64B/66B加扰后的数据几乎是白噪声，高低频成分都有，高频衰减会让上升沿变缓，码间干扰加大。 预加重（Pre-emphasis）是在发送端提前把高频分量抬起来，分成Pre-cursor和Post-cursor两个方向的抽头。 TXPRECURSOR和TXPOSTCURSOR在GT原语上也有对应端口。
本文基于Vivado 2023.1，详解Aurora 64B/66B IP核的实战配置流程，重点剖析GT选型、时钟架构（init_clk/user_clk/gt_refclk）、线速率与 ...
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