Self-aligned double patterning methods that can be used in back-end-of-line processing and other stages of integrate circuit device manufacturing. While in the directional mode, the station is sensitive to receiving signals arriving from a sensing direction other than from a reception direction, and the station transmits signals toward the sensing direction. The first palladium layer is diffused through a native oxide of the p-type group III-nitride layer to make electrical contact with the p-type group III-nitride layer. One or more other resources of the IO interface are for supporting communications of another link of the plurality of links. The recovery and swapping procedures are implemented in a manner that is substantially transparent to a host or client requires no additional input from the host or client.