Boardcon Android6410, Reference Manual, Page: 43 / 110

www.armdesigner.com
Android6410 Reference Guide 43
3.3.15 RTC
S3C6410 CPU is built-in RTC clock controller, without external RTC clock control chip.
Android6410 equipped with a CR1220 button battery models BT1, when the board
power-down, BT1 battery provide voltage, so that the RTC in CPU will continue to work;
when the board is in power, VDD3_IO will supply the RTC power.
3.3.16 LED User indicator
Android6410 configured two LED lights to indicate system operation, LED working status
of each LED connected via GPIO port to control.
3.3.17 Reset Button
Android6410 system reset button using the 6 × 6 mm Tact switch, reset chip use
MAX811T. Reset chip to ensure system security, stability, state of the work.