直接存储器存取 (DMA) 控制器支持将数据从一个存储器地址移到另一个存储器地址，而无需 CPU 干预。例如，DMA 可用于将数据从 ADC 转换存储器移动到 SRAM。通过使 CPU 保持在低功耗模式，而无需将其唤醒来在外设之间移动数据，DMA 降低了系统功耗。

这些器件中的 DMA 支持以下重要特性：

• 3 个独立的 DMA 传输通道
  • 1 个全功能通道 (DMA0)，支持重复传输模式
  • 2 个基本通道（DMA1、DMA2），支持单次传输模式
• 可配置的 DMA 通道的优先级
• 字节（8 位）、短字（16 位）、字（32 位）、长字（64 位）和超长字（128 位）或混合字节和字传输能力
• 传输计数器块大小支持传输高达 64k 的任何类型数据
• 可配置的 DMA 传输触发器选择
• 为其他通道提供服务的活动通道中断
• 乒乓缓冲器架构的提前中断生成
• 在另一个通道上的活动完成时级联通道
• 支持数据重组的跨步模式，例如三相计量应用
• 收集模式

var tempcontentStr='/Analog & Mixed-Signal/microcontrollers (mcus) & processors/microcontrollers/arm cortex-m0+ mcus'; var partNum ='MSPM0L1116'; var contentStr = replaceSplChars( tempcontentStr )+ "/"+ partNum; var tiContentGroup = contentStr.replace("'",""); function replaceSplChars(content){ var myRegExp=new RegExp("™|®|™","gi"); content=content.replace(myRegExp,""); return content; } var tiProductPathID='/4/5018/193120/'; var tiPageName = 'Literature reader-ZHCSXL2A-zh_CN'; var tiDocType = 'Data Sheet'; var tiLibraryStore = new com.TI.tiLibrary.tiLibraryStore(); var tiLibraryViewerStore = tiLibraryStore.viewer_store; RiotControl.addStore(tiLibraryStore); var subRoutes = riot.route.create(); subRoutes("/document-viewer/*/datasheet/*\\?*#*", function(gpn, url, params, anchor) { RiotControl.trigger("ti_library_open_viewer", { document: tiLibraryViewerStore.document, documentLocale: tiLibraryViewerStore.documentLocale, url: "/document-viewer/" + gpn + "/datasheet/" + url + "#" + anchor, toc: true, set_content: true }); }); subRoutes("/document-viewer/*/datasheet/*#*", function(gpn, url, anchor) { RiotControl.trigger("ti_library_open_viewer", { document: tiLibraryViewerStore.document, documentLocale: tiLibraryViewerStore.documentLocale, url: "/document-viewer/" + gpn + "/datasheet/" + url + "#" + anchor, toc: true, set_content: true }); }); subRoutes("/document-viewer/*/datasheet/*", function(gpn, url) { RiotControl.trigger("ti_library_open_viewer", { document: tiLibraryViewerStore.document, documentLocale: tiLibraryViewerStore.documentLocale, url: "/document-viewer/" + gpn + "/datasheet/" + url, toc: true, set_content: true }); }); subRoutes("/document-viewer/*/*/datasheet/*\\?*#*", function(locale, gpn, url, params, anchor) { RiotControl.trigger("ti_library_open_viewer", { document: tiLibraryViewerStore.document, documentLocale: tiLibraryViewerStore.documentLocale, url: "/document-viewer/" + locale + "/" + gpn + "/datasheet/" + url + "#" + anchor, toc: true, set_content: true }); }); subRoutes("/document-viewer/*/*/datasheet/*#*", function(locale, gpn, url, anchor) { RiotControl.trigger("ti_library_open_viewer", { document: tiLibraryViewerStore.document, documentLocale: tiLibraryViewerStore.documentLocale, url: "/document-viewer/" + locale + "/" + gpn + "/datasheet/" + url + "#" + anchor, toc: true, set_content: true }); }); subRoutes("/document-viewer/*/*/datasheet/*", function(locale, gpn, url) { RiotControl.trigger("ti_library_open_viewer", { document: tiLibraryViewerStore.document, documentLocale: tiLibraryViewerStore.documentLocale, url: "/document-viewer/" + locale + "/" + gpn + "/datasheet/" + url, toc: true, set_content: true }); }); subRoutes("/document-viewer/*/datasheet#*/*", function(gpn, url, fragment) { RiotControl.trigger("ti_library_open_viewer", { document: