Microcontroller provided with hardware for supporting debugging as based on boundary scan standard-type extensions
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United States of America Patent
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Dec 31, 1996
Grant Date -
N/A
app pub date -
Jul 28, 1994
filing date -
Jul 28, 1993
priority date (Note) -
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Abstract
A microprocessor includes a processor element, a memory interface element, an IO interface element, a debug support element and an internal bus interconnecting all above elements. For easy debugging, it also includes attached to the internal bus a registered boundary scan standard (JTAG) interface that accesses one or more scan chains inside the microprocessor, and is arranged for controlling DMA-type exchanges via the internal bus with other elements connected to this bus.
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