1692 - LatticeECP3: Can I use the clock tolerance compensation (CTC) function of LatticeECP3 family SERDES/PCS in 10BSER mode?

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• 4746 - LatticeECP3: How to check if the design uses the Clock Tolerance Circuit (CTC) inside the SerDes hard Physical Coding Sub-layer (PCS)?

  The PCS has an option in GUI to enable or disable the CTC block while generating the PCS IP through IP Express in Lattice Diamond. If the CTC block has been enabled in GUI, the design will use it.

• 344 - For SERDES/PCS-based Lattice devices, can I use the CTC FIFO in the hard PCS even if I connect the PCS to the SGMII/GbE PCS IP?

  The answer depends both on device family and data rate: In the case of the LatticeSC device, the user can only use the CTC in the SGMII/GbE PCS IP. In the case of the LatticeECP2M and LatticeECP3 devices, the use of the hard PCS CTC depends on the ...

• 5541 - LatticeECP5: Can the Clock Tolerance Compensation (CTC) can be modified in PCS IP?

  Description: The PCS IP fixed the CTC FIFO setting depending on the Protocol used. Customer can access to modify the code for it is not encrypted. Lattice strongly recommended customers not to modify the CTC as it is set to work as-is and modifying ...

• 1991 - SGMII and Gb Ethernet PCS IP Core: How many idle ordered sets will the IP's Clock Tolerance Compensation logic insert or delete during an inter-packet gap period?

  The Clock Tolerance Compensation (CTC) logic in the SGMII and Gb Ethernet PCS IP Core performs both idle ordered set insertion when the CTC FIFO low watemark is reached and idle ordered set deletion when the CTC FIFO high watemark is reached. CTC ...

• 2099 - LatticeECP3: Is it allowable to bypass the PCS & 8B10B encoding/decoding function and still use the CTC FIFO?

  The CTC input needs to be 8b10b decoded data (a K-control bit, and an 8-bit hexadecimal character). If 8b10b decoder is bypass, the data at the input to the CTC block will be 10-bit encoded 8b10b data. So, it cannot use the CTC functionality when the ...