Energy detect with auto pair select

An energy detect with auto pair select system, comprising:

• a device that is operable to perform energy detection with auto pair selection;
• a wire pair that is communicatively coupled to the device, wherein the wire pair includes at least one of a transmit pair and a receive pair, and
• wherein the device determines whether the wire pair comprises an energy;
• the device subtracts a link pulse energy from the energy when the device transmits a link pulse to generate a qualified energy, the link pulse energy is associated with a link pulse that is transmitted from the device;
• the device uses the energy as the qualified energy when the device does not transmit a link pulse;
• the device uses the qualified energy to determine whether at least one additional device is communicatively coupled to the device via the wire pair;
• at least one additional wire pair, which includes at least one of a transmit pair and a receive pair;
• and
• wherein the device sums energy on the wire pair and energy on the at least one additional wire pair.

An energy detect with auto pair select system, comprising:

• a device that is operable to perform energy detection with auto pair selection;
• a plurality of wire pairs that is communicatively coupled to the device;
• a state machine that is operable to determine connectivity of the device;
• and
• wherein the device performs auto media dependent interface crossover functionality when at least two wire pairs within the plurality of wire pairs are transposed;
• the device determines whether at least one wire pair within the wire pair comprises an energy;
• the device subtracts a link pulse energy from the energy, when the device transmits a link pulse, to generate a qualified energy, the link pulse energy is associated with a link pulse that is transmitted from the device;
• the device uses the energy as the qualified energy when the device does not transmit a link pulse;
• the device provides the qualified energy to the state machine;
• the state machine determine whether at least one additional device is communicatively coupled to the device via the at least one wire pair;
• and
• the device performs energy savings management.

An energy detect with auto pair select method, the method comprising:

• performing energy detection of a plurality of wire pairs, at least one wire pair within the plurality of wire pairs is communicatively coupled to a device;
• generating a qualified energy by considering an energy associated with at least two wire pairs within the plurality of wire pairs;
• determining whether at least one additional device is communicatively coupled to the device via at least one wire pair within the plurality of wire pairs;
• performing auto power down when no device is communicatively coupled to the device via the wire pair;
• and
• performing auto media dependent interface crossover functionality when the wire pair is transposed with at least one additional wire pair.

An energy detect with auto pair select method, the method comprising:

• performing energy detection with auto pair selection on a device having a wire pair communicatively coupled thereto;
• determining whether the wire pair comprises an energy;
• subtracting a link pulse energy from the energy, when the device transmits a link pulse, to generate a qualified energy, the link pulse energy is associated with a link pulse that is transmitted from the device;
• using the energy as the qualified energy when the device does not transmit a link pulse;
• and
• using the qualified energy to determine whether at least one additional device is communicatively coupled to the device via the wire pair.