Communication
In this section:
The Communication options determine how the E1, E2, E2 Lite, EZ-CUBE2 or E20 emulator communicates with the host computer.

Serial No
Selects which Renesas emulator to use, if more than one is connected to your host computer via USB.
Communication log
Logs the communication between C-SPY and the target system to the specified log file, which can be useful for troubleshooting purposes. The communication will be logged in the file cspycomm.log, located in the current working directory. If required, use the browse button to locate a different file.
To interpret the result, detailed knowledge of the interface is required.