Lpc2000

I observed that when PLL is on, I cannot bring down the power 
consumption equal, to that of when Boot loader is running, I wonder 
what boot loader is doing (if at all other than sleeping). 

But otherwise sleep mode definitely reduces a lot power consumption, 
but still not up to mark. 

Is it possible for the chip to work properly even if PLL is not used??

Thanks
Yug

--- In lpc2000@yahoogroups.com, "dave_albert" <david_albert@h...> 
wrote:
> Does anyone know what the power consumption of the LPC210x or 211x 
is 
> with the CPU in IDLE mode and only the RTC running?  I can only 
find 
> figures for active and power down modes, but not idle mode.
> 
> Also, how much power could be saved by turning off the PLL and 
> running from the crystal oscillator directly.
> 
> I need to minimize power consumption and wake up periodically to 
log 
> data.  I'd like to do this without adding additional components as 
> this is a cost sensitive application.