Visible to Intel only — GUID: nik1412471913227
Ixiasoft
1. Introduction to Avalon Verification IP Suite
2. Clock Source BFM
3. Reset Source BFM
4. Avalon Interrupt Source and Interrupt Sink BFMs
5. Avalon-MM Master BFM
6. Avalon-MM Slave BFM
7. Avalon-MM Monitor
8. Avalon-ST Source BFM
9. Avalon-ST Sink BFM
10. Avalon-ST Monitor
11. Avalon Streaming Credit Source BFM
12. Avalon Streaming Credit Sink BFM
13. Conduit BFM
14. Tri-State Conduit BFM
15. External Memory BFM
16. Nios II Custom Instruction Master BFM
17. Nios II Custom Instruction Slave BFM
18. Avalon-ST Verilog HDL Testbench
19. Avalon-MM Verilog HDL and VHDL Testbenches
20. Document Revision History
5.4.1. event_all_transactions_complete()
5.4.2. event_command_issued()
5.4.3. event_max_command_queue_size()
5.4.4. event_min_command_queue_size()
5.4.5. event_read_response_complete()
5.4.6. event_response_complete()
5.4.7. event_write_response_complete()
5.4.8. get_command_issued_queue_size()
5.4.9. get_command_pending_queue_size()
5.4.10. get_read_response_queue_size()
5.4.11. get_response_address()
5.4.12. get_response_byte_enable()
5.4.13. get_response_burst_size()
5.4.14. get_response_data()
5.4.15. get_response_latency()
5.4.16. get_response_queue_size()
5.4.17. get_response_read_id()
5.4.18. get_response_read_response()
5.4.19. get_response_request()
5.4.20. get_response_wait_time()
5.4.21. get_response_write_id()
5.4.22. get_write_response_status()
5.4.23. get_write_response_queue_size()
5.4.24. get_version()
5.4.25. init()
5.4.26. pop_response()
5.4.27. push_command()
5.4.28. set_clken()
5.4.29. set_command_address()
5.4.30. set_command_arbiterlock()
5.4.31. set_command_byte_enable()
5.4.32. set_command_burst_count()
5.4.33. set_command_burst_size()
5.4.34. set_command_data()
5.4.35. set_command_debugaccess()
5.4.36. set_command_idle()
5.4.37. set_command_init_latency()
5.4.38. set_command_lock()
5.4.39. set_command_request()
5.4.40. set_command_timeout()
5.4.41. set_command_transaction_id()
5.4.42. set_command_write_response_request()
5.4.43. set_max_command_queue_size()
5.4.44. set_min_command_queue_size()
5.4.45. set_response_timeout()
5.4.46. signal_all_transactions_complete
5.4.47. signal_command_issued
5.4.48. signal_fatal_error
5.4.49. signal_max_command_queue_size
5.4.50. signal_min_command_queue_size
5.4.51. signal_read_response_complete
5.4.52. signal_response_complete
5.4.53. signal_write_response_complete
6.4.1. event_command_received()
6.4.2. event_response_issued()
6.4.3. event_max_response_queue_size()
6.4.4. event_min_response_queue_size()
6.4.5. get_clken()
6.4.6. get_command_address()
6.4.7. get_command_arbiterlock()
6.4.8. get_command_burst_count()
6.4.9. get_command_burst_cycle()
6.4.10. get_command_byte_enable()
6.4.11. get_command_data()
6.4.12. get_command_debugaccess()
6.4.13. get_command_queue_size()
6.4.14. get_command_lock()
6.4.15. get_command_request()
6.4.16. get_command_transaction_id()
6.4.17. get_command_write_response_request()
6.4.18. get_pending_read_latency_cycle()
6.4.19. get_pending_write_latency_cycle()
6.4.20. get_response_queue_size()
6.4.21. vget_slave_bfm_status
6.4.22. get_version()
6.4.23. init()
6.4.24. pop_command()
6.4.25. push_response()
6.4.26. set_command_transaction_mode()
