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AR# 37298

XAPP1151 - CAM v1.1, Release Notes and Known Issues


This Release Notes and Known Issues Answer Record is for the Parameterizable Content-Addressable Memory(CAM v1.1) Application Note(XAPP1151) released on March 1, 2011, and contains the following information:

  • General Information
  • New Features
  • Bug Fixes
  • Known Issues

XAPP1151 is a source code replacement for the "LogiCORE IP CAM v6.1 core" from the CORE Generator tool.


General Information

This Application Note describes the implementation of a Content Addressable Memory, which matches the content of the memory to a data input and provides the matching address for that data as the output. The Reference Design is based on the ISE CORE Generator CAM v6.1 LogiCORE IP netlist core. Supported device families for this reference design are: Spartan-3, Spartan-3E, Spartan-3 Automotive, Spartan-3E Automotive, Spartan-3A, Spartan-3A DSP, Spartan-6, Virtex-4, Virtex-5, and Virtex-6/-6L.Support for later architectures might require modification to the source code; for more information, see the XAPP1151 readme file.

New Features

  • Virtex-6 device support
  • Spartan-6 device support

Resolved Issues

  • N/A

Known Issues

(Xilinx Answer 40923) XAPP1151 - CAM v1.1 - XST might run out of memory on very large CAM configurations
(Xilinx Answer 40924) XAPP1151 - CAM v1.1 - Infrequent fatal error in Place

Revision History

03/01/2011 - Initial Release

AR# 37298
Date Created 03/03/2011
Last Updated 05/19/2012
Status Active
Type Release Notes
  • ISE Design Suite - 13.1
  • Content Addressable Memory (CAM)