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\n\u70b9 \u8bc4\uff1a\u9664\u4e86\u5c11\u6570\u7279\u5b9a\u4fe1\u53f7\u5916\uff08\u5982100BASE-T\u3001CML\uff09\uff0c\u90fd\u662f\u6709\u8fc7\u51b2\u7684\uff0c\u53ea\u8981\u4e0d\u662f\u5f88\u5927\uff0c\u5e76\u4e0d\u4e00\u5b9a\u90fd\u9700\u8981\u5339\u914d\uff0c\u5373\u4f7f\u5339\u914d\u4e5f\u5e76\u975e\u8981\u5339\u914d\u5f97\u6700\u597d\u3002\u8c61TTL\u7684\u8f93 \u51fa\u963b\u6297\u4e0d\u523050\u6b27\u59c6\uff0c\u6709\u7684\u751a\u81f320\u6b27\u59c6\uff0c\u5982\u679c\u4e5f\u7528\u8fd9\u4e48\u5927\u7684\u5339\u914d\u7535\u963b\u7684\u8bdd\uff0c\u90a3\u7535\u6d41\u5c31\u975e\u5e38\u5927\u4e86\uff0c\u529f\u8017\u662f\u65e0\u6cd5\u63a5\u53d7\u7684\uff0c\u53e6\u5916\u4fe1\u53f7\u5e45\u5ea6\u4e5f\u5c06\u5c0f\u5f97\u4e0d\u80fd\u7528\uff0c\u518d\u8bf4\u4e00\u822c\u4fe1\u53f7 \u5728\u8f93\u51fa\u9ad8\u7535\u5e73\u548c\u8f93\u51fa\u4f4e\u7535\u5e73\u65f6\u7684\u8f93\u51fa\u963b\u6297\u5e76\u4e0d\u76f8\u540c\uff0c\u4e5f\u6ca1\u529e\u6cd5\u505a\u5230\u5b8c\u5168\u5339\u914d\u3002\u6240\u4ee5\u5bf9TTL\u3001LVDS\u3001422\u7b49\u4fe1\u53f7\u7684\u5339\u914d\u53ea\u8981\u505a\u5230\u8fc7\u51b2\u53ef\u4ee5\u63a5\u53d7\u5373\u53ef\u3002
\n\u73b0\u8c61\u516b\uff1a\u964d\u4f4e\u529f\u8017\u90fd\u662f\u786c\u4ef6\u4eba\u5458\u7684\u4e8b\uff0c\u4e0e\u8f6f\u4ef6\u6ca1\u5173\u7cfb<\/strong>
\n\u70b9 \u8bc4\uff1a\u786c\u4ef6\u53ea\u662f\u642d\u4e2a\u821e\u53f0\uff0c\u5531\u620f\u7684\u5374\u662f\u8f6f\u4ef6\uff0c\u603b\u7ebf\u4e0a\u51e0\u4e4e\u6bcf\u4e00\u4e2a\u82af\u7247\u7684\u8bbf\u95ee\u3001\u6bcf\u4e00\u4e2a\u4fe1\u53f7\u7684\u7ffb\u8f6c\u5dee\u4e0d\u591a\u90fd\u7531\u8f6f\u4ef6\u63a7\u5236\u7684\uff0c\u5982\u679c\u8f6f\u4ef6\u80fd\u51cf\u5c11\u5916\u5b58\u7684\u8bbf\u95ee\u6b21\u6570\uff08\u591a\u4f7f\u7528\u5bc4\u5b58 \u5668\u53d8\u91cf\u3001\u591a\u4f7f\u7528\u5185\u90e8CACHE\u7b49\uff09\u3001\u53ca\u65f6\u54cd\u5e94\u4e2d\u65ad\uff08\u4e2d\u65ad\u5f80\u5f80\u662f\u4f4e\u7535\u5e73\u6709\u6548\u5e76\u5e26\u6709\u4e0a\u62c9\u7535\u963b\uff09\u53ca\u5176\u5b83\u4e89\u5bf9\u5177\u4f53\u5355\u677f\u7684\u7279\u5b9a\u63aa\u65bd\u90fd\u5c06\u5bf9\u964d\u4f4e\u529f\u8017\u4f5c\u51fa\u5f88\u5927\u7684\u732e\u3002
