The power management circuitry controls the transitions between the modes shown in the table below. The VDD supply can operate in one of 2 modes, low power or high power. The low frequency oscillator (LFO) is always enabled.
----------------------------------------------------------------------- Mode Vcc Supply CPU Clock Display Timer Clock HFO ----------------------------------------------------------------------- Static - OFF OFF OFF OFF Deep Sleep OFF OFF OFF OFF OFF Light Sleep ON OFF ON ON ON Operating ON ON ON ON ON Backup OFF OFF OFF OFF OFF -----------------------------------------------------------------------