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Lpc2000

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Message

LPC2292 in Power Down Mode

2005-10-05 by dpbevin2k

Hi all,

I'm trying to use an LPC2292 in a extremely low power situtation (i.e.
the whole board < 0.5mA at 3.3V).

So far, I've put the 2292 into Power Down mode (I see the oscillator
stop) and the board gets down to about 0.8mA.

I've tried things like:

 - disabling the EMC and making all pins GPIO inputs (0.8mA)
 - disabling the EMC and driving all GPIO pins high (1.6mA)
 - not disabling the EMC with 1M pullups on D0-D15 (2.0mA)
 - disabling the EMC and driving all GPIO pins low (2.8mA)

NOTE: There are NO peripherals on the memory bus at the minute.

Does anyone have any ideas as to what I'm doing wrong??? What's the
best state to leave the 2292 in to acheive the best results?

Thanking you in advance

Dave Bevin

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