I'm running into the following error message when I run Xpower on a Spartan 3A design:
WARNING:Power:738 - Vccint not in recommended range [0.940..1.060]V.
However from the datasheet DS529.pdf I see recommended operating voltage (min) (typ) (max):
VCCINT Internal supply voltage 1.140 1.200 1.260 V
So what is the real core supply voltage for Spartan 3A?
Anyone? Xilinx? :)