On-board diagnostic circuit for an integrated circuit

Details On-board diagnostic circuit for an integrated circuit On-board diagnostic circuit for an integrated circuit

2003-04-17

2008-10-28

Baderman, Scott T. (Department: 2114)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S027000, C714S030000

Reexamination Certificate

active

07444546

ABSTRACT:
An integrated circuit having a plurality of functional circuits interconnected via a functional bus is provided with a diagnostic bus-master circuit which uses bus transactions on the functional bus to perform diagnostic operations. These diagnostic operations can be performed in real time during normal speed operation of the integrated circuit to produce more accurate diagnostic results. The diagnostic bus-master circuit is particularly useful for reading data values from memory or writing data values to memory as part of diagnostic operations.

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