6.4.27. set_interface_wait_time()
6.4.28. vset_max_response_queue_size()
6.4.29. set_min_response_queue_size()
6.4.30. set_read_response_id()
6.4.31. set_read_response_status()
6.4.32. set_response_burst_size()
6.4.33. set_response_data()
6.4.34. set_response_latency()
6.4.35. set_response_request()
6.4.36. set_response_timeout()
6.4.37. set_write_response_id()
6.4.38. set_write_response_status()
6.4.39. signal_command_received()
6.4.40. signal_error_exceed_max_pending_reads
6.4.41. signal_max_response_queue_size
6.4.42. signal_min_command_queue_size
6.4.43. signal_fatal_error
6.4.44. signal_response_issued
7.2.1. set_enable_a_address_align_with_data_width()
7.2.2. set_enable_a_beginbursttransfer_exist()
7.2.3. set_enable_a_beginbursttransfer_legal()
7.2.4. set_enable_a_beginbursttransfer_single_cycle()
7.2.5. set_enable_a_begintransfer_exist()
7.2.6. set_enable_a_begintransfer_legal()
7.2.7. set_enable_a_begintransfer_single_cycle()
7.2.8. set_enable_a_burst_legal()
7.2.9. set_enable_a_byteenable_legal()
7.2.10. set_enable_a_constant_during_burst()
7.2.11. set_enable_a_constant_during_clk_disabled()
7.2.12. set_enable_a_constant_during_waitrequest()
7.2.13. set_enable_a_exclusive_read_write()
7.2.14. set_enable_a_half_cycle_reset_legal()
7.2.15. set_enable_a_less_than_burstcount_max_size()
7.2.16. set_enable_a_less_than_maximumpendingreadtransactions()
7.2.17. set_enable_a_no_readdatavalid_during_reset()
7.2.18. set_enable_a_no_read_during_reset()
7.2.19. set_enable_a_no_write_during_reset()
7.2.20. set_enable_a_readid_sequence()
7.2.21. set_enable_a_read_response_sequence()
7.2.22. set_enable_a_read_response_timeout()
7.2.23. set_enable_a_register_incoming_signals()
7.2.24. set_enable_a_waitrequest_during_reset()
7.2.25. set_enable_a_waitrequest_timeout()
7.2.26. set_enable_a_write_burst_timeout()
7.2.27. set_enable_a_writeid_sequence()
7.2.28. Coverage Group
7.2.29. Transaction Monitoring
7.2.28.1. set_enable_c_b2b_read_read()
7.2.28.2. set_enable_c_b2b_read_write()
7.2.28.3. set_enable_c_b2b_write_read()
7.2.28.4. set_enable_c_b2b_write_write()
7.2.28.5. set_enable_c_continuous_read()
7.2.28.6. set_enable_c_continuous_readdatavalid()
7.2.28.7. set_enable_c_continuous_waitrequest()
7.2.28.8. set_enable_c_continuous_waitrequest_from_idle_to_read()
7.2.28.9. set_enable_c_continuous_waitrequest_from_idle_to_write()
7.2.28.10. set_enable_c_continuous_write()
7.2.28.11. set_enable_c_idle_before_transaction()
7.2.28.12. set_enable_c_idle_in_read_response()
7.2.28.13. set_enable_c_idle_in_write_burst()
7.2.28.14. set_enable_c_pending_read()
7.2.28.15. set_enable_c_read()
7.2.28.16. set_enable_c_read_after_reset()
7.2.28.17. set_enable_c_read_burstcount()
7.2.28.18. set_enable_c_read_byteenable()
7.2.28.19. set_enable_c_read_latency()
7.2.28.20. set_enable_c_read_response()
7.2.28.21. set_enable_c_waitrequest_in_write_burst()
7.2.28.22. set_enable_c_waitrequested_read()
7.2.28.23. set_enable_c_waitrequest_without_command()
7.2.28.24. set_enable_c_waitrequested_write()
7.2.28.25. set_enable_c_write()
7.2.28.26. set_enable_c_write_with_and_without_writeresponserequest()
7.2.28.27. set_enable_c_write_after_reset()
7.2.28.28. set_enable_c_write_burstcount()
7.2.28.29. set_enable_c_write_byteenable()
