Program-controlled unit

Details Program-controlled unit Program-controlled unit

2006-05-23

2006-05-23

Le, Dieu-Minh (Department: 2114)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S733000

Reexamination Certificate

active

07051237

ABSTRACT:
A program-controlled unit has debug resources that outputs trace information including selected addresses, data and/or control signals and that can be used to trace the course of the operations occurring within the program-controlled. The debug resources monitor whether a predefined change in the level of one or more predefined bits of the addresses, data and/or control signals contained in the trace information has taken place, and start or terminate the generation of trace information as a function of the result of this check. Additionally or alternatively, the trace information that is output is a component of messages having a variable length portion that contains the trace information. Additionally or alternatively, the trace information that is output is a component of messages, and it is possible to determine which trace information is located at which point within the message.

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patent: 6094729 (2000-07-01), Mann
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patent: 6665816 (2003-12-01), Edwards et al.
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patent: 2 073 459 (1981-10-01), None
patent: WO 00/63777 (2000-10-01), None

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