TSE in 100MBit

Hi

I'm using the altera TSE. But somehow I have problems with the gigabit configuration... I'm pretty shure there are some wrong timing constrains.

How do I set the TSE in 100MBit mode? I'm using the SimpleSockedServer(RGMII) on my NIOS.

I found the function "alt_32 alt_tse_mac_set_common_speed(np_tse_mac *pmac, alt_32 common_speed)" but I don't know what to write in the "np_tse_mac"

Any suggestions? Or other ways to define my speed?