Circuit arrangement for in-circuit emulation of a microcontroller
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United States of America Patent
Stats
-
Apr 2, 2002
Grant Date -
N/A
app pub date -
Sep 28, 1998
filing date -
Sep 26, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A circuit configuration allowing for in-circuit emulation, comprising a memory containing an operating program; and a first and second microcontrolller. Each microcontroller has a computer core, at least five external connection ports, and a setable connecting device selectively connecting the computer core to the connection ports. A first connection port of the first microcontroller is connected to a first connection port of the second microcontroller. The memory is connected to at least a second one of the connection ports of the first microcontroller. The connecting devices are set to provide the computer core of the first microcontroller with the operating program contained in the memory, and are set to provide data transfer between the first connection port of the first microcontroller and the first connection port of the second microcontroller.
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