RTL Design
In RTL (Register-Transfer Level) design, we use hardware description languages (HDLs) to describe the behavior and functionality of digital circuits at the register-transfer level. Two of the most commonly used languages for RTL design are:
Verilog
You’ll find that designers widely use Verilog, a popular hardware description language in the industry, for RTL design. It allows us to specify the behavior of a digital circuit using modules, registers, and combinational logic. Verilog serves various design stages, including RTL modeling, verification, and synthesis.
VHDL (VHSIC Hardware Description Language)
VHDL is another commonly used hardware description language for RTL design. Initially developed for the U.S. Department of Defense, it finds extensive use in industries like aerospace, military, and automotive. We use VHDL for similar purposes as Verilog, such as RTL modeling and verification.
Both Verilog and VHDL offer powerful constructs to describe the behavior and structure of digital circuits at the register-transfer level. Designers often choose one of these languages based on their personal preferences, project requirements, or the design standards set by the company or organization. Some projects or teams may even use a combination of both languages, depending on the context and specific design needs.