:black; text-align: center;">Revision as of 11:29, 15 January 2022</td>
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<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>
<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>* [http://www.bitsavers.org/pdf/dec/pdp11/1124/MP01029_KT24_UNIBUS_MAP_SCHEMATICS.pdf KT24 Unibus Map Option Field Maintenance Print Set (MP01029)</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">* [http://www.bitsavers.org/pdf/dec/pdp11/1124/EK-11024-TM-001_PDP11_24_System_Technical_Manual_Jun81.pdf PDP-11/24 System Technical Manual] - the KT24 is covered in Chapter 6 (pp. 162-174)</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>* [http://www.bitsavers.org/pdf/dec/pdp11/1124/MP01029_KT24_UNIBUS_MAP_SCHEMATICS.pdf KT24 Unibus Map Option Field Maintenance Print Set<ins class="diffchange diffchange-inline">] </ins>(MP01029)</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 PDP-11s]]</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 PDP-11s]]</div></td></tr>
</table>Jnchttps://gunkies.org/w/index.php?title=KT24_UNIBUS_map_option&diff=25099&oldid=prevJnc: /* External links */ +FMPS2022-01-14T21:58:12Z<p><span dir="auto"><span class="autocomment">External links: </span> +FMPS</span></p>
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<td colspan="2" style="background-color: white; color:black; text-align: center;">Revision as of 21:58, 14 January 2022</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l8" >Line 8:</td>
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<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>If no KT24 was present, the [[Central Processing Unit|CPU]] detected its absence, and turned on a set of drivers on the CPU card which gated the [[address]] from the UNIBUS through to the EUB. (Pin FE1 of the CPU slot, "UB to MA VIA UBMAP", is connected to a pull-up on the CPU board, and also runs to the slot where the KT24 is plugged in, where it is grounded if a KT24 is plugged in; that signal is used to generate "UB to MA", which is the cross-connection enable signal.)</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>If no KT24 was present, the [[Central Processing Unit|CPU]] detected its absence, and turned on a set of drivers on the CPU card which gated the [[address]] from the UNIBUS through to the EUB. (Pin FE1 of the CPU slot, "UB to MA VIA UBMAP", is connected to a pull-up on the CPU board, and also runs to the slot where the KT24 is plugged in, where it is grounded if a KT24 is plugged in; that signal is used to generate "UB to MA", which is the cross-connection enable signal.)</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;">==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><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;">* [http://www.bitsavers.org/pdf/dec/pdp11/1124/MP01029_KT24_UNIBUS_MAP_SCHEMATICS.pdf KT24 Unibus Map Option Field Maintenance Print Set (MP01029)</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 PDP-11s]]</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 PDP-11s]]</div></td></tr>
</table>Jnchttps://gunkies.org/w/index.php?title=KT24_UNIBUS_map_option&diff=22911&oldid=prevJnc: +links2021-01-07T02:08:04Z<p>+links</p>
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<td colspan="2" style="background-color: white; color:black; text-align: center;">Revision as of 02:08, 7 January 2021</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l5" >Line 5:</td>
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<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>==UNIBUS map details==</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>==UNIBUS map details==</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 KT24 had standard UNIBUS map functionality; a set of 31 mapping [[register]] pairs in the KT24 mapped 8 Kbyte blocks of UNIBUS [[address space]] to any location within the 4 Mbyte [[main memory]] address space. A pair of [[jumper]] sets could limit the range of UNIBUS address space which was mapped; a control bit in the KT24's Last Mapped Address register causes the jumpers to be ignored, for [[diagnostic]] purposes.</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 KT24 had standard UNIBUS map functionality; a set of 31 mapping [[register]] pairs in the KT24 mapped 8 Kbyte blocks of UNIBUS [[address space]] to any location within the 4 Mbyte [[main memory]] <ins class="diffchange diffchange-inline">[[</ins>address space<ins class="diffchange diffchange-inline">]]</ins>. A pair of [[jumper]] sets could limit the range of UNIBUS address space which was mapped; a control bit in the KT24's Last Mapped Address <ins class="diffchange diffchange-inline">[[</ins>register<ins class="diffchange diffchange-inline">]] </ins>causes the jumpers to be ignored, for [[diagnostic]] purposes.