72 lines
8.2 KiB
XML
72 lines
8.2 KiB
XML
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<svg xmlns="http://www.w3.org/2000/svg" width="1280" height="980" viewBox="0 0 1280 980" role="img" aria-labelledby="title desc">
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<title id="title">一个主机连接多个从机的 750 Mbps LVDS 物理环境</title>
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<desc id="desc">公共 12 GHz 时钟源向主机 FPGA 和多个从机 ASIC 分配时钟。每个从机只有一个 LVDS 接收端口和一个 LVDS 发送端口，与主机之间使用两对独立差分线。</desc>
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<defs>
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<marker id="tx-arrow" viewBox="0 0 10 10" refX="9" refY="5" markerWidth="9" markerHeight="9" orient="auto"><path d="M0 0 L10 5 L0 10 Z" fill="#07848c"/></marker>
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<marker id="rx-arrow" viewBox="0 0 10 10" refX="9" refY="5" markerWidth="9" markerHeight="9" orient="auto"><path d="M0 0 L10 5 L0 10 Z" fill="#d7742d"/></marker>
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<marker id="clk-arrow" viewBox="0 0 10 10" refX="9" refY="5" markerWidth="8" markerHeight="8" orient="auto"><path d="M0 0 L10 5 L0 10 Z" fill="#5972ae"/></marker>
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<filter id="shadow" x="-10%" y="-10%" width="125%" height="130%"><feDropShadow dx="0" dy="5" stdDeviation="6" flood-color="#223444" flood-opacity="0.10"/></filter>
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</defs>
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<rect width="1280" height="980" fill="#f6f8fb"/>
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<text x="640" y="47" text-anchor="middle" font-family="Microsoft YaHei, Noto Sans CJK SC, sans-serif" font-size="28" font-weight="700" fill="#17344c">多从机 LVDS 物理连接与时钟关系</text>
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<text x="640" y="79" text-anchor="middle" font-family="Microsoft YaHei, Noto Sans CJK SC, sans-serif" font-size="17" fill="#537084">每个从机仅有一个 RX 和一个 TX，分别使用一对单向 LVDS 差分线</text>
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<rect x="475" y="102" width="330" height="71" rx="17" fill="#263f72" filter="url(#shadow)"/>
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<text x="640" y="130" text-anchor="middle" font-family="Microsoft YaHei, Noto Sans CJK SC, sans-serif" font-size="16" fill="#d0ddf4">公共时钟源</text>
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<text x="640" y="158" text-anchor="middle" font-family="Microsoft YaHei, Noto Sans CJK SC, sans-serif" font-size="26" font-weight="700" fill="#ffffff">12 GHz</text>
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<path d="M640 173 V196 H250 V216" stroke="#5972ae" stroke-width="3" fill="none" marker-end="url(#clk-arrow)"/>
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<path d="M640 196 H1000 V216" stroke="#5972ae" stroke-width="3" fill="none" marker-end="url(#clk-arrow)"/>
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<rect x="105" y="220" width="290" height="71" rx="13" fill="#e8eefb" stroke="#b0bee2"/>
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<text x="250" y="247" text-anchor="middle" font-family="Microsoft YaHei, Noto Sans CJK SC, sans-serif" font-size="17" font-weight="600" fill="#304d81">主机时钟分频与分配</text>
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<text x="250" y="275" text-anchor="middle" font-family="Microsoft YaHei, Noto Sans CJK SC, sans-serif" font-size="15" fill="#304d81">/32 → 375 MHz /64 → 187.5 MHz</text>
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<rect x="855" y="220" width="290" height="71" rx="13" fill="#e8eefb" stroke="#b0bee2"/>
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<text x="1000" y="247" text-anchor="middle" font-family="Microsoft YaHei, Noto Sans CJK SC, sans-serif" font-size="17" font-weight="600" fill="#304d81">从机时钟分频与分配</text>
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<text x="1000" y="275" text-anchor="middle" font-family="Microsoft YaHei, Noto Sans CJK SC, sans-serif" font-size="18" fill="#304d81">每个从机 /16 → 750 MHz</text>
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<path d="M250 291 V341" stroke="#5972ae" stroke-width="3" fill="none" marker-end="url(#clk-arrow)"/>
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<path d="M950 291 V341" stroke="#5972ae" stroke-width="3" fill="none" marker-end="url(#clk-arrow)"/>
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<path d="M1100 291 H1240 V641 H1050 V659" stroke="#5972ae" stroke-width="3" fill="none" marker-end="url(#clk-arrow)"/>
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<rect x="47" y="348" width="400" height="560" rx="20" fill="#ffffff" stroke="#b5d0d2" stroke-width="2" filter="url(#shadow)"/>
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<rect x="47" y="348" width="400" height="91" rx="20" fill="#e3f3f3"/>
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<rect x="47" y="420" width="400" height="19" fill="#e3f3f3"/>
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<text x="247" y="385" text-anchor="middle" font-family="Microsoft YaHei, Noto Sans CJK SC, sans-serif" font-size="25" font-weight="700" fill="#155d66">主机 Master FPGA</text>
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<text x="247" y="417" text-anchor="middle" font-family="Microsoft YaHei, Noto Sans CJK SC, sans-serif" font-size="17" fill="#2f7078">375 MHz DDR · 187.5 MHz × 4 bit</text>
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<rect x="855" y="348" width="367" height="238" rx="20" fill="#ffffff" stroke="#e0c8b5" stroke-width="2" filter="url(#shadow)"/>