\n\u4e09\uff1a\u7cfb\u7edf\u6548\u7387<\/strong>
\n\u73b0\u8c61\u4e00\uff1a\u8fd9\u4e3b\u9891<\/strong>100M<\/strong>\u7684<\/strong>CPU<\/strong>\u53ea\u80fd\u5904\u7406<\/strong>70%<\/strong>\uff0c\u6362<\/strong>200M<\/strong>\u4e3b\u9891\u7684\u5c31\u6ca1\u4e8b\u4e86<\/strong>
\n\u70b9\u8bc4\uff1a\u7cfb\u7edf\u7684\u5904\u7406\u80fd\u529b\u7275\u6d89\u5230\u591a\u79cd\u591a\u6837\u7684\u56e0\u7d20\uff0c\u5728\u901a\u4fe1\u4e1a\u52a1\u4e2d\u5176\u74f6\u9888\u4e00\u822c\u90fd\u5728\u5b58\u50a8\u5668\u4e0a\uff0cCPU\u518d\u5feb\uff0c\u5916\u90e8\u8bbf\u95ee\u5feb\u4e0d\u8d77\u6765\u4e5f\u662f\u5f92\u52b3\u3002
\n\u73b0\u8c61\u4e8c\uff1a<\/strong>CPU<\/strong>\u7528\u5927\u4e00\u70b9\u7684<\/strong>CACHE<\/strong>\uff0c\u5c31\u5e94\u8be5\u5feb\u4e86<\/strong>
\n\u70b9 \u8bc4\uff1aCACHE\u7684\u589e\u5927\uff0c\u5e76\u4e0d\u4e00\u5b9a\u5c31\u5bfc\u81f4\u7cfb\u7edf\u6027\u80fd\u7684\u63d0\u9ad8\uff0c\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u5173\u95edCACHE\u53cd\u800c\u6bd4\u4f7f\u7528CACHE\u8fd8\u5feb\u3002\u539f\u56e0\u662f\u642c\u5230CACHE\u4e2d\u7684\u6570\u636e\u5fc5\u987b\u5f97\u5230\u591a\u6b21 \u91cd\u590d\u4f7f\u7528\u624d\u4f1a\u63d0\u9ad8\u7cfb\u7edf\u6548\u7387\u3002\u6240\u4ee5\u5728\u901a\u4fe1\u7cfb\u7edf\u4e2d\u4e00\u822c\u53ea\u6253\u5f00\u6307\u4ee4CACHE\uff0c\u6570\u636eCACHE\u5373\u4f7f\u6253\u5f00\u4e5f\u53ea\u5c40\u9650\u5728\u90e8\u5206\u5b58\u50a8\u7a7a\u95f4\uff0c\u5982\u5806\u6808\u90e8\u5206\u3002\u540c\u65f6\u4e5f\u8981\u6c42\u7a0b\u5e8f\u8bbe\u8ba1 \u8981\u517c\u987eCACHE\u7684\u5bb9\u91cf\u53ca\u5757\u5927\u5c0f\uff0c\u8fd9\u6d89\u53ca\u5230\u5173\u952e\u4ee3\u7801\u5faa\u73af\u4f53\u7684\u957f\u5ea6\u53ca\u8df3\u8f6c\u8303\u56f4\uff0c\u5982\u679c\u4e00\u4e2a\u5faa\u73af\u521a\u597d\u6bd4CACHE\u5927\u90a3\u4e48\u4e00\u70b9\u70b9\uff0c\u53c8\u5728\u53cd\u590d\u5faa\u73af\u7684\u8bdd\uff0c\u90a3\u5c31\u60e8\u4e86\u3002
\n\u73b0\u8c61\u4e09\uff1a\u8fd9\u4e48\u591a\u4efb\u52a1\u5230\u5e95\u662f\u7528\u4e2d\u65ad\u8fd8\u662f\u7528\u67e5\u8be2\u5462\uff1f\u8fd8\u662f\u4e2d\u65ad\u5feb\u4e9b\u5427<\/strong>
