Setting The Alarm / Using Command Mode

If you are going to be using the alarm functions and you need to put the ChipCap2 into Command mode, it is recommended to power the board from one of the microcontrollers digital pins, since the current consumption is low enough there is no problem doing this. To enter command mode there must be an i2c command sent within 10ms of power on that's why it is easier to let the mcu / library function handle it for you.

ChipCap2™ Manufacturers Documentation

ChipCap2™ Series Datasheet
ChipCap2™ Appl Guide