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AR# 67155

How to handle TXPIPPMEN in GTY and GTH UltraScale HSSIO

描述

In both (UG576) and (UG578), the port TXPIPPMEN is declared to be Asynchronous.

How should I handle this signal?

解决方案

This signal is re-synchronized internally, however it is still recommended that TXPIPPMEN be treated as a synchronous signal on the TXUSRCLK domain.

TXPIPPMEN should be pulsed for two TXUSRCLK cycles in order to move TXPIPPMSTEPSIZE[3:0] of the PI controller in the direction of TXPIPPMSTEPSIZE[4].

AR# 67155
日期 05/12/2016
状态 Active
Type 综合文章
器件
  • Kintex UltraScale
  • Kintex UltraScale+
  • Virtex UltraScale
  • Virtex UltraScale+
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