                    Core name: Xilinx LogiCORE Adder/Subtracter
                    Version: 11.0
                    Release Date: June 22, 2011

    ================================================================================

    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

    ================================================================================

    1. INTRODUCTION

    For installation instructions for this release, please go to:

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

    For system requirements:

       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:

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

    2. NEW FEATURES

    - 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
    ================================================================================
    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
    ================================================================================

    9. LEGAL DISCLAIMER

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