{"id":63366,"date":"2023-10-31T11:22:40","date_gmt":"2023-10-31T03:22:40","guid":{"rendered":"\/\/www.viralrail.com\/?p=63366"},"modified":"2023-10-31T11:22:40","modified_gmt":"2023-10-31T03:22:40","slug":"dssmys","status":"publish","type":"post","link":"\/\/www.viralrail.com\/blog\/63366.html","title":{"rendered":"Dio\u662f\u4ec0\u4e48\u610f\u601d\uff1f"},"content":{"rendered":"<p>&emsp;&emsp;Dio\u662f\u4e00\u4e2a\u7f51\u7edc\u672f\u8bed\uff0c\u5b83\u7684\u610f\u601d\u662f\u201cDirect Input Output\u201d\uff0c\u5b83\u662f\u4e00\u79cd\u8ba1\u7b97\u673a\u786c\u4ef6\u8bbe\u5907\u7684\u63a5\u53e3\u6807\u51c6\uff0c\u7528\u4e8e\u8fde\u63a5\u5916\u90e8\u8bbe\u5907\uff08\u5982\u952e\u76d8\u3001\u9f20\u6807\u3001\u7f51\u7edc\u63a5\u53e3\u5361\u548c\u5916\u90e8\u5b58\u50a8\u8bbe\u5907\uff09\u5230\u8ba1\u7b97\u673a\u7cfb\u7edf\u5185\u90e8\u7684\u603b\u7ebf\u7cfb\u7edf\u3002<\/p>\n<h2 style=\"text-align: center;\">DIO\u7684\u57fa\u672c\u539f\u7406<\/h2>\n<p>&emsp;&emsp;DIO\u662f\u4e00\u79cd\u9ad8\u901f\u6570\u636e\u4f20\u8f93\u6280\u672f\uff0c\u5b83\u53ef\u4ee5\u5c06\u5916\u90e8\u8bbe\u5907\u7684\u6570\u636e\u4ee5\u9ad8\u901f\u7684\u65b9\u5f0f\u4f20\u8f93\u5230\u8ba1\u7b97\u673a\u7cfb\u7edf\u5185\u90e8\u3002\u5b83\u53ef\u4ee5\u63d0\u4f9b\u9ad8\u901f\u6570\u636e\u4f20\u8f93\uff0c\u652f\u6301\u591a\u79cd\u8bbe\u5907\uff0c\u5e76\u4e14\u53ef\u4ee5\u652f\u6301\u591a\u79cd\u7c7b\u578b\u7684\u6570\u636e\uff0c\u5305\u62ec\u6587\u672c\u3001\u56fe\u50cf\u3001\u97f3\u9891\u548c\u89c6\u9891\u7b49\u3002<\/p>\n<p>&emsp;&emsp;DIO\u4f7f\u7528\u4e00\u79cd\u53eb\u505aDirect Memory Access\uff08DMA\uff09\u7684\u6280\u672f\uff0c\u5b83\u53ef\u4ee5\u5c06\u5916\u90e8\u8bbe\u5907\u7684\u6570\u636e\u76f4\u63a5\u4f20\u8f93\u5230\u8ba1\u7b97\u673a\u7cfb\u7edf\u5185\u90e8\u7684\u5185\u5b58\u4e2d\uff0c\u800c\u4e0d\u9700\u8981\u901a\u8fc7CPU\u6765\u5904\u7406\u3002\u4f7f\u7528DMA\u6280\u672f\u53ef\u4ee5\u63d0\u9ad8\u6570\u636e\u4f20\u8f93\u7684\u6548\u7387\uff0c\u63d0\u9ad8\u8ba1\u7b97\u673a\u7cfb\u7edf\u7684\u6027\u80fd\u3002<\/p>\n<h2 style=\"text-align: center;\">DIO\u7684\u5e94\u7528<\/h2>\n<p>&emsp;&emsp;DIO\u6280\u672f\u53ef\u4ee5\u7528\u4e8e\u5404\u79cd\u5e94\u7528\u573a\u666f\uff0c\u5982\u8ba1\u7b97\u673a\u7cfb\u7edf\u7684I\/O\u8bbe\u5907\uff0c\u5982\u78c1\u76d8\u9a71\u52a8\u5668\u3001\u5916\u90e8\u5b58\u50a8\u8bbe\u5907\u3001\u7f51\u7edc\u63a5\u53e3\u5361\u3001\u952e\u76d8\u548c\u9f20\u6807\u7b49\u3002\u5b83\u8fd8\u53ef\u4ee5\u7528\u4e8e\u865a\u62df\u673a\u3001\u865a\u62df\u5b58\u50a8\u5668\u548c\u7f51\u7edc\u8bbe\u5907\u7b49\u3002<\/p>\n<p>&emsp;&emsp;DIO\u6280\u672f\u8fd8\u88ab\u5e7f\u6cdb\u5e94\u7528\u4e8e\u591a\u5a92\u4f53\u8bbe\u5907\u4e2d\uff0c\u5982\u89c6\u9891\u64ad\u653e\u5668\u3001\u6e38\u620f\u673a\u3001\u6570\u5b57\u97f3\u9891\u64ad\u653e\u5668\u548c\u6570\u5b57\u7535\u89c6\u7b49\u3002\u5b83\u53ef\u4ee5\u63d0\u4f9b\u9ad8\u901f\u6570\u636e\u4f20\u8f93\uff0c\u652f\u6301\u591a\u79cd\u591a\u5a92\u4f53\u6587\u4ef6\u7684\u64ad\u653e\uff0c\u4ece\u800c\u63d0\u5347\u591a\u5a92\u4f53\u8bbe\u5907\u7684\u6027\u80fd\u3002<\/p>\n<h2 