AR# 42927

Virtex-6 FPGA GTH Transceiver - BUFFER_CONFIG_LANEx should be set to manual adjustment mode

描述

The BUFFER_CONFIG_LANEx attributesfor Virtex-6 GTH transceivers are currently set to auto adjustment mode by default in Virtex-6 FPGA GTH Transceiver Wizard v1.8. Occasionally, setting this attribute to auto mode can cause data errors in the link.

解决方案

When using v1.8 of the Virtex-6 FPGA GTH Transceiver Wizard, BUFFER_CONFIG_LANEx[15:0] should manually be set to manual adjustment mode based on the TX/RX_FABRIC_WIDTH settings (as documented in Table 3-4 of the Virtex-6 FPGA GTH Transceivers User Guide (UG371)).

NOTE: Somevalues for RX_BUFFER_CONFIG[3:0]in table 3-4 of the user guide v2.2 are not correct. The correct values, as marked in the table in this Answer Record should be used. This is to be updated in a future revision of theVirtex-6 FPGA GTH Transceivers User Guide (UG371).

This has been fixedinv1.9of the Virtex-6 FPGA GTH Transceiver Wizard where this is setto manual mode. Please keep in mind that v1.9 of the wizardonly supports Production Silicon. For the updated wizard with this fix that supports ES Silicon, theVirtex-6 FPGA GTH Transceiver Wizard v1.7 Rev2should be used.

链接问答记录

相关答复记录

Answer Number 问答标题 问题版本 已解决问题的版本
38596 Virtex-6 FPGA GTH Transceiver - Known Issues and Answer Records List N/A N/A
AR# 42927
日期 12/15/2012
状态 Archive
Type 综合文章
器件
IP