AVR-Chat

--- In AVR-Chat@yahoogroups.com, Jon Hylands <jon@h...> wrote:
> On Tue, 8 Feb 2005 09:05:18 -0000, "Paul Maddox"
> <P.Maddox@s...> wrote:
> 
> > Its a really BIG shame as I had several uses for it, but I'm 
sorry the IO is
> > just absurdly slow.
> > A waste of, potentially, a great chip!
> 
> Is that a general property of the ARM7 chips, or something specific 
for
> that Philips board?

It's inherent in the ARM architecture, the APB (Advanced Peripheral 
Bus) which is generally used for ordinary I/O is simple but very 
slow. The AHB (Advanced High-performance Bus) is much faster and a 
lot more complicated.

Leon