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AR# 56613

XPE 2013.1 - GTX's power consumption for LPM and DFE

Description

In XPE, if GTX configuration is changed from DFE to LPM mode, MGTAVTT increases power consumption for 7 series devices.

Why does this occur?


Solution

The is because GTX CTLE in LPM mode is auto-adaptive, while in DFE mode it is manual, resulting in an increase in power consumption.

Also, the adaption circuitry (LPM) is powered by AVTT, but DFE is powered by AVCC.
AR# 56613
Date Created 06/27/2013
Last Updated 03/10/2015
Status Active
Type General Article
Devices
  • Kintex-7
  • Kintex-7Q