AR# 38571

Virtex-6 GTH Transceiver - Manually setting the tap values for the DFE

This Answer Record contains the bit mappings for the DFE taps in the Virtex-6 GTH Transceiver.

The DFE in the Virtex-6 GTH Transceiver has three taps.

The table below contains the bit mappings for these taps; the bits that enable overriding the auto-calibration, and the equalization gain settings.

NOTE: Xilinx is only providing these bit locations for users who are interested in setting the feedback taps themselves.

Performance while manually modifying these bits depends on the use model.

For supported DFE use cases, see the Virtex-6 GTH Transceiver User's Guide (UG371).

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Answer Number	Answer Title	Version Found	Version Resolved
38596	Virtex-6 FPGA GTH Transceiver - Known Issues and Answer Records List	N/A	N/A

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