Set Sram of DE2 board

Hi, i would like to know how to set the SRAM on the DE2 board.

For exemple on SOPC builder in the section SRAM, I've added the IDT71V416 SRAM and the Avalon-MM Tristate Bridge ( as it asked to add it). The problem is that i'm not able make pin assignements for that. Where can i find any tutorial about the Avalon-MM Tristate Bridge ? or is there any tutorial for setting this memorry on the DE2 Bord ?

Thx