1. A method comprising: receiving a sequence of input samples; sequentially making a decision for each of the input samples using a decision device; providing the decision output to a feedback equalizer; providing an offset from the feedback equalizer to the decision device such that each input sample is input to the decision device unaltered by the feedback equalizer, the offset generated in the feedback equalizer using a previous decision output; adjusting an internal reference in the decision device based on the offset; and providing a decision from the decision device for the next input sample after adjusting the internal reference.