{"id":1110,"date":"2020-11-14T22:06:19","date_gmt":"2020-11-14T22:06:19","guid":{"rendered":"https:\/\/pdp2011.sytse.net\/wordpress\/?page_id=1110"},"modified":"2024-03-05T14:00:54","modified_gmt":"2024-03-05T14:00:54","slug":"mncaa","status":"publish","type":"page","link":"https:\/\/pdp2011.sytse.net\/wordpress\/pdp-11\/minc\/mncaa\/","title":{"rendered":"MNCAA"},"content":{"rendered":"\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"804\" src=\"https:\/\/pdp2011.sytse.net\/wordpress\/wp-content\/uploads\/2020\/11\/Screenshot-2020-11-12-at-21.45.33-1024x804.png\" alt=\"\" class=\"wp-image-1111\" srcset=\"https:\/\/pdp2011.sytse.net\/wordpress\/wp-content\/uploads\/2020\/11\/Screenshot-2020-11-12-at-21.45.33-1024x804.png 1024w, https:\/\/pdp2011.sytse.net\/wordpress\/wp-content\/uploads\/2020\/11\/Screenshot-2020-11-12-at-21.45.33-300x236.png 300w, https:\/\/pdp2011.sytse.net\/wordpress\/wp-content\/uploads\/2020\/11\/Screenshot-2020-11-12-at-21.45.33-768x603.png 768w, https:\/\/pdp2011.sytse.net\/wordpress\/wp-content\/uploads\/2020\/11\/Screenshot-2020-11-12-at-21.45.33-1536x1207.png 1536w, https:\/\/pdp2011.sytse.net\/wordpress\/wp-content\/uploads\/2020\/11\/Screenshot-2020-11-12-at-21.45.33-1200x943.png 1200w, https:\/\/pdp2011.sytse.net\/wordpress\/wp-content\/uploads\/2020\/11\/Screenshot-2020-11-12-at-21.45.33-600x471.png 600w, https:\/\/pdp2011.sytse.net\/wordpress\/wp-content\/uploads\/2020\/11\/Screenshot-2020-11-12-at-21.45.33.png 1614w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>MNCAA is the D\/A converter. It has 4 analog output channels with 12 bit resolution. The original module has knobs on the front panel to set the voltage range for each channel, and there is also a &#8216;trick&#8217; in the 3rd channel of each module: the least significant 4 bits are also output in digital form; the idea was that if you would use MNCAA to control an analog plotter, then you could use those bits for instance to control the pen up\/pen down signal.<\/p>\n\n\n\n<p>The module is very simple in comparison to the other MINC modules. It doesn&#8217;t have a CSR, just 4 registers for the output channel values. Also it does not use interrupts. <\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">MNCAA0  171060\nMNCAA1  171070\nMNCAA2  171100\nMNCAA3  171110<\/pre>\n\n\n\n<p>There does not seem to be a limit to the number of MNCAA you can have in a system. MINC BASIC will use a maximum of 4, giving 16 D\/A output channels.<\/p>\n\n\n\n<p><strong>Information sources<\/strong><br>\nAll information on MNCAA is derived from the schematics: MP00652_MNC11_Schematics_Jul78.pdf\n<\/p>\n\n\n\n<p><strong>Missing information<\/strong><br>\nNone\n<\/p>\n\n\n\n<p><strong>Implementation status<\/strong><br>The implementation passes the VMND test program without errors, and appears to work flawlessly in MINC BASIC. The digital output on the 3rd channel is not currently implemented.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>MNCAA is the D\/A converter. It has 4 analog output channels with 12 bit resolution. The original module has knobs on the front panel to set the voltage range for each channel, and there is also a &#8216;trick&#8217; in the 3rd channel of each module: the least significant 4 bits are also output in digital [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":988,"menu_order":30,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1110","page","type-page","status-publish","hentry","missing-thumbnail"],"_links":{"self":[{"href":"https:\/\/pdp2011.sytse.net\/wordpress\/wp-json\/wp\/v2\/pages\/1110","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdp2011.sytse.net\/wordpress\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/pdp2011.sytse.net\/wordpress\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/pdp2011.sytse.net\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/pdp2011.sytse.net\/wordpress\/wp-json\/wp\/v2\/comments?post=1110"}],"version-history":[{"count":4,"href":"https:\/\/pdp2011.sytse.net\/wordpress\/wp-json\/wp\/v2\/pages\/1110\/revisions"}],"predecessor-version":[{"id":1468,"href":"https:\/\/pdp2011.sytse.net\/wordpress\/wp-json\/wp\/v2\/pages\/1110\/revisions\/1468"}],"up":[{"embeddable":true,"href":"https:\/\/pdp2011.sytse.net\/wordpress\/wp-json\/wp\/v2\/pages\/988"}],"wp:attachment":[{"href":"https:\/\/pdp2011.sytse.net\/wordpress\/wp-json\/wp\/v2\/media?parent=1110"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}