| CPC G06F 13/1694 (2013.01) [G06F 13/1673 (2013.01)] | 20 Claims |
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1. A termination leg unit circuit comprising:
a first circuit comprising a first plurality of switches configured to switchably connect a voltage supply to a data bus according to a target impedance between the voltage supply and the data bus; and
a second circuit connected in series between the first circuit and the data bus, the second circuit comprising a second plurality of switches configured to switchably connect a plurality of resistors between the first circuit and the data bus according to the target impedance, wherein the second circuit comprises a plurality of pairs, each pair comprising one of the second plurality of switches connected in parallel with one of the plurality of resistors.
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