Chapter 5 Design Constraints This chapter describes constraints, options, and attributes supported for use with XST. This chapter contains the following sections. "Introduction" "Setting Global Constraints and Options" "VHDL Attribute Syntax" "Verilog Meta Comment Syntax" "Verilog-2001 Attributes" "XST Constraint File (XCF)" "General Constraints" "HDL Constraints" "FPGA Constraints (non-timing)" "CPLD Constraints (non-timing)" "Timing Constraints" "Constraints Summary" "Implementation Constraints" "Third Party Constraints" "Constraints Precedence"
This chapter describes constraints, options, and attributes supported for use with XST.
This chapter contains the following sections.
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