Automatic detection of connectivity between an emulator and a target device
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United States of America Patent
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-
Aug 9, 2005
Grant Date -
May 16, 2002
app pub date -
Mar 2, 2001
filing date -
Mar 2, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
Connectivity between an emulation controller and a plurality of target devices can be automatically detected. After the target devices (Chip1, ChipN) and the emulation controller (12) tri-state respective terminals thereof, one of the target devices drives a predetermined logic level on each of the aforementioned terminals thereof in sequence, while maintaining the remainder of the aforementioned terminals thereof tri-stated. These driving (33) and maintaining (31) operations are thereafter performed by each of the remaining target devices in sequence. During each driving step, all of the target devices and the emulation controller read logic levels at their aforementioned terminals (34, 43).
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