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AR# 34673

Virtex-6 GTX: Serial Transceiver power supply sequencing recommendations

Description

The Virtex-6 FPGA GTX, GTH and Spartan-6 GTP transceivers have some supplies which need to be provided specific voltages.

This is outlined in the specific data sheets, DS152 for Virtex-6 and DS162 for Spartan-6.

This Answer Record discusses the order in which these supplies need to be powered up.

Solution


Virtex-6 GTX:
Xilinx does not have an official sequencing recommendation for supplying power to GTX transceivers.

The only requirements are:
  • Prior to configuration, each supply must meet the voltage requirements outlined in the Virtex-6 FPGA Data Sheet (these supplies include MGTAVCC, MGTAVTT, and MGTAVTTRCAL),
  • The reference resistor pin MGTRREF must be connected properly (as shown in the Virtex-6 FPGA GTX User Guide). 

Virtex-6 GTH:
Recommendations for the power sequencing of the GTH Transceiver can be found in the Virtex-6 FPGA data sheet (each supply must meet the requirements prior to configuration):
http://www.xilinx.com/support/documentation/data_sheets/ds152.pdf

Spartan-6 GTP:

Xilinx does not have an official sequencing recommendation for supplying power to GTP transceivers.
The only requirements are:
  • Prior to configuration, each supply must meet the voltage requirements outlined in the  Spartan-6 FPGA Data Sheet (these supplies include MGTAVCC, MGTAVCCPLL, MGTAVTT, and MGTAVTTRCAL)
  • The reference resistor pin MGTRREF must be connected properly (as shown in the Spartan-6 FPGA GTP User Guide).


AR# 34673
Date Created 03/09/2010
Last Updated 09/17/2014
Status Active
Type General Article
Devices
  • Virtex-6 LXT
  • Virtex-6 CXT
  • Virtex-6 HXT
  • More
  • Virtex-6 SXT
  • Spartan-6 LXT
  • Less