Lpc2000

> Since the lowest xtal freq that can be used with USB is 12Mhz, then the
> minimum clock for the CPU is 24Mhz. is this correct ?

That's the way I read it.  I found things work fine running core at 12MHz,
although I'm running at 24MHz.  I wonder what the context is for the 18MHz
minimum is. 

Joel