\n\u70b9 \u8bc4\uff1a\u4e2d\u65ad\u7684\u5b9e\u65f6\u6027\u5f3a\uff0c\u4f46\u4e0d\u4e00\u5b9a\u5feb\u3002\u5982\u679c\u4e2d\u65ad\u4efb\u52a1\u7279\u522b\u591a\u7684\u8bdd\uff0c\u8fd9\u4e2a\u6ca1\u9000\u51fa\u6765\uff0c\u540e\u9762\u53c8\u63a5\u8e35\u800c\u81f3\uff0c\u4e00\u4f1a\u513f\u7cfb\u7edf\u5c31\u5c06\u5d29\u6e83\u4e86\u3002\u5982\u679c\u4efb\u52a1\u6570\u91cf\u591a\u4f46\u5f88\u9891\u7e41\u7684\u8bdd\uff0cCPU\u7684 \u5f88\u5927\u7cbe\u529b\u90fd\u7528\u5728\u8fdb\u51fa\u4e2d\u65ad\u7684\u5f00\u9500\u4e0a\uff0c\u7cfb\u7edf\u6548\u7387\u6781\u4e3a\u4f4e\u4e0b\uff0c\u5982\u679c\u6539\u7528\u67e5\u8be2\u65b9\u5f0f\u53cd\u800c\u53ef\u6781\u5927\u63d0\u9ad8\u6548\u7387\uff0c\u4f46\u67e5\u8be2\u6709\u65f6\u4e0d\u80fd\u6ee1\u8db3\u5b9e\u65f6\u6027\u8981\u6c42\uff0c\u6240\u4ee5\u6700\u597d\u7684\u529e\u6cd5\u662f\u5728\u4e2d\u65ad\u4e2d\u67e5 \u8be2\uff0c\u5373\u8fdb\u4e00\u6b21\u4e2d\u65ad\u5c31\u628a\u79ef\u7d2f\u7684\u6240\u6709\u4efb\u52a1\u90fd\u5904\u7406\u5b8c\u518d\u9000\u51fa\u3002
\n\u73b0\u8c61\u56db\uff1a\u5b58\u50a8\u5668\u63a5\u53e3\u7684\u65f6\u5e8f\u90fd\u662f\u5382\u5bb6\u9ed8\u8ba4\u7684\u914d\u7f6e\uff0c\u4e0d\u7528\u4fee\u6539\u7684<\/strong>
\n\u70b9\u8bc4\uff1aBSP\u5bf9\u5b58\u50a8 \u5668\u63a5\u53e3\u8bbe\u7f6e\u7684\u9ed8\u8ba4\u503c\u90fd\u662f\u6309\u6700\u4fdd\u5b88\u7684\u53c2\u6570\u8bbe\u7f6e\u7684\uff0c\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u5e94\u7ed3\u5408\u603b\u7ebf\u5de5\u4f5c\u9891\u7387\u548c\u7b49\u5f85\u5468\u671f\u7b49\u53c2\u6570\u8fdb\u884c\u5408\u7406\u8c03\u914d\u3002\u6709\u65f6\u628a\u9891\u7387\u964d\u4f4e\u53cd\u800c\u53ef\u63d0\u9ad8\u6548\u7387\uff0c\u5982RAM\u7684 \u5b58\u53d6\u5468\u671f\u662f70ns\uff0c\u603b\u7ebf\u9891\u7387\u4e3a40M\u65f6\uff0c\u8bbe3\u4e2a\u5468\u671f\u7684\u5b58\u53d6\u65f6\u95f4\uff0c\u537375ns\u5373\u53ef\uff1b\u82e5\u603b\u7ebf\u9891\u7387\u4e3a50M\u65f6\uff0c\u5fc5\u987b\u8bbe\u4e3a4\u4e2a\u5468\u671f\uff0c\u5b9e\u9645\u5b58\u53d6\u65f6\u95f4\u5374\u653e\u6162\u5230\u4e86 80ns\u3002
\n\u73b0\u8c61\u4e94\uff1a\u4e00\u4e2a<\/strong>CPU<\/strong>\u5904\u7406\u4e0d\u8fc7\u6765\uff0c\u5c31\u7528\u4e24\u4e2a\u5206\u5e03\u5904\u7406\uff0c\u5904\u7406\u80fd\u529b\u53ef\u63d0\u9ad8\u4e00\u500d<\/strong>
