Implements an APB bus master acting as the driver of an APB agent. More...
Inheritance diagram for apb_agent_pkg::apb_driver:
Collaboration diagram for apb_agent_pkg::apb_driver:
Public Member Functions | |
| uvm_component_utils (apb_driver) virtual apb_if APB | |
| Reference to the APB interface. More... | |
| int | sel_lookup (logic< 31:0 > address) |
| Looks up the address and returns PSEL line that should be activated. More... | |
| new (string name="apb_driver", uvm_component parent=null) | |
| Conventional UVM component constructor. More... | |
| task | run_phase (uvm_phase phase) |
| Forks off a forever loop in which the driver pulls transactions and drives them on the APB bus. More... | |
| void | build_phase (uvm_phase phase) |
| Merely obtains the driver configuration from the UVM Configuration DB. More... | |
Public Attributes | |
| apb_agent_config | m_cfg |
| Driver configuration. Normally this aliases with the parent agent configuration. More... | |
Detailed Description
Implements an APB bus master acting as the driver of an APB agent.
The driver receives transactions through a pull port, normally connected to the agent's sequencer. The transactions are translated into APB bus transactions.
This driver implementation supports only valid and properly framed bus transactions.
The driver supports multiple bus slaves. The number of slaves and their address map is controlled through an agent's configuration obtained from the UVM Configuration DB during the build phase.
- Todo:
- A more proper way to configure the driver is through a direct config object assignment, rather than through the UVM Config DB.
Definition at line 38 of file apb_agent_pkg.sv.
Member Function Documentation
◆ build_phase()
| void apb_driver::build_phase | ( | uvm_phase | phase | ) |
Merely obtains the driver configuration from the UVM Configuration DB.
Definition at line 127 of file apb_agent_pkg.sv.
◆ new()
| apb_driver::new | ( | string | name = "apb_driver", |
| uvm_component | parent = null |
||
| ) |
Conventional UVM component constructor.
Definition at line 81 of file apb_agent_pkg.sv.
◆ run_phase()
| task apb_driver::run_phase | ( | uvm_phase | phase | ) |
Forks off a forever loop in which the driver pulls transactions and drives them on the APB bus.
Definition at line 85 of file apb_agent_pkg.sv.
◆ sel_lookup()
| int apb_driver::sel_lookup | ( | logic< 31:0 > | address | ) |
Looks up the address and returns PSEL line that should be activated.
If the address is invalid, a non positive integer is returned to indicate an error.
Definition at line 133 of file apb_agent_pkg.sv.
◆ uvm_component_utils()
| apb_agent_pkg::apb_driver::uvm_component_utils | ( | apb_driver | ) |
Reference to the APB interface.
The reference is obtained from the driver's configuration instance (and hence somewhat duplicates the information contained therein).
Member Data Documentation
◆ m_cfg
| apb_agent_config apb_agent_pkg::apb_driver::m_cfg |
Driver configuration. Normally this aliases with the parent agent configuration.
Definition at line 53 of file apb_agent_pkg.sv.
The documentation for this class was generated from the following file: