Lpc2000

Hello all,

a hardware related question: the LPC2210 has a dual power supply: 1.8V
core voltage and 3.3V for the I/O.  
Is the power-on (and power-off) sequence of these 2 voltages critical?
Will a 1.8V regulator behind the 3.3V regulator do the job? The 1.8V
will be a little bit later during power-on.

We bought a development board from Phytec and that board contains a
bunch of components to adjust the power-on sequence.  The datasheet of
the LPC2210 does not mention any potential problems or limits between
the 2 supply voltages.  So I wonder why Phytec did go through the
troubles of placing the extra components...

Regards,
Pieter Verstraelen






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