US 11,082,034 B1 · Cycle accurate skew adjust

Abstract

A method for cycle accurate deskewing a second clock signal with respect to a first clock signal is provided. The first clock signal has been propagated from a first clock source through a first clock tree. The second clock signal has been propagated from the first clock source through a second clock tree. The second clock tree comprises a programmable delay line for inducing a delay. The method comprises determining a first clock tree latency of the first clock tree, determining a second clock tree latency of the second clock tree, setting a cycle time of the first clock source to a measuring cycle time depending on the first clock tree latency and/or the second clock tree latency, adjusting a skew between the second clock signal and the first clock signal, setting the cycle time of the first clock source to an operating cycle time.

Claims20

Dependent claims

A method for cycle accurate adjusting a skew between a second clock signal and a first clock signal,

wherein the first clock signal has been propagated from a first clock source through a first clock tree,
wherein the second clock signal has been propagated from the first clock source through a second clock tree,
wherein the second clock tree comprises a programmable delay line operable for inducing a delay;
wherein the method comprises
determining a first clock tree latency of the first clock tree,
determining a second clock tree latency of the second clock tree,
setting a cycle time of the first clock source to a measuring cycle time depending on the first clock tree latency and/or the second clock tree latency,
adjusting a skew between the second clock signal and the first clock signal,
setting the cycle time of the first clock source to an operating cycle time.

6 more elements

Dependencies are inferred from the claim text.

Cycle accurate skew adjust

Life of this patent

Cycle accurate skew adjust

Life of this patent

Abstract

Claims20