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AR# 18373

Virtex-II Pro - Figure 4-5 in the User Guide (v2.4) is missing pull-ups on the TDO lines.


In the User Guide for Virtex-II Pro (v2.4), page 287 says that TDO has no internal pullup and that a recommended value of 200 Ohms external pullup should be used on TDO. 


However, this pull-up is not shown in Figure 4-5 on pg 290. So, should the pull-ups be used?


Yes. There pull-ups should be shown on the TDO lines in figure 4-5 of the Virtex-II Pro User Guide.

AR# 18373
Date Created 09/03/2007
Last Updated 05/08/2014
Status Archive
Type General Article