> I am afraid that I am not keeping up with the latest
> news. Does xscale provide software controlled voltage
> and frequency scaling? Is there a test board (like
> Assabet for StrongARM) I can buy?
>
> Thank you for the information.
>
> =====
> Robert Lee
XScale provides for on-the-fly software controlled core frequency scaling and it
tolerates its core supply voltage being scaled dynamically as well. Of course,
implementing core supply voltage scaling will require a suitable
digitally-controlled switching regulator on your board.
Our 80200EVB eval board has a core supply regulator that is adjustable but not
via software. I have heard of customers bypassing the on-board supply by using
a Maxim MAX1855 switching regulator eval board. This can produce 0.6V to 1.75V
for the core based on a 5-bit output controlled by software.
/--------------------------------------
/ Steve Yates, President
/ ADI Engineering, Inc.
/ 804-978-2888 x1
/ http://www.adiengineering.com
/--------------------------------------
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