How can i use the tse ip core with qsys?

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I'm much obliged to you for hleping me.I'm confused about the component library provide by Qsys,i don't know when should i use the JTAG_UART,System ID Peripheral and On-Chip Memory.Whether can it work properly when i just use the tse ip core and niosii processer without anything else?Could you give me some tips about how to coustom my own ehernet qsys system?I really appreciate all of your help!

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Sorry to be vague, but basically, you need to do more reading and understanding of what you are trying to accomplish.

If you're using a NIOS, you need memory. And usually if you're using a NIOS, you like to see it's console printf's on a UART.

If you're using ethernet, the packet data needs to be read/written somewhere, and usually that is also memory.

How much you can or cannot remove from the reference examples is going to depend on what IP blocks you are going to replace it with or what functionality you are going to remove.

Good luck!