But in DDR4 there is no voltage divider circuit at the receiver. It instead has an internal voltage reference which it uses to decide if the signal on data lines (DQ) is 0 or 1. This voltage reference is called VrefDQ. The VrefDQ can be set using mode registers MR6 and it needs to be set correctly by the memory controller during the VrefDQ calibration phase.
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前几年，丢掉文章，去干短视频的一些人，今年大腿可能要拍肿。
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