User`s manual

High Performance Low Cost Embedded Systems
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Power System
The mini2440’s power system is simple. It should be connected to an external 5V power supply, and
utilizes a voltage step-down chip to generate three kinds of voltages: 3.3V, 1.8V and 1.25V.
This system is not for hand-held devices, therefore it does not have a full-featured power management
circuit. The system is turned on or off by toggling switch S1. It is not under software control.