7.2.28.30. set_enable_c_write_response()
7.2.29.1. event_transaction_fifo_threshold()
7.2.29.2. event_transaction_fifo_overflow()
7.2.29.3. event_command_received()
7.2.29.4. event_read_response_complete()
7.2.29.5. event_write_response_complete()
7.2.29.6. event_response_complete()
7.2.29.7. get_clken()
7.2.29.8. get_version()
7.2.29.9. get_command_address()
7.2.29.10. get_command_arbiterlock()
7.2.29.11. get_command_burst_count()
7.2.29.12. get_command_burst_cycle()
7.2.29.13. get_command_byte_enable()
7.2.29.14. get_command_data()
7.2.29.15. get_command_debugaccess()
7.2.29.16. get_command_issued_queue_size()
7.2.29.17. get_command_queue_size()
7.2.29.18. get_command_lock()
7.2.29.19. get_command_request()
7.2.29.20. get_command_transaction_id()
7.2.29.21. get_command_write_response_request()
7.2.29.22. get_read_response_queue_size()
7.2.29.23. get_response_address()
7.2.29.24. get_response_byte_enable()
7.2.29.25. get_response_burst_size()
7.2.29.26. get_response_data()
7.2.29.27. get_response_latency()
7.2.29.28. get_response_queue_size()
7.2.29.29. get_response_read_id()
7.2.29.30. get_response_read_response()
7.2.29.31. get_response_request()
7.2.29.32. get_response_wait_time()
7.2.29.33. get_response_write_id()
7.2.29.34. get_response_write_response()
7.2.29.35. get_transaction_fifo_max()
7.2.29.36. get_transaction_fifo_threshold()
7.2.29.37. get_write_response_queue_size()
7.2.29.38. init()
7.2.29.39. pop_command()
7.2.29.40. pop_response()
7.2.29.41. set_command_transaction_mode()
7.2.29.42. set_transaction_fifo_max()
7.2.29.43. set_transaction_fifo_threshold()
7.2.29.44. signal_command_received
7.2.29.45. signal_fatal_error
7.2.29.46. signal_read_response_complete
7.2.29.47. signal_response_complete
7.2.29.48. signal_transaction_fifo_overflow
7.2.29.49. signal_transaction_fifo_threshold
7.2.29.50. signal_write_response_complete
8.4.1. event_min_transaction_queue_size()
8.4.2. event_response_done()
8.4.3. event_src_driving_transaction()
8.4.4. event_src_not_ready()
8.4.5. event_src_ready()
8.4.6. event_src_transaction_complete()
8.4.7. get_response_latency()
8.4.8. get_response_queue_size()
8.4.9. get_src_ready()
8.4.10. get_src_transaction_complete()
8.4.11. get_transaction_queue_size()
8.4.12. get_version()
8.4.13. init()
8.4.14. pop_response()
8.4.15. push_transaction()
8.4.16. set_max_transaction_queue_size()
8.4.17. set_min_transaction_queue_size()
8.4.18. set_response_timeout()
8.4.19. set_transaction_channel()
8.4.20. set_transaction_data()
8.4.21. set_transaction_idles()
8.4.22. set_transaction_eop()
8.4.23. set_transaction_empty()
8.4.24. set_transaction_error()
8.4.25. set_transaction_sop()
8.4.26. signal_fatal_error
8.4.27. signal_max_transaction_queue_size
8.4.28. signal_min_transaction_queue_size
8.4.29. signal_response_done
8.4.30. signal_src_driving_transaction
8.4.31. signal_src_not_ready
8.4.32. signal_src_ready
8.4.33. signal_src_transaction_complete
9.4.1. event_sink_ready_assert()
9.4.2. event_sink_ready_deassert()
9.4.3. get_transaction_channel()
9.4.4. get_transaction_data()
9.4.5. get_transaction_idles()
9.4.6. get_transaction_eop()
9.4.7. get_transaction_empty()
9.4.8. get_transaction_error()
9.4.9. get_transaction_queue_size()
9.4.10. get_transaction_sop()