</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>If no KT24 was present, the [[Central Processing Unit|CPU]] detected its absence, and turned on a set of drivers on the CPU card which gated the [[address]] from the UNIBUS through to the EUB. (Pin FE1 of the CPU slot, "UB to MA VIA UBMAP", is connected to a pull-up on the CPU board, and also runs to the slot where the KT24 is plugged in, where it is grounded if a KT24 is plugged in; that signal is used to generate "UB to MA", which is the cross-connection enable signal.)</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>If no KT24 was present, the [[Central Processing Unit|CPU]] detected its absence, and turned on a set of drivers on the CPU card which gated the [[address]] from the UNIBUS through to the EUB. (Pin FE1 of the CPU slot, "UB to MA VIA UBMAP", is connected to a pull-up on the CPU board, and also runs to the slot where the KT24 is plugged in, where it is grounded if a KT24 is plugged in; that signal is used to generate "UB to MA", which is the cross-connection enable signal.)</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 PDP-11s]]</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 PDP-11s]]</div></td></tr>
</table>Jnchttps://gunkies.org/w/index.php?title=KT24_UNIBUS_map_option&diff=22015&oldid=prevJnc: better sec title2020-01-26T14:53:58Z<p>better sec title</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;">← Older revision</td>
<td colspan="2" style="background-color: white; color:black; text-align: center;">Revision as of 14:53, 26 January 2020</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l3" >Line 3:</td>
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<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 '''KT24 UNIBUS map option''' is an option for the [[PDP-11/24]] which provided a full path between its [[UNIBUS]] and [[Extended UNIBUS]] (EUB) via a [[UNIBUS map]]. It also provided a number of other facilities, including [[chip socket]]s for a [[bootstrap]] [[PROM]] set (compatible with those of the [[M9312 ROM|M9312]]), and a [[power supply]] [[voltage]] monitor for the system. The KT24 was implemented as a single [[DEC card form factor|hex]] [[printed circuit board]], the '''M7134'''.</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 '''KT24 UNIBUS map option''' is an option for the [[PDP-11/24]] which provided a full path between its [[UNIBUS]] and [[Extended UNIBUS]] (EUB) via a [[UNIBUS map]]. It also provided a number of other facilities, including [[chip socket]]s for a [[bootstrap]] [[PROM]] set (compatible with those of the [[M9312 ROM|M9312]]), and a [[power supply]] [[voltage]] monitor for the system. The KT24 was implemented as a single [[DEC card form factor|hex]] [[printed circuit board]], the '''M7134'''.</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>==UNIBUS map==</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>==UNIBUS map <ins class="diffchange diffchange-inline">details</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>The KT24 had standard UNIBUS map functionality; a set of 31 mapping [[register]] pairs in the KT24 mapped 8 Kbyte blocks of UNIBUS [[address space]] to any location within the 4 Mbyte [[main memory]] address space. A pair of [[jumper]] sets could limit the range of UNIBUS address space which was mapped; a control bit in the KT24's Last Mapped Address register causes the jumpers to be ignored, for [[diagnostic]] purposes.</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 KT24 had standard UNIBUS map functionality; a set of 31 mapping [[register]] pairs in the KT24 mapped 8 Kbyte blocks of UNIBUS [[address space]] to any location within the 4 Mbyte [[main memory]] address space. A pair of [[jumper]] sets could limit the range of UNIBUS address space which was mapped; a control bit in the KT24's Last Mapped Address register causes the jumpers to be ignored, for [[diagnostic]] purposes.</div></td></tr>
</table>Jnchttps://gunkies.org/w/index.php?title=KT24_UNIBUS_map_option&diff=22003&oldid=prevJnc: /* UNIBUS map */ control jumpers2020-01-25T01:14:38Z<p><span dir="auto"><span class="autocomment">UNIBUS map: </span> control jumpers</span></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;">← Older revision</td>
<td colspan="2" style="background-color: white; color:black; text-align: center;">Revision as of 01:14, 25 January 2020</td>