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<rect x="855" y="348" width="367" height="82" rx="20" fill="#fff0e3"/>
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<rect x="855" y="412" width="367" height="18" fill="#fff0e3"/>
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<text x="1038" y="382" text-anchor="middle" font-family="Microsoft YaHei, Noto Sans CJK SC, sans-serif" font-size="24" font-weight="700" fill="#85512e">从机 1 · Slave ASIC</text>
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<text x="1038" y="412" text-anchor="middle" font-family="Microsoft YaHei, Noto Sans CJK SC, sans-serif" font-size="17" fill="#a0693d">750 MHz SDR · 1 RX + 1 TX</text>
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<rect x="855" y="667" width="367" height="238" rx="20" fill="#ffffff" stroke="#e0c8b5" stroke-width="2" filter="url(#shadow)"/>
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<rect x="855" y="667" width="367" height="82" rx="20" fill="#fff0e3"/>
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<rect x="855" y="731" width="367" height="18" fill="#fff0e3"/>
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<text x="1038" y="701" text-anchor="middle" font-family="Microsoft YaHei, Noto Sans CJK SC, sans-serif" font-size="24" font-weight="700" fill="#85512e">从机 2 · Slave ASIC</text>
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<text x="1038" y="731" text-anchor="middle" font-family="Microsoft YaHei, Noto Sans CJK SC, sans-serif" font-size="17" fill="#a0693d">750 MHz SDR · 1 RX + 1 TX</text>
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<text x="70" y="479" font-family="Microsoft YaHei, Noto Sans CJK SC, sans-serif" font-size="16" font-weight="700" fill="#58737d">到从机 1</text>
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<text x="383" y="511" text-anchor="end" font-family="Microsoft YaHei, Noto Sans CJK SC, sans-serif" font-size="19" fill="#164f55">TX_1</text>
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<text x="885" y="511" font-family="Microsoft YaHei, Noto Sans CJK SC, sans-serif" font-size="19" fill="#164f55">RX</text>
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<path d="M450 503 H847" stroke="#07848c" stroke-width="5" fill="none" marker-end="url(#tx-arrow)"/>
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<text x="650" y="491" text-anchor="middle" font-family="Microsoft YaHei, Noto Sans CJK SC, sans-serif" font-size="16" fill="#07848c">主机发送 · 1 对 LVDS · 750 Mbps</text>
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<text x="383" y="557" text-anchor="end" font-family="Microsoft YaHei, Noto Sans CJK SC, sans-serif" font-size="19" fill="#995b2b">RX_1</text>
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<text x="885" y="557" font-family="Microsoft YaHei, Noto Sans CJK SC, sans-serif" font-size="19" fill="#995b2b">TX</text>
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<path d="M852 549 H455" stroke="#d7742d" stroke-width="5" fill="none" marker-end="url(#rx-arrow)"/>
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<text x="650" y="537" text-anchor="middle" font-family="Microsoft YaHei, Noto Sans CJK SC, sans-serif" font-size="16" fill="#be672c">从机发送 · 1 对 LVDS · 750 Mbps</text>
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<path d="M90 615 H405" stroke="#d7e2e8" stroke-width="2"/>
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<text x="70" y="680" font-family="Microsoft YaHei, Noto Sans CJK SC, sans-serif" font-size="16" font-weight="700" fill="#58737d">到从机 2</text>
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<text x="383" y="830" text-anchor="end" font-family="Microsoft YaHei, Noto Sans CJK SC, sans-serif" font-size="19" fill="#164f55">TX_2</text>
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<text x="885" y="830" font-family="Microsoft YaHei, Noto Sans CJK SC, sans-serif" font-size="19" fill="#164f55">RX</text>
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<path d="M450 822 H847" stroke="#07848c" stroke-width="5" fill="none" marker-end="url(#tx-arrow)"/>
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<text x="650" y="810" text-anchor="middle" font-family="Microsoft YaHei, Noto Sans CJK SC, sans-serif" font-size="16" fill="#07848c">主机发送 · 1 对 LVDS · 750 Mbps</text>
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<text x="383" y="875" text-anchor="end" font-family="Microsoft YaHei, Noto Sans CJK SC, sans-serif" font-size="19" fill="#995b2b">RX_2</text>
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<text x="885" y="875" font-family="Microsoft YaHei, Noto Sans CJK SC, sans-serif" font-size="19" fill="#995b2b">TX</text>
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<path d="M852 867 H455" stroke="#d7742d" stroke-width="5" fill="none" marker-end="url(#rx-arrow)"/>
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<text x="650" y="855" text-anchor="middle" font-family="Microsoft YaHei, Noto Sans CJK SC, sans-serif" font-size="16" fill="#be672c">从机发送 · 1 对 LVDS · 750 Mbps</text>
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<text x="640" y="948" text-anchor="middle" font-family="Microsoft YaHei, Noto Sans CJK SC, sans-serif" font-size="18" fill="#526c7e">图示 2 个从机；可扩展为 N 个。每个从机对应主机 1×TX 差分对 + 1×RX 差分对。</text>
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<text x="640" y="974" text-anchor="middle" font-family="Microsoft YaHei, Noto Sans CJK SC, sans-serif" font-size="15" fill="#647e8f">各链路独立校准 · 每条单向链路 750 Mbps · UI ≈ 1.333 ns</text>
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</svg>
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