Patent ID: 6756810
Filing Date: 2004-06-29
Classification: H03K,H04L

Abstract:
An article of manufacture, comprising:a machine-readable medium having stored thereon instructions to: activate at least one of a first plurality of impedance-generation devices associated to a first circuit attribute, until an impedance of the activated impedance-generation devices substantially matches art impedance of a single external impedance element; based on a number of the activated impedance-generation devices, generate a reference impedance code corresponding to the impedance of the activated impedance-generation devices; shift the reference impedance code by a first amount to generate a first shifted reference impedance code; and use the first shifted reference impedance code to activate at least one of a second plurality of impedance-generation devices to generate an impedance associated with a second circuit attribute different from the first circuit attribute associated with the first plurality of transistors.