Patent ID: 7356716
Filing Date: 2008-04-08
Classification: G06F

Abstract:
1. A computer-implemented method comprising: identifying a target voltage; incrementing a trim control counter value, wherein each incremented trim control counter value selects one of a plurality of tap voltages: using each of the incremented trim control counter values to compare each of the plurality of tap voltages to the target voltage; in response to comparing each of the plurality of tap voltages to the target voltage, detecting whether one or more of the plurality of tap voltages is at a higher voltage level than the target voltage, the detecting resulting in a plurality of comparison values; storing the plurality of comparison values in a shift register; determining which one of the plurality of tap voltages correlates to the target voltage based upon the plurality of comparison values, the determining resulting in a trimmed reference voltage; and providing the trimmed reference voltage to one or more devices.