{"id":1019271,"date":"2025-01-01T00:00:00","date_gmt":"2025-01-01T00:00:00","guid":{"rendered":"http:\/\/&#038;p=1019271"},"modified":"2026-08-18T23:15:10","modified_gmt":"2026-08-18T23:15:10","slug":"onyx-mm-dio-sv","status":"publish","type":"product","link":"https:\/\/scn.eu\/sv\/produkt\/onyx-mm-dio-sv\/","title":{"rendered":"Onyx-MM-DIO \u2013 prisv\u00e4rd PC\/104-modul f\u00f6r digital I\/O med 48 linjer"},"content":{"rendered":"<p>Onyx-MM-DIO har 48 digitala I\/O-linjer som anv\u00e4nder 2 stycken 82C55-kretsar. Varje krets har 24 I\/O-linjer organiserade i tre 8-bitarsportar: A, B och C. Alla I\/O-linjer \u00e4r anslutna till 10 kOhm pull-up-motst\u00e5nd, och vid uppstart eller system\u00e5terst\u00e4llning \u00e5terst\u00e4lls alla portar till ing\u00e5ngsl\u00e4ge och dras till h\u00f6g niv\u00e5. Ett styrregister p\u00e5 82C55-kretsen g\u00f6r det m\u00f6jligt att programmera varje port f\u00f6r ing\u00e5ng eller utg\u00e5ng samt f\u00f6r olika driftsl\u00e4gen, inklusive grundl\u00e4ggande I\/O, stroberad I\/O och bits\u00e4ttning\/\u00e5terst\u00e4llning.  <\/p>\n<p>Drift i l\u00e4ge 0 erbjuder grundl\u00e4ggande in- och utmatningsfunktioner. Inga handskakningssignaler anv\u00e4nds. Detta \u00e4r den vanligaste metoden f\u00f6r digital I\/O och \u00e4r anv\u00e4ndbar f\u00f6r att avl\u00e4sa statussignaler, sl\u00e5 p\u00e5 och st\u00e4nga av str\u00f6mbrytare m.m. Alla tre portarna kan drivas i l\u00e4ge 0.   <\/p>\n<p>I l\u00e4ge 1 tillhandah\u00e5lls stroberad I\/O p\u00e5 portarna A och B, med handskakningssignaler p\u00e5 port C. I ing\u00e5ngsl\u00e4ge fungerar den ena signalen som en strob f\u00f6r att l\u00e5sa in data i porten, medan den andra signalen \u00e4r en bekr\u00e4ftelsesignal. I utg\u00e5ngsl\u00e4get anv\u00e4nds en signal f\u00f6r att indikera att CPU:n har skrivit nya data till porten, och en andra signal \u00e4r en bekr\u00e4ftelseing\u00e5ng. <\/p>\n<p>I l\u00e4ge 2 kan port A anv\u00e4ndas som en dubbelriktad databuss, d\u00e4r ledningarna i port C anv\u00e4nds f\u00f6r handskakning. Port A befinner sig normalt i tristate-l\u00e4ge. N\u00e4r CPU:n skriver nya data till port A indikerar en utsignal att nya data \u00e4r tillg\u00e4ngliga. Som svar p\u00e5 detta skickar den externa kretsen en bekr\u00e4ftelsignal, vilket d\u00e4rmed aktiverar utg\u00e5ngsbuffertarna p\u00e5 port A. Den externa kretsen kan ocks\u00e5 l\u00e5sa in nya data i port A med en datastrobesignal.   <\/p>\n<p>I l\u00e4get \u201dBit set\/reset\u201d kan man individuellt s\u00e4tta (1) eller \u00e5terst\u00e4lla (0) valfri bit p\u00e5 port C utan att beh\u00f6va l\u00e4sa av port C och maskera eller skydda de bitar som inte ska \u00e4ndras.<\/p>\n<p>Diamonds kostnadsfria programvara Universal Driver inneh\u00e5ller ett omfattande C-programmeringsbibliotek f\u00f6r styrning av alla digitala I\/O-funktioner. Exempelprogram medf\u00f6ljer b\u00e5de som k\u00e4llkod och som k\u00f6rbara filer f\u00f6r att hj\u00e4lpa dig att snabbt utveckla din applikation. <\/p>\n","protected":false},"excerpt":{"rendered":"<p>Onyx-MM-DIO har 48 digitala I\/O-linjer som anv\u00e4nder 2 stycken 82C55-kretsar. Varje krets har 24 I\/O-linjer organiserade i tre 8-bitarsportar: A, B och C. Alla I\/O-linjer \u00e4r anslutna till 10 kOhm pull-up-motst\u00e5nd, och vid uppstart eller system\u00e5terst\u00e4llning \u00e5terst\u00e4lls alla portar till ing\u00e5ngsl\u00e4ge och dras till h\u00f6g niv\u00e5. Ett styrregister p\u00e5 82C55-kretsen g\u00f6r det m\u00f6jligt att programmera&#8230;<\/p>\n","protected":false},"featured_media":8046121,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_kad_post_transparent":"default","_kad_post_title":"","_kad_post_layout":"default","_kad_post_sidebar_id":"","_kad_post_content_style":"default","_kad_post_vertical_padding":"default","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":""},"product_brand":[],"product_cat":[10034,10513,10507,10466,10759],"product_tag":[],"product_facet":[10813],"class_list":["post-1019271","product","type-product","status-publish","has-post-thumbnail","product_cat-digital-i-o-modules","product_cat-single-board-computer-sv","product_cat-i-o-expansion-modules-and-accessories","product_cat-industrial-computers-sv","product_cat-produkter-sv","product_facet-facet-industrial-computers","first","instock","downloadable","shipping-taxable","product-type-simple","entry","content-bg","loop-entry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Onyx-MM-DIO \u2013 prisv\u00e4rd PC\/104-modul f\u00f6r digital I\/O med 48 linjer | SCN<\/title>\n<meta name=\"description\" content=\"Onyx-MM-DIO har 48 digitala I\/O-linjer som anv\u00e4nder 2 stycken 82C55-kretsar. 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