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<div class=" wh_topic_content body "><main role="main"><article class="- topic/topic concept/concept topic concept" role="article" aria-labelledby="ariaid-title1"><span class="edit-link" style="font-size:12px; opacity:0.6; text-align:right; vertical-align:middle"><a target="_blank" href="http://172.16.35.88/tasks/jdssno1uvvbf2mltu9kb9v3if05d5gopuakboe8hlud18rma/edit/F:/aicdita/aicdita-cn/topics/ic/xspi/xspi-module.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">eXpanded Serial Peripheral Interface (xSPI)</h1><div class="date inPage">15 Jan 2025</div><div style="color: gray;">
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Read time: 1 minute(s)
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</div><div class="- topic/body concept/conbody body conbody"><p class="- topic/p p" data-ofbid="d283927e21__20250121171752">xSPI 模块是一个高度灵活和可配置的接口，能够支持多种不同的串行和并行总线协议，包括外部并行总线 Xccela、HyperBus、OPI、<span class="- topic/ph ph">QPI、和</span>1/ 2/ 4/ 8 线 SPI。xSPI 模块可与外部 PSRAM、Flash
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存储设备等元器件实现连接，无需额外的硬件接口或适配器。</p><section class="- topic/section section" id="expandedSerialPeripheralInterfaceXspi__section_elj_tkb_bzb" data-ofbid="expandedSerialPeripheralInterfaceXspi__section_elj_tkb_bzb"><h2 class="- topic/title title sectiontitle">功能特性</h2>
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<div class="- topic/p p" data-ofbid="d283927e31__20250121171752">
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<ul class="- topic/ul ul" id="expandedSerialPeripheralInterfaceXspi__ul_onr_qkb_bzb" data-ofbid="expandedSerialPeripheralInterfaceXspi__ul_onr_qkb_bzb"><li class="- topic/li li" data-ofbid="d283927e34__20250121171752">支持 Xccela 协议</li><li class="- topic/li li" data-ofbid="d283927e36__20250121171752">支持 HyperBus 协议</li><li class="- topic/li li" data-ofbid="d283927e38__20250121171752">支持 OPI 协议</li><li class="- topic/li li" data-ofbid="d283927e40__20250121171752">支持 QPI 协议</li><li class="- topic/li li" data-ofbid="d283927e42__20250121171752">支持 1/ 2/ 4/ 8 线 SPI</li><li class="- topic/li li" data-ofbid="d283927e44__20250121171752">支持 200 MHz DDR/ SDR 采样</li><li class="- topic/li li" data-ofbid="d283927e46__20250121171752">支持 XIP (eXecute In Place)</li><li class="- topic/li li" data-ofbid="d283927e48__20250121171752">支持中断以及 DMA</li><li class="- topic/li li" data-ofbid="d283927e50__20250121171752">支持两片并行读写数据</li><li class="- topic/li li" data-ofbid="d283927e52__20250121171752">支持单片 16 bits 位宽读写数据</li><li class="- topic/li li" data-ofbid="d283927e54__20250121171752">具有 16x32 bits TXFIFO 以及 16x32 bits RXFIFO</li><li class="- topic/li li" data-ofbid="d283927e57__20250121171752">具有 512 MB 内存映射空间</li></ul>
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</section><section class="- topic/section section" id="expandedSerialPeripheralInterfaceXspi__section_pnr_qkb_bzb" data-ofbid="expandedSerialPeripheralInterfaceXspi__section_pnr_qkb_bzb"><h2 class="- topic/title title sectiontitle">原理框图</h2>
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<figure class="- topic/fig fig fignone" id="expandedSerialPeripheralInterfaceXspi__fig_p1m_wkb_bzb" data-ofbid="expandedSerialPeripheralInterfaceXspi__fig_p1m_wkb_bzb"><br/><div class="imagecenter"><img class="- topic/image image imagecenter" id="expandedSerialPeripheralInterfaceXspi__image_d13_mzf_ycc" src="xspi-xspi-block.svg" width="480"/></div><br/><figcaption data-caption-side="bottom" class="- topic/title title figcapcenter"><span class="figtitleprefix fig--title-label">图<span class="fig--title-label-number"> 1</span><span class="fig--title-label-punctuation">. </span></span><span class="fig--title">xspi_block</span></figcaption></figure>
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<div class=" wh_topic_toc "><div class="wh_topic_label">在本页上</div><ul><li class="section-item"><div class="section-title"><a href="#expandedSerialPeripheralInterfaceXspi__section_elj_tkb_bzb" data-tocid="expandedSerialPeripheralInterfaceXspi__section_elj_tkb_bzb">功能特性</a></div></li><li class="section-item"><div class="section-title"><a href="#expandedSerialPeripheralInterfaceXspi__section_pnr_qkb_bzb" data-tocid="expandedSerialPeripheralInterfaceXspi__section_pnr_qkb_bzb">原理框图</a></div></li></ul></div>
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