Combined in-circuit emulator and programmer

Details Combined in-circuit emulator and programmer Combined in-circuit emulator and programmer

2006-08-08

2006-08-08

Rodriguez, Paul L. (Department: 2123)

Data processing: structural design, modeling, simulation, and em

Emulation

In-circuit emulator

C703S020000, C714S028000

Reexamination Certificate

active

07089175

ABSTRACT:
A combined in-circuit emulation system and device programmer. A pod assembly used in an in-circuit emulation system has both a real microcontroller used in the In-Circuit Emulation and debugging process as well as a socket that accommodates a microcontroller to be programmed (a program microcontroller). Programming can be carried out over a single interface that is shared between the microcontroller and the program microcontroller and which is also used to provide communication between the real microcontroller and the In-Circuit Emulation system to carry out emulation functions. In order to assure that the emulation microcontroller does not interfere with the programming process for a microcontroller placed in a programming socket, a special sleep mode is implemented in the emulation microcontroller. This sleep mode is activated by a process that takes place at power on in which the a reset line is released with a specified data line held in a logic high state.

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