Hardware Description
Newton Development Platform Hardware Manual
Copyright® 2005-2014 Ingenic Semiconductor Co., Ltd. All rights reserved.
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Figure 2-1 Ingenic Newton Board
2.2 Power
Newton board can be powered by USB and by a Li-on battery. The battery can only get 500mA from
the USB. Connect the Li-on battery with the board and press the POWER button, the ONKEY signal
of PMU will be pulled low. When PMU get this signal, it will power the system and send out a RESET
signal, the system starts working. You can press the POWER button keeping a few seconds to shut
down the system (controlled by software). When CPU receives the POWER signal, it will control
PMU to turn off the power of system by the SMB bus. If there is something out of control, you can
press the POWER button for 7.5 second; PMU will turn off the power and then reset the system.
The PMU chip is Dialog DA9024, powered +3.3V, +1.8V, +1.2V, +2.5V for system, VCORE of
DA9024 2.5V for RTC controller through a diode.
2.3 System Reset
When power on, PMU provides a RESET signal to CPU. When the system is power on, you can
press the POWER button for 7.5 second, and then the PMU will output a RESET signal to CPU.
2.4 System boot mode
The Newton board has 2 boot modes:
USB
