{"id":7501,"date":"2026-11-15T14:23:43","date_gmt":"2026-11-15T06:23:43","guid":{"rendered":"https:\/\/nullthought.net\/?p=7501"},"modified":"2026-11-15T14:23:45","modified_gmt":"2026-11-15T06:23:45","slug":"ddr-%e8%b5%b0%e7%ba%bf%e6%98%8e%e6%98%8e%e7%ad%89%e9%95%bf%ef%bc%8c%e4%b8%ba%e4%bb%80%e4%b9%88%e8%bf%98%e4%bc%9a%e5%b7%ae-15-%e7%9a%ae%e7%a7%92%ef%bc%88ps%ef%bc%89%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/nullthought.net\/?p=7501","title":{"rendered":"DDR \u8d70\u7ebf\u660e\u660e\u7b49\u957f\uff0c\u4e3a\u4ec0\u4e48\u8fd8\u4f1a\u5dee 15 \u76ae\u79d2\uff08ps\uff09\uff1f"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u4e00\u6839 DQ \u548c\u5b83\u5bf9\u5e94\u7684 DQS \u90fd\u8d70\u4e86 37 mm\u3002PCB \u5de5\u5177\u663e\u793a\u4e24\u8005\u7b49\u957f\uff0c\u7b97\u51fa\u6765\u5374\u662f DQ \u65e9\u5230 15 ps\u3002\u5dee\u5f02\u6765\u81ea\u4e24\u6839\u7ebf\u5728\u5916\u5c42\u548c\u5185\u5c42\u7684\u5206\u5e03\u3002\u5916\u5c42\u5fae\u5e26\u7ebf\u4e0e\u5185\u5c42\u5e26\u72b6\u7ebf\u7684\u4f20\u64ad\u901f\u5ea6\u4e0d\u540c\uff0c\u540c\u6837\u7684 37 mm\uff0c\u53ef\u4ee5\u5bf9\u5e94\u4e0d\u540c\u7684\u5230\u8fbe\u65f6\u95f4\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">15 ps \u6709\u591a\u5927\uff1f\u4ee5 AMD\u300aZynq-7000 SoC PCB Design Guide\u300bUG933 \u7b2c 65 \u9875\u4e3a\u4f8b\uff0cDDR3\uff0fDDR3L \u7684 DQ \u5bf9 DQS \u5ef6\u65f6\u5339\u914d\u57fa\u51c6\u662f \u00b110 ps\u3002\u6309\u8fd9\u4e2a\u57fa\u51c6\uff0c\u4e24\u6839\u51e0\u4f55\u7b49\u957f\u7684\u7ebf\u5df2\u7ecf\u8d85\u9650\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/nullthought.net\/wp-content\/uploads\/2026\/11\/DDR\u5e03\u7ebf\u5ef6\u65f6\u4e0e\u65f6\u5e8f\u88d5\u91cf-1024x1024.jpg\" alt=\"\" class=\"wp-image-7502\" srcset=\"https:\/\/nullthought.net\/wp-content\/uploads\/2026\/11\/DDR\u5e03\u7ebf\u5ef6\u65f6\u4e0e\u65f6\u5e8f\u88d5\u91cf-1024x1024.jpg 1024w, https:\/\/nullthought.net\/wp-content\/uploads\/2026\/11\/DDR\u5e03\u7ebf\u5ef6\u65f6\u4e0e\u65f6\u5e8f\u88d5\u91cf-150x150.jpg 150w, https:\/\/nullthought.net\/wp-content\/uploads\/2026\/11\/DDR\u5e03\u7ebf\u5ef6\u65f6\u4e0e\u65f6\u5e8f\u88d5\u91cf-300x300.jpg 300w, https:\/\/nullthought.net\/wp-content\/uploads\/2026\/11\/DDR\u5e03\u7ebf\u5ef6\u65f6\u4e0e\u65f6\u5e8f\u88d5\u91cf-120x120.jpg 120w, https:\/\/nullthought.net\/wp-content\/uploads\/2026\/11\/DDR\u5e03\u7ebf\u5ef6\u65f6\u4e0e\u65f6\u5e8f\u88d5\u91cf-768x768.jpg 768w, https:\/\/nullthought.net\/wp-content\/uploads\/2026\/11\/DDR\u5e03\u7ebf\u5ef6\u65f6\u4e0e\u65f6\u5e8f\u88d5\u91cf.jpg 1254w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">DDR\u5e03\u7ebf\u5ef6\u65f6\u4e0e\u65f6\u5e8f\u88d5\u91cf<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e00\u3001\u5148\u786e\u5b9a\u6bcf\u6839\u7ebf\u8be5\u548c\u8c01\u6bd4<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">DDR \u63a5\u53e3\u4e0a\uff0c\u6570\u636e\u3001\u547d\u4ee4\u548c\u65f6\u949f\u4f7f\u7528\u4e0d\u540c\u7684\u91c7\u6837\u57fa\u51c6\u3002\u62ff\u5230\u8d70\u7ebf\u62a5\u544a\uff0c\u5148\u786e\u5b9a<strong>\u63a5\u6536\u7aef\u3001\u53c2\u8003\u4fe1\u53f7\u548c\u504f\u659c\u65b9\u5411<\/strong>\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>DQ\uff0fDM \u5bf9 DQS<\/strong>\u3002\u6bcf\u6839\u6570\u636e\u7ebf\u548c\u9002\u7528\u7684\u6570\u636e\u63a9\u7801\u7ebf\uff0c\u90fd\u4e0e\u672c\u5b57\u8282\u901a\u9053\u7684 DQS \u6bd4\u8f83\u3002\u4e00\u4e2a\u901a\u9053\u91cc\u6700\u65e9\u548c\u6700\u665a\u5230\u8fbe\u7684\u6570\u636e\u4f4d\uff0c\u4f1a\u538b\u7f29\u6240\u6709\u6570\u636e\u4f4d\u5171\u540c\u53ef\u7528\u7684\u91c7\u6837\u7a97\u53e3\u3002<\/li>\n\n\n\n<li><strong>\u547d\u4ee4\u3001\u5730\u5740\u3001\u63a7\u5236\u5bf9 CK<\/strong>\u3002\u5728\u6bcf\u9897 DRAM \u7684\u63a5\u6536\u7aef\uff0c\u5c06\u5404\u53d7\u7ea6\u675f\u4fe1\u53f7\u4e0e\u540c\u4e00\u9897\u5668\u4ef6\u63a5\u6536\u5230\u7684 CK \u6bd4\u8f83\u3002<\/li>\n\n\n\n<li><strong>\u5199 DQS \u5bf9 CK<\/strong>\u3002\u5bf9\u6bcf\u4e2a\u5b57\u8282\u901a\u9053\u8ba1\u7b97\u4e24\u8005\u5230\u8fbe\u540c\u4e00\u9897 DRAM \u7684\u65f6\u95f4\u5dee\u3002\u8fd9\u4e2a\u65f6\u95f4\u5dee\u5f71\u54cd\u5199\u5165\u6821\u51c6\u6240\u9700\u7684\u8c03\u6574\u91cf\u3002<\/li>\n\n\n\n<li><strong>\u5dee\u5206\u5bf9\u7684 P \u5bf9 N<\/strong>\u3002CK \u548c DQS \u5404\u81ea\u7684\u4e24\u652f\u90fd\u8981\u68c0\u67e5\u3002\u5373\u4f7f\u4e24\u652f\u5ef6\u65f6\u7684\u5e73\u5747\u503c\u5408\u9002\uff0c\u5bf9\u5185\u504f\u659c\u4ecd\u53ef\u80fd\u6539\u53d8\u63a5\u6536\u7aef\u7684\u5dee\u5206\u4ea4\u8d8a\u65f6\u523b\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728 fly-by \u62d3\u6251\u4e2d\uff0cCK \u548c\u547d\u4ee4\u3001\u5730\u5740\u4e3b\u5e72\u4f9d\u6b21\u7ecf\u8fc7\u591a\u4e2a\u8d1f\u8f7d\u3002\u5e94\u5206\u522b\u63d0\u53d6\u5230\u6bcf\u9897 DRAM \u7684\u8def\u5f84\u3002\u4e3b\u5e72\u672b\u7aef\u5230\u7ec8\u7aef\u7535\u963b\u7684\u5c3e\u6bb5\u5c5e\u4e8e\u4eff\u771f\u7f51\u7edc\uff0c\u4f1a\u5f71\u54cd\u53cd\u5c04\u548c\u63a5\u6536\u6ce2\u5f62\u3002\u70b9\u5230\u70b9\u7ebf\u957f\u5219\u91cf\u5230\u6307\u5b9a\u7684 DRAM \u710a\u7403\u4e3a\u6b62\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e8c\u3001\u628a\u7ebf\u957f\u6362\u6210\u76ae\u79d2<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">PCB \u8def\u5f84\u5ef6\u65f6\u53ef\u4ee5\u8fd9\u6837\u4f30\u7b97\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>PCB \u8def\u5f84\u5ef6\u65f6 = \u03a3\uff08\u5404\u5c42\u8d70\u7ebf\u957f\u5ea6 \u00d7 \u8be5\u5c42\u5355\u4f4d\u957f\u5ea6\u5ef6\u65f6\uff09\uff0b \u03a3\uff08\u8def\u5f84\u7ecf\u8fc7\u7684\u8fc7\u5b54\u5ef6\u65f6\uff09<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5916\u5c42\u3001\u5185\u5c42\u7684\u5355\u4f4d\u957f\u5ea6\u5ef6\u65f6\u5e94\u6839\u636e\u5b9e\u9645\u53e0\u5c42\u8ba1\u7b97\u3002\u521d\u7b97\u65f6\uff0c\u81f3\u5c11\u638c\u63e1\u6bcf\u6bb5\u8d70\u7ebf\u6240\u5728\u5c42\u3001\u5bf9\u5e94\u4ecb\u8d28\u548c\u53c2\u8003\u5e73\u9762\u3002\u6df7\u5c42\u8f83\u591a\u3001\u504f\u659c\u9884\u7b97\u8f83\u7d27\u65f6\uff0c\u53ef\u4ee5\u7528\u573a\u6c42\u89e3\u5668\u63d0\u53d6\u5404\u5c42\u4f20\u64ad\u5ef6\u65f6\uff0c\u5e76\u5efa\u6a21\u8fc7\u5b54\u7684\u5b9e\u9645\u7a7f\u8d8a\u6df1\u5ea6\u3001\u710a\u76d8\u548c\u6b8b\u6869\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5c01\u88c5\u4e5f\u4f1a\u5f15\u5165\u9010\u5f15\u811a\u7684\u4f20\u64ad\u5ef6\u65f6\u3002UG933 \u7b2c 64 \u9875\u660e\u786e\u8981\u6c42\u5728 DDR \u5ef6\u65f6\u5339\u914d\u4e2d\u8ba1\u5165\u5c01\u88c5\u5ef6\u65f6\u3002\u8ba1\u7b97\u524d\u5148\u786e\u5b9a\u7aef\u70b9\u662f\u82af\u7247\u5185\u90e8\u710a\u76d8\u8fd8\u662f\u5916\u90e8\u710a\u7403\uff0c\u518d\u6309\u7ea6\u675f\u9009\u53d6\u5bf9\u5e94\u7684\u5c01\u88c5\u9879\u3002\u4f7f\u7528\u5df2\u5305\u542b\u5c01\u88c5\u6216\u8fc7\u5b54\u7684\u6a21\u578b\u65f6\uff0c\u76f4\u63a5\u91c7\u7528\u76f8\u5e94\u7aef\u70b9\u7684\u6a21\u578b\u7ed3\u679c\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u4fe1\u53f7\u504f\u659c = \u4fe1\u53f7\u8def\u5f84\u5ef6\u65f6 \u2212 \u53c2\u8003\u8def\u5f84\u5ef6\u65f6<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6309\u8fd9\u4e2a\u5b9a\u4e49\uff0c\u6b63\u503c\u8868\u793a\u4fe1\u53f7\u6bd4\u53c2\u8003\u665a\u5230\uff0c\u8d1f\u503c\u8868\u793a\u65e9\u5230\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u7b97\u4e00\u7b14 37 mm \u7684\u8d26<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5047\u8bbe\u5916\u5c42\u4e3a 6.0 ps\/mm\u3001\u5185\u5c42\u4e3a 7.0 ps\/mm\uff0c\u4e24\u6761\u8def\u5f84\u8ba1\u5165\u7684\u8fc7\u5b54\u4e0e\u5c01\u88c5\u5ef6\u65f6\u5404\u5408\u8ba1 20 ps\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th>\u4fe1\u53f7<\/th><th>\u5916\u5c42<\/th><th>\u5185\u5c42<\/th><th>\u8def\u5f84\u603b\u5ef6\u65f6<\/th><\/tr><tr><td>DQS<\/td><td>10 mm<\/td><td>27 mm<\/td><td>269 ps<\/td><\/tr><tr><td>DQ<\/td><td>25 mm<\/td><td>12 mm<\/td><td>254 ps<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>DQ \u76f8\u5bf9 DQS \u7684\u504f\u659c = 254 \u2212 269 = \u221215 ps<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u628a DQ \u7684 10 mm \u5916\u5c42\u8d70\u7ebf\u79fb\u5230\u5185\u5c42\uff0c\u5e76\u5047\u8bbe\u8fc7\u5b54\u5ef6\u65f6\u4fdd\u6301\u76f8\u540c\uff0cDQ \u603b\u957f\u4ecd\u662f 