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AR# 47492

7 Series GTH/GTP - BUFFER BYPASS Default Attribute

Description

GTH/GTP TX and RX buffer bypass attributes shown below should be used.

Solution

Designs using TX and/or RX buffer bypass need to have these attributes updated for simulation as well as hardware.

TXPH_CFG 16'h0780
TXPHDLY_CFG 24'h084020
TXDLY_CFG 16'h001F
TXDLY_LCFG 9'h030
TXDLY_TAP_CFG 16'h0000
RXPH_CFG 24'hC00002
RXPHDLY_CFG 24'h084020
RXDLY_CFG 16'h001F
RXDLY_LCFG 9'h030
RXDLY_TAP_CFG 16'h0000

These attributes are updated for the GTP transceiver in version 2.3 of the transceiver wizard. For GTH all the attributes except RXPH_CFG are updated in version 2.2 of the transceiverwizard. For GTHtransceiversRXPH_CFG will be updated in version 2.4 of the wizard.

Linked Answer Records

Master Answer Records

Answer Number Answer Title Version Found Version Resolved
47852 7 Series FPGAs GTP Transceivers - Known Issues and Answer Record List N/A N/A
AR# 47492
Date Created 05/01/2012
Last Updated 03/06/2013
Status Active
Type General Article
Devices
  • Artix-7
  • Virtex-7 HT