Combined in-circuit emulator and programmer
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Aug 8, 2006
Issued Date -
N/A
app pub date -
Nov 1, 2001
filing date -
Oct 26, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
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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