{"id":1962,"date":"2018-05-11T19:14:04","date_gmt":"2018-05-11T18:14:04","guid":{"rendered":"https:\/\/www.domesday86.com\/?page_id=1962"},"modified":"2019-04-02T10:29:26","modified_gmt":"2019-04-02T09:29:26","slug":"acorn-65c102-co-processor-board","status":"publish","type":"page","link":"https:\/\/www.domesday86.com\/?page_id=1962","title":{"rendered":"Acorn 65C102 Co-processor board"},"content":{"rendered":"\n<p>In the following picture you can see a close-up of the 65C102 co-processor board. The major components are the 65C102 processor, the RAM and ROM and the Tube IC (that controls communication with the host computer):<\/p>\n\n\n\n<figure class=\"wp-block-image alignnone\"><a href=\"https:\/\/www.domesday86.com\/wp-content\/uploads\/2017\/01\/Acorn-65C102-Second-Processor-board.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"2153\" height=\"1614\" src=\"https:\/\/www.domesday86.com\/wp-content\/uploads\/2017\/01\/Acorn-65C102-Second-Processor-board.jpg\" alt=\"\" class=\"wp-image-388\"\/><\/a><figcaption>Acorn 65C102 Co-Processor board<\/figcaption><\/figure>\n\n\n\n<p>The 65C102 co-processor has a 65SC102 CPU clocked at 4MHz and 64Kbytes of memory.<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">Schematic diagram<\/h1>\n\n\n\n<p>The following images show the schematic diagram for the co-processor board:<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"7017\" height=\"4967\" src=\"https:\/\/www.domesday86.com\/wp-content\/uploads\/2019\/04\/Acorn-65C102-Second-Processor_Page_1.png\" alt=\"\" class=\"wp-image-2743\"\/><figcaption>Main schematic<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"7017\" height=\"4967\" src=\"https:\/\/www.domesday86.com\/wp-content\/uploads\/2019\/04\/Acorn-65C102-Second-Processor_Page_2.png\" alt=\"\" class=\"wp-image-2744\"\/><figcaption>RAM and logic<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"7017\" height=\"4967\" src=\"https:\/\/www.domesday86.com\/wp-content\/uploads\/2019\/04\/Acorn-65C102-Second-Processor_Page_3.png\" alt=\"\" class=\"wp-image-2745\"\/><figcaption>ROM<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"7017\" height=\"4967\" src=\"https:\/\/www.domesday86.com\/wp-content\/uploads\/2019\/04\/Acorn-65C102-Second-Processor_Page_4.png\" alt=\"\" class=\"wp-image-2746\"\/><figcaption>Decoupling and supply<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"7017\" height=\"4967\" src=\"https:\/\/www.domesday86.com\/wp-content\/uploads\/2019\/04\/Acorn-65C102-Second-Processor_Page_5.png\" alt=\"\" class=\"wp-image-2747\"\/><figcaption>Logic<\/figcaption><\/figure>\n\n\n\n<h1 class=\"wp-block-heading\">PCB images<\/h1>\n\n\n\n<p>The following picture shows the top-side of the co-processor's PCB (with the components removed):<\/p>\n\n\n\n<figure class=\"wp-block-image alignnone\"><a href=\"https:\/\/www.domesday86.com\/wp-content\/uploads\/2018\/05\/Acorn-65C102-PCB-Top.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"3616\" height=\"3000\" src=\"https:\/\/www.domesday86.com\/wp-content\/uploads\/2018\/05\/Acorn-65C102-PCB-Top.jpg\" alt=\"\" class=\"wp-image-1963\"\/><\/a><figcaption>Acorn 65C102 PCB top view<\/figcaption><\/figure>\n\n\n\n<p>The following picture shows the bottom-side of the co-processor's PCB:<\/p>\n\n\n\n<figure class=\"wp-block-image alignnone\"><a href=\"https:\/\/www.domesday86.com\/wp-content\/uploads\/2018\/05\/Acorn-65C102-PCB-Bottom.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"3607\" height=\"3003\" src=\"https:\/\/www.domesday86.com\/wp-content\/uploads\/2018\/05\/Acorn-65C102-PCB-Bottom.jpg\" alt=\"\" class=\"wp-image-1964\"\/><\/a><figcaption>Acorn 65C102 PCB bottom view<\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>In the following picture you can see a close-up of the 65C102 co-processor board. The major components are the 65C102 processor, the RAM and ROM and the Tube IC (that controls communication with the host computer): The 65C102 co-processor has a 65SC102 CPU clocked at 4MHz and 64Kbytes of memory. Schematic diagram The following images show the schematic diagram for <a class=\"more-link\" href=\"https:\/\/www.domesday86.com\/?page_id=1962\">Continue reading <span class=\"screen-reader-text\">  Acorn 65C102 Co-processor board<\/span><span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1962","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.domesday86.com\/index.php?rest_route=\/wp\/v2\/pages\/1962","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.domesday86.com\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.domesday86.com\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.domesday86.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.domesday86.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1962"}],"version-history":[{"count":2,"href":"https:\/\/www.domesday86.com\/index.php?rest_route=\/wp\/v2\/pages\/1962\/revisions"}],"predecessor-version":[{"id":2748,"href":"https:\/\/www.domesday86.com\/index.php?rest_route=\/wp\/v2\/pages\/1962\/revisions\/2748"}],"wp:attachment":[{"href":"https:\/\/www.domesday86.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1962"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}