difference between module and class based testbench

It can be used for inter-module communication or inter-process communication within a module. In other words, a channel is said to implement an interface if it defines all of the methods declared in that interface.Ĭhannels serve to encapsulate the mechanism through which processes communicate and hence to model the communication aspects or protocols of a system. These virtual functions are implemented by Channel. Interfaces are abstract classes that declare a set of pure virtual functions. Dynamic sensitivity is created during the execution of the process’s associated function. Static sensitivity is created at the time the process instance is created. Both static and dynamic sensitivity are provided. The sensitivity of a process identifies the set of events that would cause the scheduler to execute that process should those events be notified. They can be created statically during elaboration or dynamically during simulation.

Processes are used to perform computations and hence to model the functionality of a system. Processes are C++ functions registered with kernel. The kernel is the part of SystemC class library implementation that provides the core functionality for elaboration and the scheduler. The execution of SystemC application consists of elaboration and simulation.ĭuring elaboration, the module hierarchy is created, followed by simulation, during which the scheduler runs.

Events are notified at specific points in simulated time. Processes are executed in response to the notification of events. Concepts SchedulerĪt the core of SystemC is a simulation engine containing a process scheduler. The module is the basic buidling block of a system. Loosely speaking, SystemC allows a user to write a set of C++ functions (processes) that are executed under control of a scheduler in an order that mimics the pasasge of simulated time and that are synchronized and communicate in a way that is useful for modeling electronic systems containing hardware and embedded software. This page has been visited times Overview

Difference between module and class based testbench