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3248results about "Functional testing" patented technology

Circuits, systems, apparatus and processes for monitoring activity in multi-processing systems

An electronic circuit includes a first processor (100) operable to perform processing operations, a first trace buffer (230) coupled to the first processor (100), a first triggering circuit (210) coupled to the first processor (100), the first triggering circuit (210) operable to detect a specified sequence of particular processing operations in the first processor (100); a second processor (101), a second trace buffer (231) coupled to the second processor (101), a second triggering circuit (211) coupled to the second processor (101), the second triggering circuit (211) operable to detect at least one other processing operation in the second processor (101); and a cross trace circuit (330) having a trace output and having inputs coupled to the first triggering circuit (210) and to the second triggering circuit (211), the cross trace circuit (330) configurably operable to respond to a sequence including both a detection of the sequence of particular processing operations of the first processor (100) by the first triggering circuit (210) and a detection of the at least one other processing operation of the second processor (101) by the second triggering circuit (211), to couple at least one of the first trace buffer (230) and the second trace buffer (231) to the trace output. Various circuits, devices, telecommunications products, wireless handsets, systems and processes of operation and manufacture are disclosed.
Owner:TEXAS INSTR INC

Method and system for triggering a debugging unit

A processor core for transitioning a debugging unit between a plurality of operating states in response to an instruction stream is disclosed. The processor core generates trace data as it processes operating signals of the instruction stream. The processor core provides a first trigger event signal to the debugging unit in response to a first trigger instruction signal within the instruction stream that is representative of a triggering instruction to transitions the debugging unit to a base operating state. The processor core provides a second trigger event signal to the debugging unit in response to a second trigger instruction signal within the instruction stream that is representative of a triggering instruction to dynamically store trace data within the memory component of the debugging unit. The processor core provides a third trigger event signal to the debugging unit in response to a third trigger instruction signal within the instruction stream that is representative of a triggering instruction to statically store trace data within the memory component of the debugging unit. Concurrently or alternatively, the processor core can provide one or more of the trigger event signals to the debugging unit as a function of a generated trigger data in response to additional operational instructions within the instruction stream.
Owner:IBM CORP
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