AR# 38871

Virtex-5 - IDELAY - Why is the RST grounded in the .ncd when fixed tap-delay mode is used?

描述

Why is the RST grounded in the .ncd when fixed tap-delay mode is used?

解决方案

The IDELAY's RST is used to reset the delay chain to a pre-programmed value. When fixed mode is used the delay value is set to a number specified by the IOBDELAY_VALUE and cannot be reset.
AR# 38871
日期 12/15/2012
状态 Active
Type 综合文章
器件 More Less