Extensive software control of features is the highlight of this digital I\/O module featuring 48 digital I\/O lines, 3 16-bit counter\/timers, and 3 independent PC bus interrupt inputs.<\/p>\n
The 48 digital I\/O lines on Onyx-MM are based on 2 82C55 ICs. They can be programmed for input or output in groups of 8 lines. Direct as well as strobed (latched) I\/O modes are supported, and all I\/O lines are connected to 10K Ohm pull-up resistors.<\/p>\n
The 3 16-bit counter\/timers are based on an 82C54 IC. They are controlled through a configuration register on Onyx-MM (in addition to the standard 82C54 configuration register). The counter inputs can be switched between external signals, the on-board 4MHz clock oscillator, or counter outputs, all under software control. By using one counter’s output as another counter’s input, you can cascade counters in software to create a 32-bit or 48-bit counter.<\/p>\n
Onyx-MM also features programmable interrupt operations. A second software-controlled register on board configures up to 3 interrupt lines on the PC bus. Interrupts can be generated by the counter\/timer outputs, digital I\/O lines, or an external input line. This allows you to use a counter to generate bus interrupts at a programmed periodic rate, generate hardware interrupts under software control, or generate interrupts in response to an external event.<\/p>\n","protected":false},"excerpt":{"rendered":"
Extensive software control of features is the highlight of this digital I\/O module featuring 48 digital I\/O lines, 3 16-bit counter\/timers, and 3 independent PC bus interrupt inputs. The 48 digital I\/O lines on Onyx-MM are based on 2 82C55 ICs. They can be programmed for input or output in groups of 8 lines. Direct…<\/p>\n","protected":false},"featured_media":8046090,"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":[956],"product_cat":[10063,10503,10462,10755,10509],"product_tag":[],"product_facet":[10815],"class_list":{"0":"post-1019265","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-diamond-systems","7":"product_cat-digital-io-modules","8":"product_cat-io-expansion-modules-and-accessories","9":"product_cat-industrial-computers","10":"product_cat-products","11":"product_cat-single-board-computer","12":"product_facet-facet-industrial-computers","14":"first","15":"instock","16":"downloadable","17":"shipping-taxable","18":"product-type-simple","19":"entry","20":"content-bg","21":"loop-entry"},"_links":{"self":[{"href":"https:\/\/scn.eu\/fi\/wp-json\/wp\/v2\/product\/1019265","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/scn.eu\/fi\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/scn.eu\/fi\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/scn.eu\/fi\/wp-json\/wp\/v2\/comments?post=1019265"}],"version-history":[{"count":1,"href":"https:\/\/scn.eu\/fi\/wp-json\/wp\/v2\/product\/1019265\/revisions"}],"predecessor-version":[{"id":8046092,"href":"https:\/\/scn.eu\/fi\/wp-json\/wp\/v2\/product\/1019265\/revisions\/8046092"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/scn.eu\/fi\/wp-json\/wp\/v2\/media\/8046090"}],"wp:attachment":[{"href":"https:\/\/scn.eu\/fi\/wp-json\/wp\/v2\/media?parent=1019265"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/scn.eu\/fi\/wp-json\/wp\/v2\/product_brand?post=1019265"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/scn.eu\/fi\/wp-json\/wp\/v2\/product_cat?post=1019265"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/scn.eu\/fi\/wp-json\/wp\/v2\/product_tag?post=1019265"},{"taxonomy":"product_facet","embeddable":true,"href":"https:\/\/scn.eu\/fi\/wp-json\/wp\/v2\/product_facet?post=1019265"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}