Hardware Description Languages and Digital Design

Front

What is a Hardware Description Language (HDL)?

Back

A set of notations used for modeling the logical function of digital circuits and systems.

Front

What is the purpose of HDLs in digital design?

Back

To describe circuits using words and symbols, allowing for the development of software that converts textual descriptions into configuration data for Programmable Logic Devices (PLDs).

Front

What is an FPGA?

Back

A Field-programmable gate array is an integrated circuit designed to be configured by a customer or designer after manufacturing.

Front

What are the main levels of abstraction in HDL design?

Back

System Level, Algorithmic Level, Register Transfer Level, Gate Level, Circuit Level, and Material Level.

Front

What is the Digital Design Flow?

Back

The process includes Specifications, Functional Design, Synthesis, Technology Mapping, Place and Route, Verification, and Fabrication.

Front

What is the difference between combinational and sequential circuits?

Back

Combinational circuits' outputs depend only on current inputs, while sequential circuits' outputs depend on current inputs and the sequence of previous inputs.

Front

What is a multiplexer?

Back

A circuit that selects one of many values based on the selection input.

Front

What is a latch in digital electronics?

Back

A basic storage element that operates with signal levels and is controlled by clock transitions.

Front

What is the difference between blocking and nonblocking assignments in Verilog?

Back

Blocking assignments are executed sequentially and block the next statement until the current one is executed, while nonblocking assignments execute in parallel without blocking.

Front

What is a finite-state machine (FSM)?

Back

A circuit that contains a predefined number of states and transitions between states based on triggering events.