Simple Socket Server on DE2 w/Davicom DM9000A

okI changed to lan91c111 but now i´m not sure how to connect the pins..First there is address_to_the_lan91c111[15..0] but in the manuel of the board there are only 15 addressline pins for the ethernet. And whats the tri-state-bridge? the in sopc builded block has a tristate-bridge with a 32 biit buffer output ( tristate-bridge[31..0] ) and an output zs_dqm_from_the_sdram[3..0] i don´t know how to connect them wihch pins i should take.