if I configure the base addr as ffff0000,I can drive addr bus as ffffXXXX to hit the pci device,but in dos mode,there are only 20 addr lines,then what addr can be used in a test assemble program to hit the device? thx a lot กกกก DARRENTJEN@YEAH.NET 2002-08-14 -- To unsubscribe from pci mailing list please visit http://www.opencores.org/mailinglists.shtml