What is Hardware description language (HDL)?

Hardware description language (HDL) in the explanations

• An HDL looks like a program, but logic synthesis turns what is written into gates and flip-flops.

  What is a major difference between a description written in…

• A testbench is HDL code that instantiates the design under test (DUT), generates clocks, resets and input signals, and observes outputs.

  Which describes a testbench used in HDL verification?

• A lint tool statically checks HDL code against rules and flags constructs that are legal but prone to problems, such as assignments between different widths, incomplete sensitivity lists, inferred latches, mixed blocking and nonblocking assignments and clocking mistakes.

  What is the role of a lint tool in HDL verification?

Questions that mention Hardware description language (HDL) (11)

1. What is a major difference between a description written in an HDL such as Verilog and a software program in a language such as C?
2. What is the basic structure of a state machine written in an HDL?
3. Which statement about tri-state descriptions that output Z (high impedance) in an HDL is generally correct?
4. Which describes a testbench used in HDL verification?
5. What is the role of a lint tool in HDL verification?
6. How many rows does the truth table of a 3-input logic circuit have?
7. Which is the correct order of a typical digital LSI design flow?
8. Which hardware description languages are mainly used in RTL design?
9. What is the set of design data, including design rules, device models and cell libraries, that a foundry provides to designers called?
10. Why does the code above create a latch, and what is the fix?
11. When the code above, which counts the 1s in 8-bit d, is synthesized, what kind of circuit results?

Related terms

Verilog Logic synthesis RTL (register-transfer level) Flip-flop Testbench Lint tool Truth table Netlist Tape-out SystemVerilog