Sunday 30 August 2015

Design Netlist

Physical design is based on a netlist which is the end result of the Synthesis process. Synthesis converts the RTL design usually coded in VHDL or Verilog HDL to gate-level descriptions which the next set of tools can read/understand. This netlist contains information on the cells used, their interconnections, area used, and other details. Typical synthesis tools are:
  • Cadence RTL Compiler/Build Gates/Physically Knowledgeable Synthesis (PKS)
  • Synopsys Design Compiler

During the synthesis process, constraints are applied to ensure that the design meets the required functionality and speed (specifications). Only after the netlist is verified for functionality and timing it is sent for the physical design flow.

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