Lpc2000

Hallo there,

I need some help with a rough powerestimation for an possible 
aplication an the LPC2105.
I know that an estimation without a dedicated Hardware and the 
Information about the used I/O loads is realy hard, thats also a 
reason why I try to get some information here.

In the Datasheet I found the "static" powerconsamtion of the core to 
be 30mA * 1.8V = 54mW only for the core. 
The apllication I would like to estimate would need one UART-Port 
running at upto 115200 baud perhapes only 38400 (not clear jet). In 
addition to that I would need 12 GPIOs to communicate with three 
different AD-converters. 4 outputs and 2 inputs should run at 2.2MHz. 
The other 4 pins should run at 1MHz (3 output, 1 input).
I think i´d need also the captuer compare timers and the interrupt 
controller to solve the required algorithm and to synchronize the 
converters. 

The Algorithm wich should run on the System would be an 1024-point 
FFT, wich leads me to the next question if this is possible to manage 
with the LPC2106 and wich clock I would need (think 25Mhz are not 
enough so I have to work with 60MHz or am I wron?).
In addition to that the 1-bit inputsignals from the GPIO should be 
serial-parallel converted to a 16-bit value. Some derivatives and 
calculation of Moments (out of the power density spectrum after the 
FFT) should also be implemented.

I am really not familiar with MCUs and programming in C or assembler. 
My main interst is to get a rough powerestimation in comparison to a 
much more consuming FPGA solution, wich will need several Watts.

I hope you could help me or give me some additional hint where to 
find some useable answers

Regards
Andreas Kirsch