If you're using CW for ColdFire 6.4, you can use the Project Wizard to create a project that uses the M5485. In the project window's pull-down menu, you'll see a number of build targets: M5485 Console Debug, M5485 UART SRAM, M5485 UART SDRAM, and M5485 ROM. The two build targets with UART in the names are designed to communicate with a serial port's UART at 19200 baud, 8 bits, 1 stop bit, and no parity. You need a serial cable to connect the board's serial port to your computer's serial port. Consult the readme.txt file embedded in the project for more information.
---Tom