From Manuals

I2C Real-Time Clock (RTC)

Compatibility Eagle 50, 50E

This example application excersizes the optional I2C RTC. It provides a simple command console via a serial port for issuing commands to set and read the RTC.

The first UART, which is connected to the COM1 on the Eagle microcontroller board, is configured for 115,200 bits per second, and 8-n-1 mode. When the program is started a message will be printed to the terminal. Type “help” for command help.