37 mm\uff0c\u8def\u5f84\u5ef6\u65f6\u5374\u589e\u52a0\u5230 264 ps\uff0c\u504f\u659c\u7f29\u5c0f\u4e3a \u22125 ps\u3002\u5b9e\u9645\u6539\u7ebf\u6d89\u53ca\u6362\u5c42\u65f6\uff0c\u5e94\u91cd\u65b0\u63d0\u53d6\u8fc7\u5b54\u5ef6\u65f6\uff0c\u518d\u6838\u7b97\u504f\u659c\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e09\u3001\u600e\u6837\u8bfb AMD \u7684 \u00b110 ps<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">UG933 v1.13.1 \u8868 5-9 \u7ed9\u51fa\u7684\u662f <strong>Zynq-7000 PS DDR \u63a5\u53e3<\/strong>\u7684\u5ef6\u65f6\u5339\u914d\u57fa\u51c6\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th>\u5339\u914d\u9879<\/th><th>LPDDR2<\/th><th>DDR2<\/th><th>DDR3\uff0fDDR3L<\/th><\/tr><tr><td>\u540c\u901a\u9053 DQ\uff0fDM \u5bf9 DQS<\/td><td>\u00b110 ps<\/td><td>\u00b120 ps<\/td><td>\u00b110 ps<\/td><\/tr><tr><td>\u5730\u5740\uff0f\u63a7\u5236\u5bf9 CK<\/td><td>\u00b110 ps<\/td><td>\u00b125 ps<\/td><td>\u00b110 ps<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ee5 DDR3 \u4e3a\u4f8b\uff0c\u4e24\u6839 DQ \u5206\u522b\u6bd4 DQS \u65e9\u5230 9 ps \u548c\u665a\u5230 9 ps\uff0c\u5404\u81ea\u90fd\u6ee1\u8db3 \u00b110 ps\uff0c\u4e24\u6839 DQ \u4e4b\u95f4\u5374\u76f8\u5dee 18 ps\u3002\u8bbe\u7f6e PCB \u7ea6\u675f\u65f6\uff0c\u8981\u6838\u5bf9\u5de5\u5177\u68c0\u67e5\u7684\u662f<strong>\u9010\u6839\u4fe1\u53f7\u76f8\u5bf9 DQS \u7684\u504f\u659c<\/strong>\uff0c\u8fd8\u662f<strong>\u7ec4\u5185\u6700\u65e9\u4e0e\u6700\u665a\u7684\u65f6\u95f4\u5dee<\/strong>\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u964d\u901f\u8fd0\u884c\u6216\u4f7f\u7528\u66f4\u9ad8\u989d\u5b9a\u901f\u7387\u7684\u9897\u7c92\u65f6\uff0cUG933 \u9644\u5f55 A \u63d0\u4f9b\u4e86\u6309\u914d\u7f6e\u653e\u5bbd\u7684\u9650\u503c\u3002\u4f8b\u5982\uff0cSoC \u989d\u5b9a 1333 MT\/s\u3001DDR3 \u9897\u7c92\u989d\u5b9a 1600 MT\/s\u3001\u5b9e\u9645\u8fd0\u884c 1333 MT\/s\uff0c\u8868 A-1 \u7ed9\u51fa\u7684 DQ\uff0fDM \u5bf9 DQS \u9650\u503c\u4e3a \u00b138 ps\u3002\u5236\u5b9a\u5176\u4ed6 DDR \u63a5\u53e3\u7684\u7ea6\u675f\u65f6\uff0c\u5e94\u6309\u5bf9\u5e94\u63a7\u5236\u5668\u3001PHY\u3001\u62d3\u6251\u548c\u901f\u7387\u67e5\u8868\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u56db\u3001\u5199\u5165\u6821\u51c6\u80fd\u8865\u507f\u4ec0\u4e48<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728 DDR3\uff0fDDR3L \u7684 fly-by \u5e03\u7ebf\u4e2d\uff0cCK \u53ef\u80fd\u6bd4\u5199 DQS \u66f4\u665a\u5230\u8fbe DRAM\u3002Zynq-7000 PS \u7684\u5199\u5165\u6821\u51c6\u4f1a\u9010\u5b57\u8282\u901a\u9053\u5ef6\u8fdf\u5199 DQS\uff0c\u4f7f\u5176\u4e0e DRAM \u63a5\u6536\u7aef\u7684 CK \u5bf9\u9f50\u3002UG933 \u56e0\u6b64\u8981\u6c42 CK \u8d70\u7ebf\u957f\u5ea6\u81f3\u5c11\u4e0e\u5bf9\u5e94 DQS \u76f8\u5f53\u3002\u5b9e\u9645\u8bc4\u5ba1\u8fd8\u5e94\u7ed3\u5408\u5c42\u522b\u3001\u5c01\u88c5\u548c\u63a5\u6536\u7aef\u6765\u6838\u7b97\u65f6\u95f4\u5dee\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ee5 PS7 \u7684 <code>DQS-to-CLK<\/code> \u5b57\u6bb5\u4e3a\u4f8b\uff0c\u516c\u5f00\u53c2\u8003\u8bbe\u8ba1\u91c7\u7528\u4ee5\u4e0b\u7b26\u53f7\u7ea6\u5b9a\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>DQS-to-CLK = \u5230\u540c\u4e00\u9897 DRAM \u7684 CK \u8def\u5f84\u5ef6\u65f6 \u2212 \u5bf9\u5e94\u901a\u9053\u7684 DQS \u8def\u5f84\u5ef6\u65f6<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5047\u8bbe CK \u4e3a 288 ps\u3001DQS \u4e3a 269 ps\uff0c\u5dee\u503c\u4e3a +19 ps\uff0c\u6362\u7b97\u540e\u662f <strong>+0.019 ns<\/strong>\u3002\u5b83\u63cf\u8ff0\u8bad\u7ec3\u524d\u7684\u4e92\u8fde\u504f\u659c\u3002\u53e6\u4e00\u4e2a\u5b57\u6bb5 <code>Board Delay<\/code> \u8868\u793a\u7528\u4e8e\u8bad\u7ec3\u7684\u5355\u7a0b\u5ef6\u65f6\u4f30\u8ba1\u3002\u516c\u5f00\u53c2\u8003\u8bbe\u8ba1\u4ee5\u901a\u9053\u5185\u6570\u636e\u8def\u5f84\u7684\u4ee3\u8868\u503c\u548c\u5bf9\u5e94 CK \u8def\u5f84\u5ef6\u65f6\u53d6\u5e73\u5747\uff0c\u5b9e\u9645\u586b\u503c\u65f6\u5e94\u6838\u5bf9\u5de5\u5177\u7248\u672c\u3001\u5355\u4f4d\u548c\u5c01\u88c5\u9879\u7684\u8f93\u5165\u4f4d\u7f6e\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5199\u5165\u6821\u51c6\u5b8c\u6210\u540e\uff0c\u8fd8\u8981\u68c0\u67e5 DQS \u8fb9\u6cbf\u662f\u5426\u843d\u5728 DQ \u7684\u6709\u6548\u7a97\u53e3\u5185\u3002Zynq-7000 PS \u652f\u6301\u914d\u7f6e\u5199\u6570\u636e\u76f8\u5bf9 DQS \u7684\u76f8\u4f4d\u3002\u80fd\u5426\u7528\u540c\u4e00\u4e2a\u91c7\u6837\u8fb9\u6cbf\u53ef\u9760\u6355\u83b7\u901a\u9053\u5185\u5404\u4f4d\uff0c\u4ecd\u53d6\u51b3\u4e8e\u9010\u4f4d\u504f\u659c\u548c\u63a5\u6536\u6ce2\u5f62\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e94\u3001\u600e\u6837\u9a8c\u6536\u5e03\u7ebf\u5ef6\u65f6<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u5148\u770b\u7ea6\u675f\u62a5\u544a\u3002<\/strong> \u5bf9\u6bcf\u9897 DRAM\u3001\u6bcf\u4e2a\u5b57\u8282\u901a\u9053\u5217\u51fa\u8def\u5f84\u5ef6\u65f6\u3001\u53c2\u8003\u4fe1\u53f7\u53ca\u6709\u7b26\u53f7\u504f\u659c\uff0c\u6838\u5bf9\u76f8\u5e94\u9650\u503c\u3002\u5dee\u5206\u5bf9\u540c\u65f6\u8bb0\u5f55 P\u3001N \u4e24\u652f\u7684\u5ef6\u65f6\u3002\u8fd9\u6837\u53ef\u4ee5\u76f4\u63a5\u5b9a\u4f4d\u54ea\u4e00\u6839\u7ebf\u3001\u5728\u54ea\u4e2a\u63a5\u6536\u7aef\u3001\u65e9\u5230\u6216\u665a\u5230\u591a\u5c11\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u518d\u770b\u63a5\u6536\u6ce2\u5f62\u3002<\/strong> \u7528\u5b9e\u9645\u53e0\u5c42\u548c\u4e92\u8fde\u6a21\u578b\uff0c\u7ed3\u5408\u9a71\u52a8\u5f3a\u5ea6\u3001\u7ec8\u7aef\u548c\u5668\u4ef6 I\/O \u6a21\u578b\uff0c\u5bf9\u8bfb\u3001\u5199\u548c\u547d\u4ee4\u94fe\u8def\u505a\u4eff\u771f\u3002\u4f9d\u636e\u9002\u7528\u7684\u63a5\u6536\u9608\u503c\u548c\u91c7\u6837\u8fb9\u6cbf\uff0c\u68c0\u67e5\u5efa\u7acb\u88d5\u91cf\u548c\u4fdd\u6301\u88d5\u91cf\u3002\u53cd\u5c04\u3001\u4e32\u6270\u548c\u8fb9\u6cbf\u53d8\u7f13\u90fd\u53ef\u80fd\u79fb\u52a8\u9608\u503c\u4ea4\u8d8a\u65f6\u523b\uff0c\u538b\u7f29\u4f59\u91cf\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u6700\u540e\u770b\u5b9e\u677f\u7ed3\u679c\u3002<\/strong> \u5728\u76ee\u6807\u901f\u7387\u4ee5\u53ca\u89c4\u5b9a\u7684\u6e29\u5ea6\u3001\u7535\u538b\u8303\u56f4\u5185\uff0c\u591a\u6b21\u51b7\u542f\u52a8\u5e76\u8bb0\u5f55\u8bad\u7ec3\u7ed3\u679c\uff0c\u4f7f\u7528\u4e0d\u540c\u6570\u636e\u56fe\u6837\u548c\u5730\u5740\u8303\u56f4\u8fdb\u884c\u6301\u7eed\u8bfb\u5199\u3002\u82e5 PHY \u652f\u6301\u88d5\u91cf\u626b\u63cf\uff0c\u53ef\u4ee5\u8fdb\u4e00\u6b65\u5b9a\u4f4d\u7a97\u53e3\u6700\u7a84\u7684\u5b57\u8282\u901a\u9053\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5e03\u7ebf\u8bc4\u5ba1\u6700\u6709\u7528\u7684\u4e00\u884c\u8bb0\u5f55\u662f\uff1a<strong>\u54ea\u9897\u5668\u4ef6\u7684\u54ea\u6839\u7ebf\uff0c\u76f8\u5bf9\u54ea\u4e2a\u91c7\u6837\u57fa\u51c6\uff0c\u65e9\u5230\u6216\u665a\u5230\u591a\u5c11\uff0c\u8fd8\u5269\u591a\u5c11\u5efa\u7acb\u548c\u4fdd\u6301\u88d5\u91cf\u3002<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u53c2\u8003\u8d44\u6599<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u301401\u3015AMD\u300aZynq-7000 SoC PCB Design Guide\u300b\uff08UG933\uff09\uff0c\u7b2c 64\u201366 \u9875\u53ca\u9644\u5f55 A<br><a href=\"https:\/\/docs.amd.com\/api\/khub\/documents\/emfVNNoDnc5paYCtwGzwPg\/content#page=65\">https:\/\/docs.amd.com\/api\/khub\/documents\/emfVNNoDnc5paYCtwGzwPg\/content#page=65<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u301402\u3015AMD\u300aZynq 7000 SoC Technical Reference Manual\u300b\uff08UG585\uff09\uff0cDRAM Training<br><a href=\"https:\/\/docs.amd.com\/r\/en-US\/ug585-zynq-7000-SoC-TRM\/DRAM-Training\">https:\/\/docs.amd.com\/r\/en-US\/ug585-zynq-7000-SoC-TRM\/DRAM-Training<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u301403\u3015AMD\u300aZynq 7000 SoC Technical Reference Manual\u300b\uff08UG585\uff09\uff0cWrite Data Eye Adjustment<br><a href=\"https:\/\/docs.amd.com\/r\/en-US\/ug585-zynq-7000-SoC-TRM\/Write-Data-Eye-Adjustment\">https:\/\/docs.amd.com\/r\/en-US\/ug585-zynq-7000-SoC-TRM\/Write-Data-Eye-Adjustment<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u301404\u3015AMD\u300aZynq 7000 SoC and 7 Series Devices Memory Interface Solutions User Guide\u300b\uff08UG586\uff09\uff0cTrace Lengths<br><a