Lpc2000

alternatively if you are using an LPC with the peripheral bus you 
can easily add a UART chip (Philips have a large range) and add any 
number of UART ports. Relatively cheaply too.

Again, drivers need writing but very simple to do so...

I believe they have singles,duals,quads and octals available...

rgds
pete

--- In lpc2000@yahoogroups.com, "Leon Heller" <leon_heller@h...> 
wrote:
> 
> 
> 
> >From: "Lasse Madsen" <lasse.madsen@e...>
> >Reply-To: lpc2000@yahoogroups.com
> >To: <lpc2000@yahoogroups.com>
> >Subject: RE: [lpc2000] 3rd serial port
> >Date: Mon, 18 Oct 2004 14:27:07 +0200
> >
> >
> >Hi Gabe
> >
> >Maxim makes SPI=>RS232 converters by as far as i remember they are
> >pretty expensive...
> 
> I've used them, and they are very good, but expensive. Another 
option would 
> be to use a small '2313 AVR (or a PIC) as a software UART 
connected to the 
> LPC2000 via SPI. I did this once for a comms hub, with software 
SPI running 
> on three '2313s, connected to a mid-range PIC, and it worked very 
well. 
> Hardware cost will be lower, but software will have to be written. 
It was a 
> cheaper solution in our case, for quantity production.
> 
> Leon