AR# 8244: 2.1isp3 Virtex Bitgen: Virtex bit file from bitgen with default options causes improper behavior on CLKDLL
AR# 8244
2.1isp3 Virtex Bitgen: Virtex bit file from bitgen with default options causes improper behavior on CLKDLL
Description
Keywords: Virtex, CLKDLL, bitgen, sp3, bit, sp2
Urgency: Hot
General Description:
NOTE: This solution assumes that you have already installed the SP3 update.
A Virtex bit file produced from 2.1iSP3 bitgen is different than that produced from sp2. The DLL feedback will be stuck at high or low, so the DLL will not lock. This would only affect Virtex devices using SP3. VirtexE devices will still work fine.