Need help to ensamble W5500

Hi, i am currently trying to add ethernet connection to internet to my project. I decided to use the W5500. I found good schematic documentation, but i dont know the value of R5 for the 25MHz Xtal:

Also I read that it was simple to program. I want it to stay connected always. If anyone can help me with where to search for an example to program it I would appreciate it a lot.

Thanks a lot for any help!

R5(0 ohm) is used when GND of Analog and Digital connected.
It is deal with one point GND.
And it is also a fuse. This is a fuse with an over-current shutdown function, although it appears to be a 0 ohm resistor.