Communication equipment with boundary scan elements
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United States of America Patent
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-
Jul 8, 2003
Grant Date -
N/A
app pub date -
Nov 23, 1999
filing date -
Jun 2, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A communication system includes a plurality of boundary scan elements including input and output terminals and a plurality of boundary cells individually assigned to the respective input terminals and output terminals, a plurality of data output units connected parallel to the boundary scan elements, and a communication controller connected to the boundary scan elements in series. The communication controller transmits and receives through the boundary scan elements control data for individually controlling the data output units. A signal data communication line is connected with the data output units in parallel, and a signal processing unit is connected with the signal data communication line and the communication controller for transmitting output data from the data output units under a control of the communication controller.
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