What is the purpose of using a virtual interface in SV?

Question

Anonymous · Accepted Answer

An interface encompasses all the signals utilized in the design. A virtual
interface acts as a bridge between the SystemVerilog design and the testbench,
connecting the static design world with the dynamic testbench environment. Since
the DUT remains static and persists throughout the entire simulation, while
testbench components are dynamically created and destroyed, virtual interfaces
are employed to establish and maintain this connection seamlessly.

Anonymous · Answer

RTL and TB are connected through interface signals. Interface is nothing but
bundle of signals. While RTL is module based (i.e. static) and will ultimately
be made into hardware, testbench on the other side is class based and therefore
dynamic in nature. Virtual interface basically gives a pointer of actual
interface to testbench components.

Anonymous · Answer

Interface consists of all the signals used in the design.By virtual interfaces
we are connecting DUT and the testbenches. It is used to connect static world
with the virtual. Since Dut is a static which stays intact with the entire
simulation where is testbench components created and destroyed so we are using
virtual interfaces to connect.

Anonymous · Answer

to bundle the port of the hardware module (tb module), and toprovide convenient
connection for each class component, no need to everytime mannully bundle with
port in verilog

What is the purpose of using a virtual interface in SV?

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