When ODT is used, the INTERMDISABLE port can be used to disable the ODT termination when a reduction of power is desired. The IBUF_INTERMDISABLE, IOBUF_INTERMDISABLE, IBUFDS_DIFF_OUT_INTERMDISABLE, IBUFDS_INTERMDISABLE, and IOBUFDS_DIFF_OUT_INTERMDISABLE primitives can all be used in the HD I/O. See SelectIO Interface Primitives for more details on these primitives.