Verilog Design - 2023.1 English

Vivado Design Suite User Guide: Synthesis (UG901)

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2023.1 English

Complex circuits are often designed using a top-down methodology.

  • Varying specification levels are required at each stage of the design process. For example, at the architectural level, a specification can correspond to a block diagram or an Algorithmic State Machine (ASM) chart.
  • A block or ASM stage corresponds to a register transfer block in which the connections are N-bit wires, such as:
    • Register
    • Adder
    • Counter
    • Multiplexer
    • Interconnect logic
    • Finite State Machine (FSM)
  • Verilog allows the expression of notations such as ASM charts and circuit diagrams in a computer language.