Lpc2000

> ok, but what you really benefit from the embedded MAC when you anyway
> will need external PHY connected to the chip?

Sure, I/O bandwith and PHY choice.  Having a built-in PHY locks your part
into a niche, while limiting potential markets.

The Dallas DS80C390/400 series took the separate PHY approach, they did
pretty good.  They aren't even Flash based.

> I'll tell you from manufacturing point of view: almost nothing, no
> space saving, no price reduction, still two chip solution the price
> difference between MAC+PHY chip is just add to the SAM7S vs. SAM7X
> price.

The Infineon 10/100 ADM7001 PHY is ~$0.86 each in qty of 2500.  Cheapest
I've seen.  My guess is the LPC2300 doesn't implement a built-in PHY.

> So why do you need SAM7X instead SAM7S+ENC28J60 for instance?
> ENC28J60 nice and small footprint taking only *few* uC ports, ohh
> yeah well it takes 250mA while running at 10Mbit... so what? I don't
> intent to use it in battery powered equipment and the power adapter
> will source these 250mA without problem, and 10Mbit cover most of
> embedded applications these microcontrollers can be used for.

250ma for Ethernet on a cost conscience product is a tough sell, no matter
how you slice it.

> and of course it's pitty LPC3xxx comes in LFBGA-320 package, this
> means bye bye low cost development, hello expensive 8-10 layers,
> blind and burried vias protos :)

I understand TQFP-100 will be available first.


Joel