                Core name: Xilinx LogiCORE Adder/Subtracter
                Version: 11.0
                Release Date: October 19, 2011 


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This document contains the following sections:

1. Introduction
2. New Features
3. Supported Devices
4. Resolved Issues
5. Known Issues
6. Technical Support
7. Other Information
8. Core Release History
9. Legal Disclaimer

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1. INTRODUCTION

For installation instructions for this release, please go to:

   http://www.xilinx.com/ipcenter/coregen/ip_update_install_instructions.htm

For system requirements:

   http://www.xilinx.com/ipcenter/coregen/ip_update_system_requirements.htm

This file contains release notes for the Xilinx LogiCORE IP Adder/Subtracter v11.0
solution. For the latest core updates, see the product page at:

   http://www.xilinx.com/products/ipcenter/Adder_Subtracter.htm


2. NEW FEATURES

- ISE 13.3 software support
- ISE 13.2 software support
- Support for Artix-7 with ISE 13.2
- ISE 13.1 software support
- Support for Virtex-6Q and Spartan-6Q with ISE 12.1
- ISE 11.4 software support
- Support for Automotive Spartan-6 with ISE 11.4
- Support for Spartan-6 Low Power with ISE 11.4
- Support for Virtex-6 Low Power and Virtex-5Q with ISE 11.3
- Support for Virtex-6, Spartan-6, with ISE 11.1
- Support for XtremeDSP slice implementations
- Addition of borrow low generic to allow fabric and XtremeDSP slice functional equivalence
- Added "signal valid" to test bench to indicate when output may differ from behavioral model during pipeline flushing"


3. SUPPORTED DEVICES

The following device families are supported by the core for this release.

Zynq-7000*

Virtex-7
Virtex-7 XT (7vx485t)
Virtex-7 -2L

Virtex-6 XC CXT/LXT/SXT/HXT
Virtex-6 XQ LXT/SXT
Virtex-6 -1L XQ LXT/SXT
Virtex-6 -1L XC LXT/SXT

Kintex-7
Kintex-7 -2L

Artix-7*

Spartan-6 XC LX/LXT
Spartan-6 XA
Spartan-6 XQ LX/LXT
Spartan-6 -1L XQ LX
Spartan-6 -1L XC LX

Virtex-5 XC LX/LXT/SXT/TXT/FXT
Virtex-5 XQ LX/ LXT/SXT/FXT

Virtex-4 XC LX/SX/FX
Virtex-4 XQ LX/SX/FX
Virtex-4 XQR LX/SX/FX

Spartan-3 XC
Spartan-3 XA
Spartan-3A XC 3A / 3A DSP / 3AN DSP
Spartan-3A XA 3A / 3A DSP
Spartan-3E XC
Spartan-3E XA

*To access these devices in the ISE Design Suite, contact your Xilinx FAE.


4. RESOLVED ISSUES

- N/A


5. KNOWN ISSUES

The following are known issues for v11.0 of this core at time of release:

- None

The most recent information, including known issues, workarounds, and
resolutions for this version is provided in the IP Release Notes Guide
located at

   www.xilinx.com/support/documentation/user_guides/xtp025.pdf


6. TECHNICAL SUPPORT

To obtain technical support, create a WebCase at www.xilinx.com/support.
Questions are routed to a team with expertise using this product.

Xilinx provides technical support for use of this product when used
according to the guidelines described in the core documentation, and
cannot guarantee timing, functionality, or support of this product for
designs that do not follow specified guidelines.


7. OTHER INFORMATION

- None


8. CORE RELEASE HISTORY

Date        By            Version      Description
================================================================================
10/19/2011  Xilinx, Inc.  11.0         ISE 13.3 support
06/22/2011  Xilinx, Inc.  11.0         ISE 13.2 support, Artix-7 support
03/01/2011  Xilinx, Inc   11.0         ISE 13.1 support
04/19/2010  Xilinx, Inc.  11.0         ISE 12.1, Virtex-6Q and Spartan-6Q support
12/02/2009  Xilinx, Inc.  11.0         ISE 11.4 support, Spartan-6l and Automotive Spartan6 support
09/16/2009  Xilinx, Inc.  11.0         ISE 11.3 support, Virtex-6l support
04/24/2009  Xilinx, Inc.  11.0         ISE 11.1 support
09/19/2008  Xilinx, Inc.  10.0         ISE 10.1.3 support
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9. LEGAL DISCLAIMER

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WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
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