Lpc2000

When trying to reduce the overall current draw in the power-down mode 
on an LPC2214 processor, we noticed some peculiar behavior on some of 
the port pins (P0.7, P0.14, and P0.20). The chip draws 230uA more 
current on the 3.3V supply per pin when any of these pins is tied 
high rather than low. There was no change on the 1.8V current.

Does anyone know what is going on inside the chip to cause the 
additional current draw?

Bill