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# 147

XC2000/XC3000: Can the crystal oscillator be used before configuration?


The crystal oscillator circuit is not accessible before the start of
configuration. It may be possible to use it before the end of configuration,
as it is programmed by one of the very first bits in the configuration
bitstream. This method is not recommended, as it is not tested or spec'd
and could change.

AR# 147
Date Created 08/31/2007
Last Updated 10/01/2008
Status Archive
Type General Article