\n\u70b9\u8bc4\uff1a\u5bf9\u4e8e\u642c\u7816\u5934\u6765\u8bf4\uff0c\u4e24\u4e2a\u4eba\u5e94\u8be5\u6bd4\u4e00\u4e2a\u4eba\u7684\u6548\u7387\u9ad8\u4e00\u500d\uff1b\u5bf9\u4e8e\u4f5c\u753b\u6765\u8bf4\uff0c\u591a\u4e00\u4e2a\u4eba\u53ea\u80fd\u5e2e\u5012\u5fd9\u3002\u4f7f\u7528\u51e0\u4e2aCPU\u9700\u5bf9\u4e1a\u52a1\u6709\u8f83\u591a\u7684\u4e86\u89e3\u540e\u624d\u80fd\u786e\u5b9a\uff0c\u5c3d\u91cf\u51cf\u5c11\u4e24\u4e2aCPU\u95f4\u534f\u8c03\u7684\u4ee3\u4ef7\uff0c\u4f7f1+1\u5c3d\u53ef\u80fd\u63a5\u8fd12\uff0c\u5343\u4e07\u522b\u5c0f\u4e8e1\u3002
\n\u73b0\u8c61\u516d\uff1a\u8fd9\u4e2a<\/strong>CPU<\/strong>\u5e26\u6709<\/strong>DMA<\/strong>\u6a21\u5757\uff0c\u7528\u5b83\u6765\u642c\u6570\u636e\u80af\u5b9a\u5feb<\/strong>
\n\u70b9 \u8bc4\uff1a\u771f\u6b63\u7684DMA\u662f\u7531\u786c\u4ef6\u62a2\u5360\u603b\u7ebf\u540e\u540c\u65f6\u542f\u52a8\u4e24\u7aef\u8bbe\u5907\uff0c\u5728\u4e00\u4e2a\u5468\u671f\u5185\u8fd9\u8fb9\u8bfb\uff0c\u90a3\u8fb9\u4e9b\u3002\u4f46\u5f88\u591a\u5d4c\u5165CPU\u5185\u7684DMA\u53ea\u662f\u6a21\u62df\u800c\u5df2\uff0c\u542f\u52a8\u6bcf\u4e00\u6b21DMA\u4e4b\u524d\u8981\u505a \u4e0d\u5c11\u51c6\u5907\u5de5\u4f5c\uff08\u8bbe\u8d77\u59cb\u5730\u5740\u548c\u957f\u5ea6\u7b49\uff09\uff0c\u5728\u4f20\u8f93\u65f6\u5f80\u5f80\u662f\u5148\u8bfb\u5230\u82af\u7247\u5185\u6682\u5b58\uff0c\u7136\u540e\u518d\u5199\u51fa\u53bb\uff0c\u5373\u642c\u4e00\u6b21\u6570\u636e\u9700\u4e24\u4e2a\u65f6\u949f\u5468\u671f\uff0c\u6bd4\u8f6f\u4ef6\u6765\u642c\u8981\u5feb\u4e00\u4e9b\uff08\u4e0d\u9700\u8981\u53d6\u6307\u4ee4\uff0c \u6ca1\u6709\u5faa\u73af\u8df3\u8f6c\u7b49\u989d\u5916\u5de5\u4f5c\uff09\uff0c\u4f46\u5982\u679c\u4e00\u6b21\u53ea\u642c\u51e0\u4e2a\u5b57\u8282\uff0c\u8fd8\u8981\u505a\u4e00\u5806\u51c6\u5907\u5de5\u4f5c\uff0c\u4e00\u822c\u8fd8\u6d89\u53ca\u51fd\u6570\u8c03\u7528\uff0c\u6548\u7387\u5e76\u4e0d\u9ad8\u3002\u6240\u4ee5\u8fd9\u79cdDMA\u53ea\u5bf9\u5927\u6570\u636e\u5757\u624d\u9002\u7528\u3002
\n\u56db\uff1a\u4fe1\u53f7\u5b8c\u6574\u6027<\/strong>
\n\u73b0\u8c61\u4e00\uff1a\u8fd9\u4e9b\u4fe1\u53f7\u90fd\u7ecf\u8fc7\u4eff\u771f\u4e86\uff0c\u7edd\u5bf9\u6ca1\u95ee\u9898<\/strong>
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