Lpc2000

Greetings all,
     I am designing a battery powered app. and am considering
different scanarios with regard to low power modes and charge pumps. 
I am considering the TI TPS60213 charge pump to boost the 3V battery
voltage as they run down.  The "active mode" quiescent current of the
charge pump is too high but there is a "snooze" mode of 2uA.  Snooze
mode is entered by bringing a pin low, maximum current supplied by the
charge pump in snooze mode is 2mA.
The processor (2106) will be drawing much more than this when it
triggers snooze mode but I plan to have a large enough cap on the
supply so that it will be able to supply enough energy with the
asssumption that the micro immediatly goes into powerdown following
the line of code that sends the charge pump into snooze mode.  The
charge pump has a "power-good" signal that can be used to wake up the
micro.
When the micro is asleep and the charge pump is in snooze mode a
"wake-up" by a button has to wake up the charge pump first by
asserting the snooze pin.  the micro will drive the snooze pin through
a resistor, the button will over-ride the micro signal.  When the
micro wakes up IT asserts the snooze button, latching the signal, and
then the finger goes away.

Anyone else have another solution?

Rich