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  3. AR# 45602: Kintex-7 and Virtex-7 FPGA GTX Transceiver - Attribute Updates, Issues, and Work-around for Initial Engineering Sample (ES) Silicon for Aurora Cores

AR# 45602

Kintex-7 and Virtex-7 FPGA GTX Transceiver - Attribute Updates, Issues, and Work-around for Initial Engineering Sample (ES) Silicon for Aurora Cores

Description

This answer record contains information on issues, work-arounds, and attribute updates for Aurora cores (Aurora 8B10B v7.1 / Aurora 64B66B V6.1) that use Kintex-7 and Virtex-7 FPGA GTX Transceiver Initial Engineering Sample (ES) Silicon (CES9937).

Solution

GTX Transceiver attribute updates are required for ES Silicon to work in hardware.

Please refer to the master (Xilinx Answer 43244) for the latest updates.

Below are the hardware configurations validated in Kintex-7 FPGA KC724 board-to-board setup:

Aurora 8B10B v7.1 core:

Validated core configuration:

Aurora lanes : 4
Line rate : 4.0 Gbps
GT reference clock : 100.0 MHz
Lane Width : 2
Dataflow : Duplex

The GTX Transceiver settings file (aurora_8b10b_v7_1_gt.v) is attached for reference.

Aurora 64B66B v6.1 core:

Validated core configuration:

Aurora lanes : 1
Line rate : 3.125 Gbps
GT reference clock : 156.25 MHz
Lane Width : 8
Dataflow : Duplex

The GTX Transceiver settings file (aurora_64b66b_v6_1_gt.v) is attached for reference.


Note:

  • TX/RX Buffers are enabled in both Aurora Cores
  • Validated design uses CPLL. Please refer to the master AR for QPLL settings (applicable only for Aurora 64B66B core)
  • QPLL not supported in the Aurora 8B10B core
  • Validation has been done in Kintex-7 KC724 board-to-board setup but the settings provided can be used with Virtex-7 devices also.

Attachments

Associated Attachments

Name File Size File Type
aurora_8b10b_v7_1_gt.v 38 KB V
aurora_64b66b_v6_1_gt.v 37 KB V

Linked Answer Records

Master Answer Records

Answer Number Answer Title Version Found Version Resolved
43390 Kintex-7 FPGA KC724 Characterization Kit - Known Issues and Release Notes Master Answer Record N/A N/A
52383 Virtex-7 FPGA VC7203 Characterization Kit - Known Issues and Release Notes Master Answer Record N/A N/A
54015 Virtex-7 FPGA VC7222 GTH and GTZ Transceiver Characterization Board - Known Issues and Release Notes Master Answer Record N/A N/A
AR# 45602
Date 01/28/2015
Status Active
Type General Article
Devices
  • Kintex-7
  • Virtex-7
IP
  • Aurora 8B/10B
  • Aurora 64B/66B
Boards & Kits
  • Kintex-7 FPGA KC724 Characterization Kit