How to process unused terminals of DP83848i

Hello

I want to know how to process unused terminals of DP83848i.
Would you check following mentions ; 

Terminal no.         
1；TX_CLK(output)       →  open
5；TXD_2(input)         →  open?
25；25MHz_OUT(output)  → open
33；X2(output) → open
38；RX_CLK(output) → open
42；COL/PHYAD0(input:PU) → open?
45；RXD_2/PHYAD3(input:PD) → open?
46；RXD_3/PHYAD4(input:PD) → open?

Note : I  will use in RMII mode(50MHz clock)

Best regards
Higa