style=\"text-align: center;\">\u603b\u7ed3<\/h2>\n<p>&emsp;&emsp;<strong>DIO\u662f\u4e00\u79cd\u9ad8\u901f\u6570\u636e\u4f20\u8f93\u6280\u672f\uff0c\u5b83\u53ef\u4ee5\u5c06\u5916\u90e8\u8bbe\u5907\u7684\u6570\u636e\u4ee5\u9ad8\u901f\u7684\u65b9\u5f0f\u4f20\u8f93\u5230\u8ba1\u7b97\u673a\u7cfb\u7edf\u5185\u90e8\uff0c\u652f\u6301\u591a\u79cd\u8bbe\u5907\uff0c\u652f\u6301\u591a\u79cd\u7c7b\u578b\u7684\u6570\u636e\uff0c\u5e76\u53ef\u4ee5\u63d0\u9ad8\u8ba1\u7b97\u673a\u7cfb\u7edf\u7684\u6027\u80fd\u3002<\/strong>DIO\u6280\u672f\u53ef\u4ee5\u7528\u4e8e\u5404\u79cd\u5e94\u7528\u573a\u666f\uff0c\u5982\u8ba1\u7b97\u673a\u7cfb\u7edf\u7684I\/O\u8bbe\u5907\u3001\u865a\u62df\u673a\u3001\u865a\u62df\u5b58\u50a8\u5668\u548c\u7f51\u7edc\u8bbe\u5907\u7b49\uff0c\u4e5f\u53ef\u4ee5\u7528\u4e8e\u591a\u5a92\u4f53\u8bbe\u5907\u4e2d\uff0c\u5982\u89c6\u9891\u64ad\u653e\u5668\u3001\u6e38\u620f\u673a\u3001\u6570\u5b57\u97f3\u9891\u64ad\u653e\u5668\u548c\u6570\u5b57\u7535\u89c6\u7b49\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Dio\u662f\u4e00\u4e2a\u7f51\u7edc\u672f\u8bed\uff0c\u5b83\u7684\u610f\u601d\u662f\u201cDirectInputOutput\u201d\uff0c\u5b83\u662f\u4e00\u79cd\u8ba1\u7b97\u673a\u786c\u4ef6\u8bbe\u5907\u7684\u63a5\u53e3\u6807\u51c6\uff0c\u7528\u4e8e\u8fde\u63a5\u5916\u90e8\u8bbe\u5907\uff08\u5982\u952e\u76d8\u3001\u9f20\u6807\u3001\u7f51\u7edc\u63a5\u53e3\u5361\u548c\u5916\u90e8\u5b58\u50a8\u8bbe\u5907\uff09\u5230<\/p>\n","protected":false},"author":1,"featured_media":1839,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-global-header-display":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","footnotes":""},"categories":[36],"tags":[222],"class_list":["post-63366","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-ycio"],"_links":{"self":[{"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/posts\/63366"}],"collection":[{"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/comments?post=63366"}],"version-history":[{"count":0,"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/posts\/63366\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/media\/1839"}],"wp:attachment":[{"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/media?parent=63366"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/categories?post=63366"},{"taxonomy":"post_tag","embeddable":true,"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/tags?post=63366"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}