{"id":45462,"date":"2023-09-28T16:31:55","date_gmt":"2023-09-28T08:31:55","guid":{"rendered":"https:\/\/www.techphant.cn\/?p=45462"},"modified":"2023-09-28T16:31:55","modified_gmt":"2023-09-28T08:31:55","slug":"dkqhgbyzjsjxnyhjs","status":"publish","type":"post","link":"https:\/\/www.techphant.cn\/blog\/45462.html","title":{"rendered":"DMA\u5f00\u542f\u548c\u5173\u95ed\uff1a\u4e00\u79cd\u8ba1\u7b97\u673a\u6027\u80fd\u4f18\u5316\u6280\u672f"},"content":{"rendered":"<p>&emsp;&emsp;DMA\uff08Direct Memory Access\uff09\uff0c\u5373\u76f4\u63a5\u5b58\u50a8\u5668\u8bbf\u95ee\uff0c\u662f\u4e00\u79cd\u8ba1\u7b97\u673a\u6027\u80fd\u4f18\u5316\u6280\u672f\uff0c\u53ef\u4ee5\u8ba9\u8ba1\u7b97\u673a\u5728\u8bbf\u95ee\u5185\u5b58\u65f6\u51cf\u5c11\u4e2d\u95f4\u6b65\u9aa4\uff0c\u63d0\u9ad8\u6027\u80fd\u548c\u8bbf\u95ee\u901f\u5ea6\u3002DMA\u5f00\u542f\u548c\u5173\u95ed\u53ef\u4ee5\u8ba9\u8ba1\u7b97\u673a\u66f4\u6709\u6548\u5730\u4f7f\u7528\u5185\u5b58\uff0c\u4f46\u662f\u5b83\u4e5f\u6709\u4e00\u4e9b\u9650\u5236\uff0c\u5fc5\u987b\u8981\u614e\u91cd\u8003\u8651\u3002\u672c\u6587\u5c06\u4ecb\u7ecdDMA\u5f00\u542f\u548c\u5173\u95ed\u7684\u5de5\u4f5c\u539f\u7406\uff0c\u4ee5\u53ca\u5982\u4f55\u4f7f\u7528\u8fd9\u9879\u6280\u672f\u6765\u63d0\u9ad8\u8ba1\u7b97\u673a\u6027\u80fd\u3002<\/p>\n<h2 style=\"text-align: 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style=\"text-align: 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center;\">\u603b\u7ed3<\/h2>\n<p>&emsp;&emsp;<strong>DMA\u662f\u4e00\u79cd\u8ba1\u7b97\u673a\u6027\u80fd\u4f18\u5316\u6280\u672f\uff0c\u53ef\u4ee5\u8ba9\u8ba1\u7b97\u673a\u5728\u8bbf\u95ee\u5185\u5b58\u65f6\u51cf\u5c11\u4e2d\u95f4\u6b65\u9aa4\uff0c\u63d0\u9ad8\u6027\u80fd\u548c\u8bbf\u95ee\u901f\u5ea6\u3002<\/strong>DMA\u5f00\u542f\u548c\u5173\u95ed\u53ef\u4ee5\u8ba9\u8ba1\u7b97\u673a\u66f4\u6709\u6548\u5730\u4f7f\u7528\u5185\u5b58\uff0c\u4f46\u662f\u4e5f\u6709\u4e00\u4e9b\u9650\u5236\uff0c\u5fc5\u987b\u8981\u614e\u91cd\u8003\u8651\u3002\u8981\u542f\u7528DMA\uff0c\u9700\u8981\u5728BIOS\u4e2d\u542f\u7528DMA\u529f\u80fd\uff0c\u5e76\u786e\u4fdd\u8ba1\u7b97\u673a\u7684\u786c\u4ef6\u8bbe\u5907\u4e5f\u5df2\u7ecf\u5f00\u542f\u4e86DMA\u529f\u80fd\u3002\u5173\u95edDMA\u53ef\u4ee5\u51cf\u5c11\u8ba1\u7b97\u673a\u7684\u5185\u5b58\u4f7f\u7528\uff0c\u4f46\u662f\u4e5f\u4f1a\u964d\u4f4e\u8ba1\u7b97\u673a\u7684\u6027\u80fd\uff0c\u56e0\u6b64\uff0c\u5728\u5173\u95edDMA\u4e4b\u524d\uff0c\u5e94\u8be5\u5148\u8003\u8651\u8ba1\u7b97\u673a\u7684\u5185\u5b58\u4f7f\u7528\u60c5\u51b5\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>DMA\uff08DirectMemoryAccess\uff09\uff0c\u5373\u76f4\u63a5\u5b58\u50a8\u5668\u8bbf\u95ee\uff0c\u662f\u4e00\u79cd\u8ba1\u7b97\u673a\u6027\u80fd\u4f18\u5316\u6280\u672f\uff0c\u53ef\u4ee5\u8ba9\u8ba1\u7b97\u673a\u5728\u8bbf\u95ee\u5185\u5b58\u65f6\u51cf\u5c11\u4e2d\u95f4\u6b65\u9aa4\uff0c\u63d0\u9ad8\u6027\u80fd\u548c\u8bbf\u95ee\u901f\u5ea6\u3002DMA\u5f00\u542f\u548c\u5173\u95ed<\/p>\n","protected":false},"author":1,"featured_media":4132,"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":[305],"class_list":["post-45462","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-dzjs"],"_links":{"self":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts\/45462","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/comments?post=45462"}],"version-history":[{"count":0,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts\/45462\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/media\/4132"}],"wp:attachment":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/media?parent=45462"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/categories?post=45462"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/tags?post=45462"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}