How can I choose a GbE PHY for the TMS320C6455 ?

Hi All:

I am glad to come here to find so many warm-hearted people.

Now I am developing the gigabit ethernet function of TMS320C6455 .In the C6455 EVM(mezz board),there is a BCM5464 gigabit ethernet transciever used.

Because the chip's datasheet is so hard to find,I hope I can take it with other PHYs,such as DP83865(National Semiconductor),88e1111(Marvel),ET1011C(LSI).

Though the PHYs above all are gigabit PHY,I found the MDIO registers of them are not all the same with each other. Some tips say that the PHYs define some basic registers

according to 802.3,but other registers are defined by the producers themself, so there may be some differences.

And my QUESTION is:

How can the NDK surpport the PHYs other than BCM5464?

Must I change the hardware abstract level drivers of the EVM if I use other PHYs?

Thank you very much!

                                                                                        weizhiheng  2010 06 14