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<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>==UNIBUS map==</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>==UNIBUS map==</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 KT24 had standard UNIBUS map functionality; a set of 31 mapping [[register]] pairs in the KT24 mapped 8 Kbyte blocks of UNIBUS [[address space]] to any location within the 4 Mbyte [[main memory]] address space.</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 KT24 had standard UNIBUS map functionality; a set of 31 mapping [[register]] pairs in the KT24 mapped 8 Kbyte blocks of UNIBUS [[address space]] to any location within the 4 Mbyte [[main memory]] address space<ins class="diffchange diffchange-inline">. A pair of [[jumper]] sets could limit the range of UNIBUS address space which was mapped; a control bit in the KT24's Last Mapped Address register causes the jumpers to be ignored, for [[diagnostic]] purposes</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>If no KT24 was present, the [[Central Processing Unit|CPU]] detected its absence, and turned on a set of drivers on the CPU card which gated the [[address]] from the UNIBUS through to the EUB. (Pin FE1 of the CPU slot, "UB to MA VIA UBMAP", is connected to a pull-up on the CPU board, and also runs to the slot where the KT24 is plugged in, where it is grounded if a KT24 is plugged in; that signal is used to generate "UB to MA", which is the cross-connection enable signal.)</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>If no KT24 was present, the [[Central Processing Unit|CPU]] detected its absence, and turned on a set of drivers on the CPU card which gated the [[address]] from the UNIBUS through to the EUB. (Pin FE1 of the CPU slot, "UB to MA VIA UBMAP", is connected to a pull-up on the CPU board, and also runs to the slot where the KT24 is plugged in, where it is grounded if a KT24 is plugged in; that signal is used to generate "UB to MA", which is the cross-connection enable signal.)</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 PDP-11s]]</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 PDP-11s]]</div></td></tr>
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</table>Jnchttps://gunkies.org/w/index.php?title=KT24_UNIBUS_map_option&diff=22000&oldid=prevJnc: +image2020-01-25T00:30:26Z<p>+image</p>
<table class="diff diff-contentalign-left" data-mw="interface">
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<col class="diff-marker" />
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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 00:30, 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:KT24.jpg|300px|thumb|right|KT24 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 '''KT24 UNIBUS map option''' is an option for the [[PDP-11/24]] which provided a full path between its [[UNIBUS]] and [[Extended UNIBUS]] (EUB) via a [[UNIBUS map]]. It also provided a number of other facilities, including [[chip socket]]s for a [[bootstrap]] [[PROM]] set (compatible with those of the [[M9312 ROM|M9312]]), and a [[power supply]] [[voltage]] monitor for the system. The KT24 was implemented as a single [[DEC card form factor|hex]] [[printed circuit board]], the '''M7134'''.</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 '''KT24 UNIBUS map option''' is an option for the [[PDP-11/24]] which provided a full path between its [[UNIBUS]] and [[Extended UNIBUS]] (EUB) via a [[UNIBUS map]]. It also provided a number of other facilities, including [[chip socket]]s for a [[bootstrap]] [[PROM]] set (compatible with those of the [[M9312 ROM|M9312]]), and a [[power supply]] [[voltage]] monitor for the system. The KT24 was implemented as a single [[DEC card form factor|hex]] [[printed circuit board]], the '''M7134'''.</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>
</table>Jnchttps://gunkies.org/w/index.php?title=KT24_UNIBUS_map_option&diff=21994&oldid=prevJnc: An OK start2020-01-24T13:38:04Z<p>An OK start</p>
<p><b>New page</b></p><div>The '''KT24 UNIBUS map option''' is an option for the [[PDP-11/24]] which provided a full path between its [[UNIBUS]] and [[Extended UNIBUS]] (EUB) via a [[UNIBUS map]]. It also provided a number of other facilities, including [[chip socket]]s for a [[bootstrap]] [[PROM]] set (compatible with those of the [[M9312 ROM|M9312]]), and a [[power supply]] [[voltage]] monitor for the system. The KT24 was implemented as a single [[DEC card form factor|hex]] [[printed circuit board]], the '''M7134'''.<br />
<br />
==UNIBUS map==<br />
<br />
The KT24 had standard UNIBUS map functionality; a set of 31 mapping [[register]] pairs in the KT24 mapped 8 Kbyte blocks of UNIBUS [[address space]] to any location within the 4 Mbyte [[main memory]] address space.<br />
<br />
If no KT24 was present, the [[Central Processing Unit|CPU]] detected its absence, and turned on a set of drivers on the CPU card which gated the [[address]] from the UNIBUS through to the EUB. (Pin FE1 of the CPU slot, "UB to MA VIA UBMAP", is connected to a pull-up on the CPU board, and also runs to the slot where the KT24 is plugged in, where it is grounded if a KT24 is plugged in; that signal is used to generate "UB to MA", which is the cross-connection enable signal.)<br />
<br />
[[Category: UNIBUS PDP-11s]]</div>Jnc