I received an answer from the Vortex producer DMP. The are currently selling Vortex86DX CPUs which are not equiped with IRQs to the GPIOs.
Even if this feature has been advertised for the DX SOC processor since long time, it won't be available for cpus delivered before the fourth quarter of this year.
They are advertising features which aren't implemented currently. "Hope" seems to be still a good sales argument.
Last edited by maus; 06-22-2009 at 11:04 AM.