System and method for measuring bus frequency

Details System and method for measuring bus frequency System and method for measuring bus frequency

2005-04-19

2005-04-19

Hoff, Marc S. (Department: 2857)

Data processing: measuring, calibrating, or testing

Testing system

Signal generation or waveform shaping

C702S124000, C702S179000, C702S182000

Reexamination Certificate

active

06882952

ABSTRACT:
The present invention is directed to a method and system for measuring bus frequency. A system suitable for determining bus frequency may include a bus device and a processor. The bus device is suitable for performing an operation and the processor is communicatively coupled to the bus device utilizing a bus. The processor is capable of starting a timer, initiating the bus device to perform a number of operations, receiving an indication that the bus device completed the number of operations, stopping the timer when the indication is received. A bus clock frequency is computed based upon time taken to complete the number of operations as indicated by the timer and the number of operations performed by the bus device.

REFERENCES:
patent: 6260073 (2001-07-01), Walker et al.
patent: 6421754 (2002-07-01), Kau et al.
patent: 6618782 (2003-09-01), Gulick et al.
patent: 6813674 (2004-11-01), Velasco et al.

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