Lpc2000

--- In lpc2000@yahoogroups.com, "Curt Powell" <curt.powell@s...> wrote:
> Charles,
> 
> These appear to be USB 2.0 full speed (12 Mbps) devices, not high
speed (480
> Mbps) devices, correct?   If so then they don't differ much from
other USB
> interface chips such as those from ftdi, except possibly lower component
> counts.

I'm pretty sure you won't find any high speed USB chips with an
integrated physical interface (PHY).  I seem to recall that the high
speed interface requires something fundamentally different in the chip
design that would require additional mask layers, so it makes the chip
less cost effective.  Is you need high speed, you can count on using a
separate PHY chip for now.  

I just did a search and found a number of articles about IP vendors
adding USB PHY cores to their product line.  So it may not be too much
longer before we see interface chips for high speed with the
integrated PHY.