Patent ID: 7486130
Filing Date: 2009-02-03
Classification: G06F

Abstract:
1. An integrated circuit, comprising: a first clock distribution network distributing a first clock signal to a first set of circuit elements, the first set of circuit elements and at least a portion of the first clock distribution network located in a portion of the circuit characterized by a first circuit characteristic; and a second clock distribution network distributing a second clock signal to a second set of circuit elements, the second set of circuit elements and at least a portion of the second clock distribution network located in a portion of the circuit characterized by a second circuit characteristic different from the first circuit characteristic; wherein the second clock distribution network includes a source of the second clock signal derived from a portion of the first clock distribution network located in the portion of the circuit characterized by the second circuit characteristic; and wherein the first circuit characteristic comprises a first supply voltage source for the first set of circuit elements, and the second circuit characteristic comprises a second supply voltage source for the second set of circuit elements; and wherein the first supply voltage source comprises a varying supply voltage source, and the second supply voltage source comprises a substantially fixed supply voltage source.