What is Genvar in Verilog?
The genvar keyword is a new data type, which stores positive integer values. It differs from other Verilog variables in that it can be assigned values and can be changed during compile or elaboration time. The index variable used in a generate loop must be declared as a genvar.
What is Verilog generate?
A generate block allows to multiply module instances or perform conditional instantiation of any module. It provides the ability for the design to be built based on Verilog parameters.
Can we use generate inside always?
We can only use the generate statement in concurrent verilog code blocks. This means we can’t include it within always blocks or initial blocks.
What are generate blocks?
GenerateBlocks is a small collection of lightweight WordPress blocks that can accomplish nearly anything.
What is a parameter in Verilog?
A parameter is an attribute of a Verilog HDL module that can be altered for each instantiation of the module. These attributes represent constants, and are often used to define variable width and delay value.
Are VHDL for loops synthesizable?
For loops are one of the most misunderstood parts of any HDL code. For loops can be used in both synthesizable and non-synthesizable code. However for loops perform differently in a software language like C than they do in VHDL. You must clearly understand how for loops work before using them!
Is Synthesizable real?
The integer type is synthesizable, but real is not synthesizable.
What is a block in VHDL?
Without a guard condition a block is a grouping together of concurrent statements within an architecture. It may have local signals, constants etc. declared. Blocks may contain further blocks, implying a form of hierarchy within a single architecture.
What is Defparam in Verilog?
The defparam statement can modify parameters only at the compilation time. Parameter values can be modified using # delay specification with module instantiation. In Verilog, there are two methods to override a module parameter value during a module instantiation. By using the defparam keyword.
What is Ifndef in UVM?
The keyword `ifndef simply tells the compiler to include the piece of code until the next `else or `endif if the given macro called FLAG is not defined using a `define directive.