This page provides an overview clarifying the main LogiCORE™ IP license agreement types and their relationship to electronic license keys.

Overview

When the term, "Xilinx LogiCORE IP License" is used, it refers to one of the following:

• LogiCORE License Agreements
• Electronic License Keys

The LogiCORE legal license agreements are documents which state the legal terms and conditions for both parties beyond what is stated in the ISE and EDK software licenses. All Xilinx IP and LogiCOREs are covered by a legal license agreement. This may be in the form of signed paper documents, or some type of web-based "click license".

The electronic license keys are FLEXlm license key files which control what you can do with fee-based LogiCOREs from a Xilinx software tool environment standpoint. The electronic license key is validated by the Xilinx software and enables you to actually generate the core and use it to the extent allowed by your specific license. As an example, the electronic license key may allow you to generate the core, but may not allow you to create bitstreams for designs containing the core.

Most of the less complex cores included with the ISE CORE Generator software or the Xilinx Embedded Development Kit (EDK) are provided at no additional charge. Such cores are covered by the ISE End User license (ISE "EULA") and do not require installation of a license key.

Click on the links below for more details:

• Evaluation Licenses
• Licenses for Fee-based Cores