9.4.11. get_version()
9.4.12. init()
9.4.13. pop_transaction()
9.4.14. set_ready()
9.4.15. signal_fatal_error
9.4.16. signal_sink_ready_assert
9.4.17. signal_sink_ready_deassert
9.4.18. signal_transaction_received
10.2.1. set_enable_a_empty_legal()
10.2.2. set_enable_a_less_than_max_channel()
10.2.3. set_enable_a_no_data_outside_packet()
10.2.4. set_enable_a_non_missing_endofpacket()
10.2.5. set_enable_a_non_missing_startofpacket()
10.2.6. set_enable_a_valid_legal()
10.2.7. Coverage Group
10.2.8. Transaction Monitoring
10.2.7.1. set_enable_c_all_idle_beats()
10.2.7.2. set_enable_c_all_valid_beats()
10.2.7.3. set_enable_c_b2b_data_different_channel()
10.2.7.4. set_enable_c_b2b_data_same_channel()
10.2.7.5. set_enable_c_b2b_packet_different_channel()
10.2.7.6. set_enable_c_b2b_packet_in_different_transaction()
10.2.7.7. set_enable_c_b2b_packet_same_channel()
10.2.7.8. set_enable_c_b2b_packet_within_single_cycle()
10.2.7.9. set_enable_c_channel_change_in_packet()
10.2.7.10. set_enable_c_empty()
10.2.7.11. set_enable_c_error()
10.2.7.12. set_enable_c_error_in_middle_of_packet()
10.2.7.13. set_enable_c_idle_beat_between_packet()
10.2.7.14. set_enable_c_multiple_packet_per_cycle()
10.2.7.15. set_enable_c_non_valid_ready()
10.2.7.16. set_enable_c_non_valid_non_ready()
10.2.7.17. set_enable_c_packet()
10.2.7.18. set_enable_c_packet_no_idles_no_back_pressure()
10.2.7.19. set_enable_c_packet_size()
10.2.7.20. set_enable_c_packet_with_back_pressure()
10.2.7.21. set_enable_c_packet_with_idles()
10.2.7.22. set_enable_c_partial_valid_beats()
10.2.7.23. set_enable_c_single_packet_per_cycle()
10.2.7.24. set_enable_c_transfer()
10.2.7.25. set_enable_c_transaction_after_reset()
10.2.7.26. set_enable_c_valid_non_ready()
10.2.8.1. event_transaction_fifo_threshold()
10.2.8.2. event_transaction_fifo_overflow()
10.2.8.3. get_transaction_channel()
10.2.8.4. get_transaction_data()
10.2.8.5. get_transaction_empty()
10.2.8.6. get_transaction_eop()
10.2.8.7. get_transaction_error()
10.2.8.8. get_transaction_fifo_max()
10.2.8.9. get_transaction_fifo_threshold()
10.2.8.10. get_transaction_idles()
10.2.8.11. get_transaction_queue_size()
10.2.8.12. get_transaction_sop()
10.2.8.13. get_version()
10.2.8.14. pop_transaction()
10.2.8.15. set_transaction_fifo_max()
10.2.8.16. set_transaction_fifo_threshold()
10.2.8.17. signal_fatal_error
10.2.8.18. signal_transaction_fifo_overflow
10.2.8.19. signal_transaction_fifo_threshold
10.2.8.20. signal_transaction_received
11.3.1. initialize()
11.3.2. rst()
11.3.3. get_src_transaction_complete()
11.3.4. get_outstanding_credit()
11.3.5. push_transaction()
11.3.6. set_max_transaction_queue_size()
11.3.7. set_min_transaction_queue_size()
11.3.8. set_transaction_data()
11.3.9. set_transaction_channel()
11.3.10. set_transaction_error()
11.3.11. set_transaction_idles()
11.3.12. set_transaction_sop()
11.3.13. set_transaction_eop()
11.3.14. set_transaction_empty()
11.3.15. return_credit()
11.3.16. set_user_signal_per_symbol_data()
11.3.17. push_user_signal_per_symbol_transaction()
11.3.18. set_user_signal_per_packet_data()
11.3.19. push_user_signal_per_packet_transaction()
11.3.20. signal_credit_arrived
11.3.21. signal_fatal_error
11.3.22. signal_src_transaction_complete
11.3.23. signal_src_driving_transaction
