Lpc2000

Hello,

I am designing a board based on LPC2124 and I want to reset the 
device when the core voltage (1.8v) is not good. I have a voltage 
supervisor of 1.8v which makes the reset (0v) but after the reset it 
supplies 1.8v to the reset pin. Is this a legal voltage for the reset 
pin? The manual says that this pin is Schmitt trigger but also says 
that is TTL compatible. So, during reset I will have no problems but 
after reset? Is 1.8v capable to bring LPC2124 out of reset condition?

Thank you very much.