tiLibraryViewerStore.document, documentLocale: tiLibraryViewerStore.documentLocale, url: "/document-viewer/" + gpn + "/datasheet#" + url + "/" + fragment, toc: true, set_content: true }); }); subRoutes("/document-viewer/*/*/datasheet#*/*", function(locale, gpn, url, fragment) { RiotControl.trigger("ti_library_open_viewer", { document: tiLibraryViewerStore.document, documentLocale: tiLibraryViewerStore.documentLocale, url: "/document-viewer/" + locale + "/" + gpn + "/datasheet#" + url + "/" + fragment, toc: true, set_content: true }); }); subRoutes("/document-viewer/lit/html/*", function(litnum) { RiotControl.trigger("ti_library_open_viewer", { document: tiLibraryViewerStore.document, documentLocale: tiLibraryViewerStore.documentLocale, url: "/document-viewer/lit/html/" + litnum, toc: true, set_content: true }); }); subRoutes("/document-viewer/lit/html/*/*\\?*#*", function(litnum, url, params, anchor) { RiotControl.trigger("ti_library_open_viewer", { document: tiLibraryViewerStore.document, documentLocale: tiLibraryViewerStore.documentLocale, url: "/document-viewer/lit/html/" + litnum + "/" + url + "#" + anchor, toc: true, set_content: true }); }); subRoutes("/document-viewer/lit/html/*/*#*", function(litnum, url, anchor) { RiotControl.trigger("ti_library_open_viewer", { document: tiLibraryViewerStore.document, documentLocale: tiLibraryViewerStore.documentLocale, url: "/document-viewer/lit/html/" + litnum + "/" + url + "#" + anchor, toc: true, set_content: true }); }); subRoutes("/document-viewer/lit/html/*#*/*", function(litnum, url, anchor) { RiotControl.trigger("ti_library_open_viewer", { document: tiLibraryViewerStore.document, documentLocale: tiLibraryViewerStore.documentLocale, url: "/document-viewer/lit/html/" + litnum + "#" + url + "/" + anchor, toc: true, set_content: true }); }); subRoutes("/document-viewer/*/lit/html/*#*/*", function(locale, litnum, url, anchor) { RiotControl.trigger("ti_library_open_viewer", { document: tiLibraryViewerStore.document, documentLocale: tiLibraryViewerStore.documentLocale, url: "/document-viewer/" + locale + "/lit/html/" + litnum + "#" + url + "/" + anchor, toc: true, set_content: true }); }); subRoutes("/document-viewer/lit/html/*/*", function(litnum, url) { RiotControl.trigger("ti_library_open_viewer", { document: tiLibraryViewerStore.document, documentLocale: tiLibraryViewerStore.documentLocale, url: "/document-viewer/lit/html/" + litnum + "/" + url, toc: true, set_content: true }); }); subRoutes("/document-viewer/*/lit/html/*/*\\?*#*", function(locale, litnum, url, params, anchor) { RiotControl.trigger("ti_library_open_viewer", { document: tiLibraryViewerStore.document, documentLocale: tiLibraryViewerStore.documentLocale, url: "/document-viewer/" + locale + "/lit/html/" + litnum + "/" + url + "#" + anchor, toc: true, set_content: true }); }); subRoutes("/document-viewer/*/lit/html/*/*#*", function(locale, litnum, url, anchor) { RiotControl.trigger("ti_library_open_viewer", { document: tiLibraryViewerStore.document, documentLocale: tiLibraryViewerStore.documentLocale, url: "/document-viewer/" + locale + "/lit/html/" + litnum + "/" + url + "#" + anchor, toc: true, set_content: true }); }); subRoutes("/document-viewer/*/lit/html/*/*", function(locale, litnum, url) { RiotControl.trigger("ti_library_open_viewer", { document: