{"id":136,"date":"2024-06-25T12:49:31","date_gmt":"2024-06-25T12:49:31","guid":{"rendered":"https:\/\/study.madeeasy.in\/?p=136"},"modified":"2025-09-08T11:36:51","modified_gmt":"2025-09-08T06:06:51","slug":"what-is-i-o-modules-and-its-types","status":"publish","type":"post","link":"https:\/\/www.madeeasy.in\/study\/cs-it\/what-is-i-o-modules-and-its-types","title":{"rendered":"What is I\/O Modules and its types?"},"content":{"rendered":"\r\n<p style=\"text-align: justify;\">I\/O modules allows for communication between a computer system and a peripheral device.<\/p>\r\n<p style=\"text-align: justify;\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-86 size-full aligncenter\" src=\"http:\/\/study.madeeasy.in\/wp-content\/uploads\/2024\/06\/io-module.jpg\" alt=\"I\/O Module\" width=\"288\" height=\"248\" \/><\/p>\r\n<h2 style=\"text-align: justify;\">Types of I\/O Modules<\/h2>\r\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_79_1 ez-toc-wrap-left counter-hierarchy ez-toc-counter ez-toc-light-blue ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.madeeasy.in\/study\/cs-it\/what-is-i-o-modules-and-its-types\/#Isolated-IO\" >Isolated I\/O<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.madeeasy.in\/study\/cs-it\/what-is-i-o-modules-and-its-types\/#Memory-Mapped-IO\" >Memory Mapped I\/O<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.madeeasy.in\/study\/cs-it\/what-is-i-o-modules-and-its-types\/#Interrupts-Driven-IO\" >Interrupts Driven I\/O<\/a><\/li><\/ul><\/nav><\/div>\n<h3 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Isolated-IO\"><\/span>Isolated I\/O<span class=\"ez-toc-section-end\"><\/span><\/h3>\r\n<ul style=\"text-align: justify;\">\r\n<li>When building a computer system based on these processors, the designer has the option of connecting I\/O devices to use the special I\/O address space.<\/li>\r\n<li>Separate in and out instructions to perform I\/O transfers.<\/li>\r\n<li>Separate memory and I\/O select lines needed.<\/li>\r\n<\/ul>\r\n<h3 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Memory-Mapped-IO\"><\/span>Memory Mapped I\/O<span class=\"ez-toc-section-end\"><\/span><\/h3>\r\n<ul style=\"text-align: justify;\">\r\n<li>This technique simply incorporates I\/O address space as part of memory address space.<\/li>\r\n<li>We can see memory addresses are divided and allows I\/O devices to have some addresses.<\/li>\r\n<li>In memory mapped I\/O same machine instructions used to access both memory and I\/O devices.<\/li>\r\n<\/ul>\r\n<h3 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Interrupts-Driven-IO\"><\/span>Interrupts Driven I\/O<span class=\"ez-toc-section-end\"><\/span><\/h3>\r\n<p style=\"text-align: justify;\">In interrupt driven I\/O, we can arrange for the I\/O device to alert the processor when it becomes ready. It can do so by sending a hardware signal called on interrupt to bus control line usually dedicated called a interrupt request line.<\/p>\r\n<p style=\"text-align: justify;\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-85 aligncenter\" src=\"http:\/\/study.madeeasy.in\/wp-content\/uploads\/2024\/06\/interrupts-driven.jpg\" alt=\"Interrupts Driven\" width=\"200\" height=\"261\" \/><\/p>\r\n<p style=\"text-align: justify;\">\u00a0<\/p>\r\n\r\n\r\n\r\n<p style=\"text-align: center;\"><a class=\"btn btn-danger\" role=\"button\" href=\"https:\/\/study.madeeasy.in\/cs-it\/floating-point-representation\/\" target=\"_blank\" rel=\"noopener\">&lt;&lt; Previous<\/a> | <a class=\"btn btn-success\" role=\"button\" href=\"https:\/\/study.madeeasy.in\/subjects\/what-is-computer-organization-and-architecture\/\" target=\"_blank\" rel=\"noopener\"> Next &gt;&gt;<\/a><\/p>\r\n<p>&nbsp;<\/p>\r\n","protected":false},"excerpt":{"rendered":"<p>I\/O modules allows for communication between a computer system and a peripheral device. Types of I\/O Modules Isolated I\/O When<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[51,52,53],"class_list":["post-136","post","type-post","status-publish","format-standard","hentry","category-cs-it","tag-interrupts-driven-i-o","tag-memory-mapped-i-o","tag-types-of-i-o-modules"],"_links":{"self":[{"href":"https:\/\/www.madeeasy.in\/study\/wp-json\/wp\/v2\/posts\/136","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.madeeasy.in\/study\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.madeeasy.in\/study\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.madeeasy.in\/study\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.madeeasy.in\/study\/wp-json\/wp\/v2\/comments?post=136"}],"version-history":[{"count":0,"href":"https:\/\/www.madeeasy.in\/study\/wp-json\/wp\/v2\/posts\/136\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.madeeasy.in\/study\/wp-json\/wp\/v2\/media?parent=136"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.madeeasy.in\/study\/wp-json\/wp\/v2\/categories?post=136"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.madeeasy.in\/study\/wp-json\/wp\/v2\/tags?post=136"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}