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AR# 22245

LogiCORE SPI-4.2 (POS-PHY L4) v7.3 - Sink core shows duplicate data on the Sink FIFO interface

Description

Urgency: Hot  

 

General Description: 

When using the SPI-4.2 Core targeting Virtex-4 (v7.0, v7.1, v7.2, v7.3), I read duplicate data on the user interface.  

 

This issue is dependent on the burst size, data traffic pattern, and user clock frequency and phase relationship. This problem is more likely to occur when SnkFFClk is coming from a clock source other than a derivative of RDClkDiv_GP. Although this issue might not surface in functional simulation, it can occur in hardware and must be addressed by installing a patch.

Solution

This problem is fixed in the SPI4.2 v7.3 patch. 

 

For more information, see (Xilinx Answer 22238).

AR# 22245
Date Created 09/04/2007
Last Updated 05/19/2014
Status Archive
Type General Article