tiLibraryViewerStore.document, documentLocale: tiLibraryViewerStore.documentLocale, url: "/document-viewer/" + locale + "/lit/html/" + litnum + "/" + url, toc: true, set_content: true }); }); var compose_url = function(q) { //URL format: scheme:[//[user[:password]@]host[:port]][/path][?query][#fragment] var tempUrl = q.url.replace("//www.ti.com.cn/", ""); var url = tempUrl.replace("//www.ti.com.cn/", ""); if (q.search != null) { var params = ""; var hash = ""; var url_parts = url.split('#'); if (url_parts.length == 2) { url = url_parts[0]; hash = url_parts[1]; } var param_parts = url.split('?'); if (param_parts.length == 2) { url = param_parts[0]; var parsed_params = param_parts[1].split('&'); var keyword_param_found = false; for (var i = 0; i < parsed_params.length; i++) { if (parsed_params[i].indexOf('search=') == 0) { keyword_param_found = true; parsed_params[i] = 'search=' + q.search; } } if (!keyword_param_found) { parsed_params.push('search=' + q.search); } params = parsed_params.join('&'); } else { params = 'search=' + q.search; } if (params > "") { url = url + '?' + params; } if (hash > "") { url = url + '#' + hash; } } return url; }; tiLibraryViewerStore.compose_url_route = function(location, q) { return compose_url(q); }; tiLibraryViewerStore.compute_content_href = function(href, url) { return url; }; tiLibraryViewerStore.compose_topic_url = function(location, q) { return compose_url(q); }; tiLibraryViewerStore.important_notice_url = "//www.ti.com.cn/document-viewer/cn/MSPM0L1116/datasheet/important_notice#ImpNotice001"; var ods_reader = riot.mount('ti-library-viewer', { store: tiLibraryStore.list_store, viewerstore: tiLibraryViewerStore }); riot.route.base('/'); riot.route.start(true); compute_document_locale = function(docName) { var locale = 'en_US'; if (docName) { if (docName.toLowerCase().indexOf('z')===0) { locale = 'zh_CN'; } else if (docName.toLowerCase().indexOf('j') == 0) { locale = 'ja_JP'; } } return locale; } open_reader = function() { var path = window.location.pathname.split('/'); var path_minus_filename = ''; for (var i = 0; i < path.length - 1; i++) { if (i == 0 && path[i] == '') { console.log("double slashes found in beginning of document path; treating document path as local machine path"); continue; } path_minus_filename += "/" + path[i]; } RiotControl.trigger("ti_library_open_viewer", { documentLocale: compute_document_locale( "ZHCSXL2A"), document: { href: path_minus_filename, lit_num: "ZHCSXL2A", doc_type: "Data Sheet", show_toc: "true", translated_doc_type: "数据表", gpn: "MSPM0L1116", title: "MSPM0L111x 混合信号微控制器", disclaimer: "本资源的原文使用英文撰写。 为方便起见，TI 提供了译文；由于翻译过程中可能使用了自动化工具，TI 不保证译文的准确性。 为确认准确性，请务必访问 ti.com 参考最新的英文版本（控制文档）。 ", product: "//www.ti.com.cn/product/cn/MSPM0L1116", email: 'mailto:?subject=MSPM0L1116 Datasheet&body=http://www.ti.com.cn/document-viewer/cn/MSPM0L1116/datasheet', download: '//www.ti.com.cn/cn/lit/gpn/MSPM0L1116', tistore: '//store.ti.com/Search.aspx?k=MSPM0L1116&pt=-1', productstatusdescription: 'PRODUCTION DATA' }, url: "/document-viewer/cn/MSPM0L1116/datasheet/GUID-9D86693F-15D2-4ED7-914E-8265BE5A4433", prepopulated: true, modalOptions: { dismissible: false } }); } open_reader();