Before You Begin

Before beginning a Xilinx design using the Synopsys tools, read the “Getting Started” chapter and ensure the following.

• Verify the installation of XSI and Xilinx software on your system.
  
  
• Modify the Xilinx-provided default Synopsys startup file, if applicable.
  
  
• Verify that you use Synopsys V3.4b or later.
  
  

Xilinx does not support the following library cells in the Spartan design flow because they do not exist in the Spartan architecture.

• RAM16X1
  
  
• RAM32X1
  
  
• DECODEx
  
  
• WANDx
  
  
• WOR2AND
  
  
• MD0
  
  
• MD1
  
  
• MD2