Physical coding sublayer for a multi-pair gigabit transceiver
AssigneeBroadcom Corporation
InventorJohn L. Creigh
Life of this patent
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Abstract
A physical coding sublayer (PCS) transmitter circuit generates a plurality of encoded symbols according to a transmission standard. A symbol skewer skews the plurality of encoded symbols within a symbol clock time. A physical coding sublayer (PCS) receiver core circuit decodes a plurality of symbols based on encoding parameters. The symbols are transmitted using the encoding parameters according to a transmission standard. The received symbols are skewed within a symbol clock time by respective skew intervals. A PCS receiver encoder generator generates the encoding parameters.
Claims22
A transmitter apparatus comprising:
- a symbol encoder operable to generate a plurality of encoded symbols within a transmitter clock period;
- a symbol-skewing circuit operable to skew the plurality of encoded symbols by an amount that is a predetermined fraction of the transmitter clock period.
A method of processing data to be transmitted over a transmission medium, the method comprising:
- generating a plurality of encoded symbols within a transmitter clock period;
- and
- skewing the plurality of encoded symbols by an amount that is a predetermined fraction of the transmitter clock period.
A system comprising:
- a medium independent interface to provide transmit data;
- a communication medium including a plurality of twisted pair cables;
- and
- a transmitter coupled to the medium independent interface and the communication medium to transmit the transmit data over the plurality of twisted pair cables, the transmitter comprising:
- symbol encoder operable to generate a plurality of encoded symbols within a transmitter clock period;
- and
- a symbol skewer operable to skew the plurality of encoded symbols by an amount that is a predetermined fraction of the transmitter clock period.
Dependencies are inferred from the claim text.