11.3.24. signal_max_transaction_queue_size
11.3.25. signal_min_transaction_queue_size
12.3.1. initialize()
12.3.2. rst()
12.3.3. get_outstanding_credit()
12.3.4. get_transaction_idles()
12.3.5. get_transaction_data()
12.3.6. get_transaction_channel()
12.3.7. get_transaction_error()
12.3.8. get_transaction_sop()
12.3.9. get_transaction_eop()
12.3.10. get_transaction_empty()
12.3.11. pop_transaction()
12.3.12. send_credit()
12.3.13. get_user_signal_per_symbol_data()
12.3.14. pop_user_signal_per_symbol_transaction()
12.3.15. get_user_signal_per_packet_data()
12.3.16. pop_user_signal_per_packet_transaction()
12.3.17. signal_fatal_error
12.3.18. signal_has_max_credits
12.3.19. signal_transaction_received
14.2.1. event_interface_granted()
14.2.2. event_grant_deasserted_while_request_remain_asserted
14.2.3. event_max_transaction_queue_size()
14.2.4. event_min_transaction_queue_size()
14.2.5. get_input_transaction_queue_size()
14.2.6. get_output_transaction_queue_size()
14.2.7. get_transaction_<role name>_in()
14.2.8. get_transaction_latency()
14.2.9. get_version()
14.2.10. pop_transaction()
14.2.11. push_transaction()
14.2.12. set_max_transaction_queue_size()
14.2.13. set_min_transaction_queue_size()
14.2.14. set_num_of_transactions()
14.2.15. set_transaction_<role name>_out()
14.2.16. set_transaction_<role name>_outen()
14.2.17. set_transaction_idles()
14.2.18. set_valid_transaction_<role name>_out()
14.2.19. signal_all_transactions_complete
14.2.20. signal_fatal_error
14.2.21. signal_grant_deasserted_while_request_remain_asserted
14.2.22. signal_interface_granted
14.2.23. signal_max_transaction_queue_size
14.2.24. signal_min_transaction_queue_size
16.2.1.1. event_unexpected_result_received()
16.2.1.2. event_instructions_completed()
16.2.1.3. event_max_instruction_queue_size()
16.2.1.4. event_min_instruction_queue_size()
16.2.1.5. event_max_result_queue_size()
16.2.1.6. event_min_result_queue_size()
16.2.1.7. get_instruction_queue_size()
16.2.1.8. get_result_delay()
16.2.1.9. get_result_queue_size()
16.2.1.10. get_result_value()
16.2.1.11. get_version()
16.2.1.12. insert_instruction()
16.2.1.13. pop_result()
16.2.1.14. push_instruction()
16.2.1.15. retrieve_result()
16.2.1.16. set_ci_clk_en()
16.2.1.17. set_clock_enable_timeout()
16.2.1.18. set_instruction_a()
16.2.1.19. set_instruction_b()
16.2.1.20. set_instruction_c()
16.2.1.21. set_instruction_dataa()
16.2.1.22. set_instruction_datab()
16.2.1.23. set_instruction_err_inject()
16.2.1.24. set_instruction_idle()
16.2.1.25. set_instruction_n()
16.2.1.26. set_instruction_readra()
16.2.1.27. set_instruction_readrb()
16.2.1.28. set_instruction_timeout()
16.2.1.29. set_instruction_writerc()
16.2.1.30. set_max_instruction_queue_size()
16.2.1.31. set_max_result_queue_size()
16.2.1.32. set_min_instruction_queue_size()
16.2.1.33. set_min_result_queue_size()
16.2.1.34. set_result_timeout()
16.2.1.35. signal_unexpected_result_received
16.2.1.36. signal_fatal_error
16.2.1.37. signal_instructions_completed
16.2.1.38. signal_instruction_start
16.2.1.39. signal_max_instruction_queue_size
16.2.1.40. signal_max_result_queue_size
16.2.1.41. signal_min_instruction_queue_size
16.2.1.42. signal_min_result_queue_size
16.2.1.43. signal_result_received
