What is primitives in Verilog? | applied electronics engineering


What is primitives in Verilog?

By Applied Electronics - Wednesday, August 24, 2016 No Comments
Primitives in verilog are build in gates and switches identified by preserved verilog keywords. They are the most basic components that you can use modules or larger digital components on FPGA. Verilog has a collection of twenty-six constructed-in primitives. These developed-in primitives are listed in table below.

The primitive and,  nand, or, nor, xor, and xnor represent easy logic capabilities with one or more  inputs and one output. Buffers, inverters and three state buffers/inverters are represented through buf, not, bufif1, bufif0, notif1,  and notif0. The pullup and pulldown primitives have a single output and no inputs, and are  used to pull up or pull down a net. MOS-degree unidirectional and bidirectional  switches are represented with the aid of the remaining primitives.

Observe that there  are  no  built-in muxes  or  flip-flops.  This is on the grounds that there  are  too many different forms of these to comprise them all, so Verilog provide user-defined primitives to model these. There are ways to construct user-defined primitives.


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