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datasheet上看到AM335X接DDR3时，因为ODT的功能，数据信号部分不接匹配电阻而其它控制信号是需要接匹配电阻的，我看了官方的电路图发现控制信号也没接匹配电阻，这如何理解匹配呢？另外AM335X在DDR3存储器部分的输出电阻各是多少？
您可以参考datasheet中5.6.2.3 DDR3 and DDR3L Routing Guidelines的具体说明。