17.2.1. event_instruction_inconsistent()
17.2.2. event_instruction_unchanged()
17.2.3. event_result_driven()
17.2.4. event_result_done()
17.2.5. event_unknown_instruction_received()
17.2.6. get_ci_clk_en()
17.2.7. get_instruction_a()
17.2.8. get_instruction_b()
17.2.9. get_instruction_c()
17.2.10. get_instruction_dataa()
17.2.11. get_instruction_datab()
17.2.12. get_instruction_idle()
17.2.13. get_instruction_n()
17.2.14. get_instruction_readra()
17.2.15. get_instruction_readrb()
17.2.16. get_instruction_writerc()
17.2.17. get_version()
17.2.18. insert_result()
17.2.19. retrieve_instruction()
17.2.20. set_clock_enable_timeout()
17.2.21. set_instruction_a()
17.2.22. set_instruction_b()
17.2.23. set_instruction_c()
17.2.24. set_instruction_timeout()
17.2.25. set_result_delay()
17.2.26. set_result_err_inject()
17.2.27. set_result_value()
17.2.28. signal_fatal_error
17.2.29. signal_instructions_inconsistent
17.2.30. signal_known_instruction_received
17.2.31. signal_result_done
17.2.32. signal_result_driven
17.2.33. signal_unknown_instruction_received
Visible to Intel only — GUID: nik1412471913227
Ixiasoft
18.2.4. Observing the Results
You can view the simulation results in the following two ways:
- In the ModelSim transcript console
- In the waveforms window
The transcript ModelSim transcript provides the following information:
- When the Avalon-ST source BFM drives a transaction, it also prints the transaction to the ModelSim transcript window.
- The Avalon-ST Sink BFM also prints the transactions it receives on the transcript window.
- The Avalon-ST Sink BFM compares the transaction it receives with the one sent by the Avalon-ST Source BFM. The results of the comparison are printed on the transcript window.
- The idles values for the source and sink are different:
- The Avalon-ST Source BFM sets the number of idle cycles to zero using the set_transaction_idles function.
- The Avalon-ST Sink BFM waits for three cycles before receiving the first transaction. The three-cycle delay is necessary for the transaction to propagate from the input to the output of the sink FIFO buffer.
- The difference in values for the idle field is not an error. The Avalon-ST interface protocol allows source and sink components to have different latencies.
The following example shows the ModelSim transcript for the source response latency. This latency is the number of clock cycles the Avalon-ST Single-Clock FIFO buffer takes when the Avalon-ST Single-Clock FIFO buffer backpressures the Avalon-ST Source BFM. The third response shows a non-zero response latency. During the third transaction, the Avalon-ST Single-Clock FIFO buffer is full. It is not able to receive the transaction. As a result, the Avalon-ST Single-Clock FIFO buffer backpressures the Avalon-ST Source BFM.
# 1030000:INFO:top.pgm.test_threads.source_response_thread: Source response latency 0
# 1050000:INFO:top.pgm.test_threads.source_response_thread: Source response latency 0
# 1090000:INFO:top.pgm.test_threads.source_response_thread: Source response latency 1
# 1110000:INFO:top.pgm.test_threads.source_response_thread: Source response latency 0
Figure 27. Timing from ModelSim SimulationThis figure shows the simulation timing from the ModelSim wave window.