Lpc2000

--- In lpc2000@yahoogroups.com, "Anton Erasmus" <antone@s...> wrote:
> On 31 Jan 2005 at 5:07, Rick Collins wrote:
> 
> [Lots of stuff snipped]
> > 
> > I understand that the W3100A would be simpler to use, but I believe
> > you said it did not support 100 base TX, right? The LAN91C111 is not
> > an inexpensive chip, but it includes the PHY so all you need to add is
> > the transformer and the connector and that end is ready to plug into a
> > network.  Yes, it needs a lot more on the other side, but making a
> > general app board, I want to be able to support 100 base TX.  Even if
> > you don't need the data rate, this can be an advantage is some cases
> > and it should still meet the selling price target of $99, qty 1.  
> > 
> > I will need to project a parts list in the next couple of days, now
> > that I have been promised samples of the AT91SAM7S64.  This is pin
> > compatible with the SAM7S128 and SAM7S256 and will do for initial
> > prototypes.  
> 
> No the W3100A does support 100 base T. Although you need a seperate
> PHY and of course the magnetics + connector. They have a module which
> includes the W3100A device + the Realtek RTL8201L Phy. One only need
> to add the magnetics. If you actually use the module, then you can offer
> the board without the module at a reduced price, and people can later
> add it. Nice when one is on a tight budget.

Unless you really need some speed.  You said it interfaces by I2C
which is very slow by comparison, ~400 kbps vs. >10 Mbps.  

I don't plan to sell the board in versions, that gets to be a PITA. 
But I will likely sell a bare board version if you want to
do-it-yourself.