Lpc2000

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.

Regards
  Anton Erasmus

-- 
A J Erasmus