UPGRADE YOUR BROWSER

We have detected your current browser version is not the latest one. Xilinx.com uses the latest web technologies to bring you the best online experience possible. Please upgrade to a Xilinx.com supported browser:Chrome, Firefox, Internet Explorer 11, Safari. Thank you!

AR# 15670

Virtex-II Pro RocketIO - The RXCOMMADET output stays High for multiple cycles

描述

Why does the RXCOMMADET output stay High for multiple cycles?

解决方案

The RXCOMMADET and RXREALIGN outputs are originally generated in the RXRECCLK domain and are then re-synchronized to the RXUSRCLK2 domain. To ensure that asserted values are reliably brought out to the fabric regardless of data path width, relative clock phase, and frequencies, the pulse will be stretched and may stay High for multiple cycles.

AR# 15670
日期 05/14/2014
状态 Archive
Type 综合文章
的页面