Re: [Discuss-gnuradio] 100/1000 PHYs

[zarquon]

On Tue, Nov 23, 2004 at 05:43:19PM -0600, David Carr wrote:
> I've just been reading through the 802.3 MAC spec.  I looks like the MAC 
> functionality is not too bad.  One thing I'm not sure how to handle is 
> the PHY itself.  I don't think that I have or can afford the capabilty 
> to mount a BGA which leaves the PQFP packages.  The only one I've found 
> that actually lets you download technical information is the National 
> Semi  DP83865.  Unfourtunately, they reccomend a 6 layer PCB.  It looks 
> rather difficult to make it work with 4 layers.
> 
> Questions:
> 
> What other non-BGA GigE PHYs are out there with free (non-NDA) 
> documentation?
> Any 100Mb PHYs out there that I can experiement with in the meantime?
> What 100Mb or 1000Mb cards have access to the MII or GMII interface, so 
> that I can tap it?

Hmm.. would it be easier to toss on a PCI bridge and use a commercial card
on a riser? Or is there enough on the FPGA to do a PCI interface on that? Card 
initialization will be a pain, though.

Just to sum up:
National DP83865: PQFP 128 pins
Intel PHYs: BGA
Broadcom: No Docs
Marvell: No Docs
RocketPHY (Overkill, 10 Gbit): BGA
VITESSE: No Docs, appear BGA

I'm sure I missed a few..

R C