| 摘要 |
A method for achieving power management for a PDA. The PDA includes a CPU for processing data, a microprocessor for supervising power condition of the PDA, and a display module for displaying data and information. The method includes: (a) using the microprocessor and the CPU to switch the PDA from OFF mode to SHUTDOWN mode wherein when the PDA is in OFF mode, the CPU, the microprocessor, and the display are all off, and when the PDA is in SHUTDOWN mode, the CPU and the display module are off while the microprocessor is on; (b) after step (a), switching the PDA from SHUTDOWN mode to ON mode wherein when the PDA is in ON mode, the CPU, the microprocessor, and the display module are on; (c) after step (b), switching the PDA among SHUTDOWN mode, STANDBY mode, and SCREEN TOGGLE mode.
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