[ixp1200] Using all interfaces (Gigabit and Mbp) of 1200EB

Has anyone programmed the ixp1200 so as to use mixed interfaces? Both Gigabit and Mbps ? What happens with the Ready Bus Sequencer? Is it possible to use all of the Gigabit and the Megabit interfaces (2 + 8) ?? It seems to me that it is either in Slow Port mode or Fast Port mode, but not mixed... Thank you in advance! Yannis Haritakis