Lpc2000

Hi

I am using MCB2130 of Kiel.
My program use FIQ and RIQ on EXTINT1 & EXINT2
When simulating on Keil every thing is OK
but in Real worled it seams that the interrupts are not working
Dose the 5v tolerant of the IO's means that the EXTINT can be 0-5V or 
it had to be 0-3.3V?

Salam
Hossam Alzomor