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    UVM Meeting 5 25-11-21

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    armando broncas
    UVM components are derived from the uvm_component base class and become part of the testbench hierarchy during simulation. The uvm_component base class contains virtual methods for each UVM phase that user-defined components can implement to participate in those phases. It also provides a configuration table to store configuration objects that components can access via the uvm_config_db using the static hierarchy as a path mechanism.

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    UVM Meeting 5 25-11-21

    Uploaded by

    armando broncas
    29 views3 pages
    UVM components are derived from the uvm_component base class and become part of the testbench hierarchy during simulation. The uvm_component base class contains virtual methods for each UVM phase that user-defined components can implement to participate in those phases. It also provides a configuration table to store configuration objects that components can access via the uvm_config_db using the static hierarchy as a path mechanism.

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    UVM_meeting_5_25-11-21

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    UVM components are derived from the uvm_component base class and become part of the testbench hierarchy during simulation. The uvm_component base class contains virtual methods for each UVM phase that user-defined components can implement to participate in those phases. It also provides a configuration table to store configuration objects that components can access via the uvm_config_db using the static hierarchy as a path mechanism.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    29 views3 pages

    UVM Meeting 5 25-11-21

    Uploaded by

    armando broncas
    UVM components are derived from the uvm_component base class and become part of the testbench hierarchy during simulation. The uvm_component base class contains virtual methods for each UVM phase that user-defined components can implement to participate in those phases. It also provides a configuration table to store configuration objects that components can access via the uvm_config_db using the static hierarchy as a path mechanism.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    of 3

    UVM – UVM components

    A UVM testbench is composed of components extended from the uvm_component base


    class. When a uvm_component derived class object is created, it becomes part of the
    testbench hierarchy which persist during all the simulation (static object).

    uvm_object
    Adds reporting infrastructure

    uvm_report_object uvm_transaction
    Adds static hierarchy, phase Adds sequencer
    and configuration support hooks

    uvm_component uvm_sequence_item
    Adds body
    method

    uvm_sequence
    UVM – UVM components
    The uvm_component base class template has a virtual method for each of the UVM
    phases and these are to be implemented by the user as required.
    A phase level virtual method that is not implemented results in the component
    effectively not participating in that phase.

    uvm_component class hierarchy


    code
    function void function void
    build_phase connect_phase

    task function void Dummy UVM testbench


    run_phase final_phase code
    UVM – UVM components
    Also embedded into the uvm_component base class is support for a configuration table
    to store configuration objects. When the uvm_config_db API is used, this static
    hierarchy is employed as part of the path mechanism to control which components may
    access a given configuration object.
    Lookup
    Lookup
    Monitor
    agent Lookup BFM
    Monitor uvm_config_db DUT
    Config Driver
    Initial begin BFM
    run_test(); //Starts uvm tb
    Sequencer Driver end
    hvl_top hdl_top

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