Pin for sdram external connection interface in NEEK

Hello,

I'm trying to add an DDR controller to my design in the Cyclone 3 Nios2 Embedded Evaluation Kit. I have checked some examples and all examples export the interfaces "external connection" and "memory" from the controller. In the NEEK documentation I found the PINs to assign to the "memory" interface with the pin planner but I cannot find where I must connect the "external connection".

These are the pins that I don't know where I must to assign them:

external_connection_local_init_done

external_connection_local_refresh_ack

external_connection_reset_phy_clk_n