Error detection/correction and fault detection/recovery – Pulse or data error handling – Digital logic testing
Reexamination Certificate
2008-06-17
2008-06-17
Britt, Cynthia (Department: 2117)
Error detection/correction and fault detection/recovery
Pulse or data error handling
Digital logic testing
C714S718000, C365S201000
Reexamination Certificate
active
07389459
ABSTRACT:
A data processing apparatus is provided having a plurality of functional units. At least one of the functional units is operable to perform data processing operations and at least a subset of the plurality of functional units have at least one of a respective co-processor register for storing configuration data and a respective debug register for storing debug data. A debug controller outputs debug data and co-ordinates debug operations. A configuration ring-bus provides a ring path for communication of configuration instructions between a first ring sequence of the plurality of functional units and a debug ring-bus provides a ring path for communication of the debug data between a second ring sequence of the plurality of functional units. Separate provision of the debug ring-bus and the configuration ring-bus provides independent access to the co-processor register and to the debug register.
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Allue Conrado Blasco
Hill Stephen John
Williamson David James
ARM Limited
Britt Cynthia
Nixon & Vanderhye P.C.
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