Clock frequency ratio monitor
AssigneeIntel Corporation
InventorsYossi Ben Simon, Ido Kahan, Ofir Shwartz, Ernest Knoll, Assaf Admoni
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Abstract
An apparatus comprising a frequency monitor circuitry to receive a first clock signal, a second clock signal and an expected frequency ratio, determine whether a ratio between the first clock signal and the second clock signal matches an expected an expected frequency ratio and generate an error signal upon a determination that the ratio between the first clock signal and the second clock signal does not match the expected frequency ratio.
Claims22
An apparatus comprising a frequency monitor circuitry to receive a first clock signal, a second clock signal and an expected frequency ratio, determine whether a ratio between the first clock signal and the second clock signal matches an expected frequency ratio and generate an error signal upon a determination that the ratio between the first clock signal and the second clock signal does not match the expected frequency ratio.
A method comprising:
- receiving a first clock signal;
- receiving a second clock signal;
- receiving an expected frequency ratio;
- determining whether a ratio between the first clock signal and the second clock signal matches an expected frequency ratio;
- and
- generating an error signal upon a determination that the ratio between the first clock signal and the second clock signal does not match the expected frequency ratio.
A system comprising:
- a first integrated circuit (IC);
- and
- a second IC, coupled to the first IC, including:
- a frequency monitor circuitry to receive a first clock signal from the first IC, a second clock signal from the second IC and an expected frequency ratio, determine whether a ratio between the first clock signal and the second clock signal matches an expected frequency ratio and generate an error signal upon a determination that the ratio between the first clock signal and the second clock signal does not match the expected frequency ratio.
At least one computer readable medium having instructions stored thereon, which when executed by one or more processors, cause the processors to:
- receive a first clock signal;
- receive a second clock signal;
- receive an expected frequency ratio;
- determine whether a ratio between the first clock signal and the second clock signal matches the expected frequency ratio;
- and
- generate an error signal upon a determination that the ratio between the first clock signal and the second clock signal does not match the expected frequency ratio.
Dependencies are inferred from the claim text.