lan91c111 niosII design neek

Hello,

I am looking for the simplest design for niosII with Ethernet.

I'm trying to get lan91c111 working, but with no success yet.

Any designs which I found on the web are based on triple speed Ethernet controller and niche tcp/ip stack, hardware is very complicated and confusing for me;/

I'd like to use LwIP instead.

Do you have any designs with lan91c111 or maybe somebody could share with me some tips when designing ethernet system?

I'd be very gradefull