{"id":1019266,"date":"2025-01-01T00:00:00","date_gmt":"2025-01-01T00:00:00","guid":{"rendered":"http:\/\/&p=1019266"},"modified":"2026-08-18T23:16:03","modified_gmt":"2026-08-18T23:16:03","slug":"onyx-mm-da","status":"publish","type":"product","link":"https:\/\/scn.eu\/da\/vare\/onyx-mm-da\/","title":{"rendered":"Onyx-MM digitalt I\/O- og t\u00e6ller-\/timer-modul til PC\/104"},"content":{"rendered":"

Den omfattende softwarestyrede kontrol af funktionerne er det mest fremtr\u00e6dende tr\u00e6k ved dette digitale I\/O-modul, der har 48 digitale I\/O-linjer, 3 16-bit t\u00e6llere\/timere og 3 uafh\u00e6ngige PC-bus-afbrydelsesindgange.<\/p>\n

De 48 digitale I\/O-linjer p\u00e5 Onyx-MM er baseret p\u00e5 2 82C55-IC\u2019er. De kan programmeres til indgang eller udgang i grupper p\u00e5 8 linjer. B\u00e5de direkte og strobed (l\u00e5st) I\/O-tilstande underst\u00f8ttes, og alle I\/O-linjer er forbundet til 10 k\u03a9 pull-up-modstande. <\/p>\n

De 3 16-bit t\u00e6llere\/timere er baseret p\u00e5 en 82C54-IC. De styres via et konfigurationsregister p\u00e5 Onyx-MM (ud over det standard 82C54-konfigurationsregister). T\u00e6llerindgangene kan skiftes mellem eksterne signaler, den indbyggede 4 MHz-klokoscillator eller t\u00e6llerudgange, alt sammen styret via software. Ved at bruge udgangen fra \u00e9n t\u00e6ller som indgang til en anden t\u00e6ller kan man kaskade t\u00e6llerne via software for at skabe en 32-bit eller 48-bit t\u00e6ller. <\/p>\n

Onyx-MM har desuden programmerbare afbrydelsesfunktioner. Et andet softwarestyret register p\u00e5 kortet konfigurerer op til 3 afbrydelseslinjer p\u00e5 PC-bussen. Afbrydelser kan genereres af t\u00e6ller-\/timerudgangene, digitale I\/O-linjer eller en ekstern indgangslinje. Dette giver dig mulighed for at bruge en t\u00e6ller til at generere busafbrydelser med en programmeret periodisk frekvens, generere hardwareafbrydelser under softwarekontrol eller generere afbrydelser som reaktion p\u00e5 en ekstern begivenhed. <\/p>\n","protected":false},"excerpt":{"rendered":"

Den omfattende softwarestyrede kontrol af funktionerne er det mest fremtr\u00e6dende tr\u00e6k ved dette digitale I\/O-modul, der har 48 digitale I\/O-linjer, 3 16-bit t\u00e6llere\/timere og 3 uafh\u00e6ngige PC-bus-afbrydelsesindgange. De 48 digitale I\/O-linjer p\u00e5 Onyx-MM er baseret p\u00e5 2 82C55-IC\u2019er. De kan programmeres til indgang eller udgang i grupper p\u00e5 8 linjer. B\u00e5de direkte og strobed (l\u00e5st)…<\/p>\n","protected":false},"featured_media":8046081,"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":[10072,10508,10501,10460,10753],"product_tag":[],"product_facet":[10814],"class_list":["post-1019266","product","type-product","status-publish","has-post-thumbnail","product_cat-digital-i-o-modules-da","product_cat-single-board-computer-da","product_cat-i-o-expansion-modules-and-accessories-da","product_cat-industrial-computers-da","product_cat-produkter","product_facet-industrial-computers","first","instock","downloadable","shipping-taxable","product-type-simple","entry","content-bg","loop-entry"],"yoast_head":"\nOnyx-MM 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