Lpc2000

At 09:11 PM 4/30/06 +0100, Paul Curtis wrote:
> > I provided my OS and applications for ST10 a while back.  Although it
> > was an 8-bit CPU of 8086 variety, I did find it had some nice features
> > that were cleverly implemented and allowed me to boot load it through
> > serial port.
>
>Bloody hell.  When did the C166 become an 8-bit CPU?  All registers on
>the C166 are 16 bits and so is the data bus.  When did the C166 grow an
>x86 instruction set?

I was wondering about that myself.  Although both use segmented memory 
addressing and are 16bit CPUs (only the 8088 and 80188 had an 8 bit 
external bus as I recall and the ST10 can be configured as an 8 bit 
external bus as well) they don't resemble one another at all.

I rather liked the ST10's interrupt structure and peripheral 
set.  Unfortunately the variant I was using was one of the buggiest micros 
I've ever used.  As it turned out the biggest problem I had was a bug in a 
commercial kernel but that was kept hidden by the cpu bugs.  I don't belive 
that was a family problem though.

I expect this is one of the CPU families the ARM is likely to shunt to the 
sidelines.  Its only advantages over the ARM are its interrupt structure 
and its peripheral set.  The latter is disappearing as more ARM variants 
become available and the ARMs are cheaper to boot.

Robert

" 'Freedom' has no meaning of itself.  There are always restrictions,   be 
they legal, genetic, or physical.  If you don't believe me, try to chew a 
radio signal. "  -- Kelvin Throop, III
http://www.aeolusdevelopment.com/