In the program block, variables can only be assigned using blocking assignments. Using non-blocking assignments within the program shall be an error; difference between module and program. In the examples below, find the difference between writing testbench with module block and program block.

A program block can not instantiate a module block. On the opposite side, a module block can instantiate another module or program block. A program block can not have an interface, user-defined primitives (UDP), always block or nested program.

Learn about SystemVerilog program block, difference vs module with simple easy to understand examples - SystemVerilog Tutorial for Beginners

Aug 6, 2018 · module block will sample at active region and executes in the same region.where as program block will sample in active region and executes in reactive region.That's why program block is mainly used in the testbench and module is design.

Jul 5, 2015 · what is exact difference between program and module. when i compiled below program. program main; module ma; endmodule. endprogram. ERROR:: a module can only be declared at the compilation unit top level, or within a module [SystemVerilog]. And have seen that program cannot contain always block.

Similar to a module, a program block may have zero or more inputs, outputs and inout ports. A program block can contain zero or more initial blocks, cont assignments, generate and specparam statements, concurrent assertions and timunit declarations.

Mar 30, 2020 · 三、Difference between module and program In the examples below, find the difference between writing testbench with module block and program block.In example-1 writing testbench with module block, because of race condition testbench gets the …

Sep 5, 2009 · Program blocks can't contain UDP, modules, or other instance of program block inside them. Modules don't have any such restrictions. Inside a program block, program variable can only be assigned using blocking assignment and non-program variables can only be assigned using non-blocking assignments.

Apr 16, 2016 · What is the difference between program block and module? 1. Program blocks can't have always block inside them, modules can have. 2. Program blocks can't contain UDP, modules, or other instance of program block inside them. …

While similar in structure to the traditional module, the program block serves a specific purpose and has distinct characteristics. This article explores the program block, its features, and how it differs from the module block, with examples to illustrate its usage.