POWER-ON KEY
signal input
Pin 25 (VTCXO=2.7V)
Pin 1 (PWRON_EN)
Pin 2 (Power Key)
This signal should go HIGH when the power-on
procedure is completed.
Pin 22 (VCORE=2.45V)
Pin 6 (VRTC>1.2V)
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4. TROUBLE SHOOTING
These powers should
be necessary to
power on.
Pin 21 (VMEM=2.8V)