Running System Debug requires the presence of a Debug Agent on the target to handle requests from the RealView Debugger host components.

The Debug Agent and RealView Debugger communicate with one another using the Debug Communications Channel (DCC). This enables data to be passed between the debugger and the target using the ICE interface, without stopping the program or entering debug state. The Debug Agent provides debug services for RealView Debugger and interacts with the RTOS and the application that is being debugged.