Line-rates up to 8.5 Gb/s
If both ends of the link are 7 series FPGAs GTH transceivers, the link margin degradation could be up to 0.1 UI.
Line-rates above 8.5 Gb/s
If both ends of the link are 7 series FPGAs GTH transceivers, the link margin degradation could be up to 0.2 UI.
Supported Use Modes
For GTH transceiver line rates above 8.5 Gb/s and up to 10.3125 Gb/s, the maximum supported channel loss at Nyquist frequency is 25 dB when using the latest DFE attribute settings (PMA_RSV2, RX_BIAS_CFG, RXDFEXYDEN) in (Xilinx Answer 47128). Otherwise, the maximum supported channel loss is 20 dB.
For GTH transceiver line rates above 10.3125 Gb/s and up to 11.3 Gb/s, the maximum supported channel loss at Nyquist frequency is 20 dB.
Answer Number | Answer Title | Version Found | Version Resolved |
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47128 | Design Advisory for the Virtex-7 FPGA GTH Transceiver - Attribute Updates, Issues, and Work-arounds for Initial Engineering Sample (ES) Silicon | N/A | N/A |
AR# 50063 | |
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Date | 07/15/2013 |
Status | Active |
Type | General Article |
Devices |