href=\"https:\/\/docs.amd.com\/r\/en-US\/ug586_7Series_MIS\/Trace-Lengths\">https:\/\/docs.amd.com\/r\/en-US\/ug586_7Series_MIS\/Trace-Lengths<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u301405\u3015\u300aZedBoard Hardware User\u2019s Guide\u300b\uff0c\u8868 2\uff0cDDR3 \u5ef6\u65f6\u8ba1\u7b97<br><a href=\"https:\/\/files.digilent.com\/resources\/programmable-logic\/zedboard\/ZedBoard_HW_UG_v2_2.pdf#page=9\">https:\/\/files.digilent.com\/resources\/programmable-logic\/zedboard\/ZedBoard_HW_UG_v2_2.pdf#page=9<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u301406\u3015Texas Instruments\u300aAM64x\/AM243x DDR Board Design and Layout Guidelines\u300b\uff08SPRACU1A\uff09<br><a href=\"https:\/\/www.ti.com\/lit\/an\/spracu1a\/spracu1a.pdf\">https:\/\/www.ti.com\/lit\/an\/spracu1a\/spracu1a.pdf<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u301407\u3015Texas Instruments\u300aAM62Ax, AM62Px, AM62Dx LPDDR4 Board Design and Layout Guidelines\u300b\uff08SPRAD66B\uff09\uff0c\u7b2c 3 \u8282\uff0c\u677f\u7ea7\u63d0\u53d6\u4e0e\u7cfb\u7edf\u4eff\u771f<br><a href=\"https:\/\/www.ti.com\/lit\/an\/sprad66b\/sprad66b.pdf#page=19\">https:\/\/www.ti.com\/lit\/an\/sprad66b\/sprad66b.pdf#page=19<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e00\u6839 DQ \u548c\u5b83\u5bf9\u5e94\u7684 DQS \u90fd\u8d70\u4e86 37 mm\u3002PCB \u5de5\u5177\u663e\u793a\u4e24\u8005\u7b49\u957f\uff0c\u7b97\u51fa\u6765\u5374\u662f DQ \u65e9\u5230 15 p [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","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":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center 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p&hellip;","_links":{"self":[{"href":"https:\/\/nullthought.net\/index.php?rest_route=\/wp\/v2\/posts\/7501","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nullthought.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nullthought.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nullthought.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/nullthought.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=7501"}],"version-history":[{"count":1,"href":"https:\/\/nullthought.net\/index.php?rest_route=\/wp\/v2\/posts\/7501\/revisions"}],"predecessor-version":[{"id":7503,"href":"https:\/\/nullthought.net\/index.php?rest_route=\/wp\/v2\/posts\/7501\/revisions\/7503"}],"wp:attachment":[{"href":"https:\/\/nullthought.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7501"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nullthought.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7501"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nullthought.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7501"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}