Hi,
I cant seem to use neither INT0 nor INT1 as external Interrupt inputs on the LPC932A1. There was a similar thread back in 2003 but unfortunately it wasn't completed. I'm using Uv2 IDE and A51 compiler.
What I observe using EX1 is as follows: EX1=1 EA=1
when IT1=0, ISR gets called all the time no matter what level P1.4 is at.
when IT1=1, ISR executes only once no matter what level P1.4 is at.
so it appears that the actual pin level is not activated for external interrupt use.