- The in-circuit emulator (ICE) is commonly adopted as a microprocessor debugging technique. In this paper, a parameterized embedded in-circuit emulator and its retargetable debugging software are proposed. The parameterized embedded in-circuit emulator can be integrated into different style processors such as microcontroller, microprocessor, and DSP processor. The GUI interface debugging software can help user to debug easily. As a result of it, the duration of microprocessor debugging design procedure time is reduced.