I use GPIO1 to wake up PXA270 from sleep mode.And GPIO0 is connected
to CS8900A's INT pin.When getting into sleep mode,I cut off the power
supply to cs8900a.So GPIO0 is pulled to low.When I push the key to
make a falling edge to GPIO1.PWR_EN is enabled,but no program execute.
If I do not cut off the power supply to cs8900a(GPIO0 is not pulled
down).System is successfully waked up.
Why?Who can help me?