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AR# 20129

Virtex-4 - LX25's BSCAN_VIRTEX4 RESET and DRCK signals might not function as expected on the ES parts

Description

General Description:

LX25's BSCAN_VIRTEX4 RESET and DRCK signals might not function as expected on the ES parts.

Solution

To work around this issue, simply invert the RESET output and avoid using DRCK signals when the JTAG_CHAIN attribute is set to other than "1". However, since this issue will be fixed in a future device revision, implementing this work-around might result in an incompatibility with this future revision.

AR# 20129
Date Created 09/03/2007
Last Updated 12/15/2012
Status Active
Type General Article