Cyclone V SDI ii IP CORE,how to use altera-modelsim to simulate?

Thanks for bfkstimchan and nic_@ replies.

Q1: The module name for both TX and RX instances are different, so I think this is a bug or I didn't use it correctly.

My design only need RX,so I use TX to simulate it.

Q2: I use TX SDI ii ip,it outputs tx is okay,but using sdi ip it outputs wrong.

Q3: I know it's user created logic, I find the data register[31:0] phy address is 7'h3C. But I don't know every bit define for data register[31:0].