Method of multiple lane distribution (MLD) deskew
View Patent ↗The present invention discloses a method of detecting and correcting skew across a plurality of transmitting lanes. Through the use of an N framer system, including a frame start signal and a frame synchronization signal, skew can be detected and corrected by writing data from a plurality of framers into offsetting bit locations of a plurality of buffers. The present invention also provides a method of transmitting data in a multiple lane distribution (MLD) transmission system.
1. A system comprising:
control circuitry for:
receiving data from a plurality of parallel bit streams;
identifying a respective lane associated with each of a plurality of bits of data included in the plurality of parallel bit streams; and
writing the received data to a buffer in a serial sequence based on the respective lane associated with each of the plurality of bits of data.
2. The system of claim 1 , further comprising control circuitry for:
identifying the respective lane associated with each of the plurality of bits of data based on a deskewing parameter.
3. The system of claim 2 , wherein the deskewing parameter comprises a frame start signal.
4. The system of claim 2 , wherein the deskewing parameter comprises a frame synchronization signal.
5. The system of claim 2 , further comprising control circuitry for:
identifying the deskewing parameter by identifying a framing pattern present in at least two of the plurality of parallel bit streams; and
deriving the deskewing parameter from the framing pattern.
6. The system of claim 1 , further comprising control circuitry for:
frequency locking each bit stream in the plurality of parallel bit streams with a corresponding sub-framing circuitry in a plurality of sub-framing circuitries.
7. A method comprising:
receiving data from a plurality of parallel bit streams;
identifying a respective lane associated with each of a plurality of bits of data included in the plurality of parallel bit streams; and
writing the received data to a buffer in a serial sequence based on the respective lane associated with each of the plurality of bits of data.
8. The method of claim 7 , further comprising:
identifying the respective lane associated with each of the plurality of bits of data based on a deskewing parameter.
9. The method of claim 8 , wherein the deskewing parameter comprises a frame start signal.
10. The method of claim 8 , wherein the deskewing parameter comprises a frame synchronization signal.
11. The method of claim 8 , further comprising:
identifying the deskewing parameter by identifying a framing pattern present in at least two of the plurality of parallel bit streams; and
deriving the deskewing parameter from the framing pattern.
12. The method of claim 7 , further comprising:
frequency locking each bit stream in the plurality of parallel bit streams with a corresponding sub-framing circuitry in a plurality of sub-framing circuitries.