The AMBA VIP Release Notes are installed at:

• Synopsys AMBA VIP Release Notes (PDF)

The Synopsys VIP for DTI is a suite of advanced verification components and data objects based on SystemVerilog UVM-compliant technology. This on-line help contains information about the classes, functions, and member variables. It shows class hierarchy and contents and it provides links you can use to navigate to more details. Below is the summary of the components and the user interface of the Synopsys DTI VIP.

DTI VIP Components

• svt_dti_master_agent Defines an agent for the DTI Master component. The master agent encapsulates master sequencer, master driver, and port monitor. The master agent can be configured to operate in active mode and passive mode.
• svt_dti_slave_agent Defines an agent for the DTI Slave component. The slave agent encapsulates slave sequencer, slave driver, and port monitor. The slave agent can be configured to operate in active mode and passive mode. Slave memory is represented by class svt_mem . Slave memory is instantiated in slave agent. In passive mode, the slave agent keeps the memory updated based on the observed data on the bus. This enables the system-level checks in the passive mode. In active mode, the slave memory is updated by the slave sequence. Refer to slave sequence svt_dti_slave_base_sequence in file $DESIGNWARE_HOME/vip/svt/amba_svt/latest/dti_slave_agent_svt/sverilog/src/vcs/svt_dti_slave_sequence_collection.svp. A reference to the slave memory instantiated in the slave agent is provided in the slave sequence. Using the API of this slave memory, you can read or write into the slave memory through this base sequence, or sequence extended from this base sequence.
• svt_dti_system_env Defines a System ENV for the DTI SVT suite. The DTI System ENV encapsulates the master agents, slave agents, Interconnect Env, system monitor, system sequencer and the system configuration. The number of master and slave agents is configured based on the system configuration provided by the user. The user can specify whether Interconnect Env is required in the System Env, using the system configuration.

DTI VIP User Interface
Configuration Objects:
Configuration data objects convey the system level and port level testbench configuration. The configuration data objects contain built-in constraints, which come into effect when the configuration objects are randomized. If the configuration needs to be changed later, it can be done through reconfigure() method of the master, slave, interconnect or system components. The DTI VIP defines following configuration classes:

• svt_dti_system_configuration System configuration
• svt_dti_port_configuration Port configuration

Transaction Objects:
Transaction objects, which are extended from the uvm_transaction base class, define a unit of DTI protocol information that is passed across the bus. The attributes of transaction objects are public and are accessed directly for setting and getting values. Most transaction attributes can be randomized. The transaction object can represent the desired activity to be simulated on the bus, or the actual bus activity that was monitored. DTI VIP defines following transaction classes:

• svt_dti_transaction (DTI Base transaction)
• svt_dti_master_transaction (DTI Master transaction)
• svt_dti_slave_transaction (DTI Slave transaction)

Analysis port:
The port monitor in the Master & Slave agents provides an analysis port. At the end of the transaction, the port monitor within the Master & Slave agents provides the completed svt_dti_master_transaction & svt_dti_slave_transaction object respectively, from its analysis port.
The Port Monitor in the Interconnect Master Agent and Interconnect Slave agent also provides an analysis port. At the end of the transaction on the interconnect ports, the port monitor within the Interconnect Master Agent and Interconnect Slave agent provides the completed svt_dti_ic_master_transaction and svt_dti_ic_slave_transaction object respectively, from its analysis port.
The analysis port used by port monitor within Master agent, Slave agent, Interconnect Master Agent and Interconnect Slave agent is:

• svt_monitor :: item_observed_port

• svt_dti_port_monitor :: item_started_port

• svt_monitor :: item_observed_port

Callbacks:
Callbacks are an access mechanism that enable the insertion of user-defined code and allow access to objects for scoreboarding and functional coverage. Each master and slave component is associated with a callback class that contains a set of callback methods. DTI VIP provides following callbacks classes:

• svt_dti_port_monitor_callback (Port monitor callback class)

Interfaces and modports:
SystemVerilog models signal connections using interfaces and modports. Interfaces define the set of signals which make up a port connection. Modports define collection of signals for a given port, the direction of the signals, and the clock with respect to which these signals are driven and sampled. DTI VIP provides below interfaces:

• svt_dti_if (Top level interface, which contains an array of master & slave port sub-interfaces)
• svt_dti_master_if (sub-interface for master ports)
• svt_dti_slave_if (sub-interface for slave ports)

• svt_dti_slave_modport (Modport used to connect master VIP component to slave DUT port)
• svt_dti_master_modport (Modport used to connect slave VIP component to master DUT port)
• svt_dti_debug_modport (Modport used to access the debug port signals)

• svt_dti_port_monitor_def_cov_data_callback

• svt_dti_port_monitor_def_cov_callback

Protocol Checks:
For a complete list of protocol checks supported by the DTI VIP, please click on the "Protocol Checks" tab in this class reference documentation.

DTI sequence collection:
The DTI VIP provides a collection of DTI master & slave sequences. These sequences can be registered with the master & slave sequencers within the master & slave agents respectively, to generate different types of DTI scenarios.

For a complete list of Sequences supported by the DTI VIP, please click on the "Sequences" tab in this class reference documentation.