Avalon Verification IP Suite: User Guide

Download
ID 683439
Date 2/17/2022
Public
Document Table of Contents
Document Table of Contents x
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
1. Introduction to Avalon Verification IP Suite x
1.1. Advantages of Using BFMs and Monitors 1.2. BFM Implementation 1.3. Application Programming Interface 1.4. Application Example of BFMs
2. Clock Source BFM x
2.1. Parameters 2.2. Clock Source API
2.2. Clock Source API x
2.2.1. Clock_start() 2.2.2. Clock_stop() 2.2.3. get_run_state() 2.2.4. get_version()
3. Reset Source BFM x
3.1. Parameters 3.2. Reset Source API
3.2. Reset Source API x
3.2.1. reset_deassert 3.2.2. get_version()
4. Avalon Interrupt Source and Interrupt Sink BFMs x
4.1. Parameters 4.2. Interrupt Source and Sink API
4.2. Interrupt Source and Sink API x
4.2.1. get_irq() 4.2.2. get_version() 4.2.3. set_irq()
5. Avalon-MM Master BFM x
5.1. Timing 5.2. Block Diagram 5.3. Parameters 5.4. Avalon-MM Master BFM API
5.4. Avalon-MM Master BFM API x
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. Avalon-MM Slave BFM x
6.1. Timing 6.2. Block Diagram 6.3. Parameters 6.4. Avalon-MM Slave BFM API
6.4. Avalon-MM Slave BFM API x
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. Avalon-MM Monitor x
7.1. Parameters 7.2. Avalon-MM Monitor Assertion Checking API
7.2. Avalon-MM Monitor Assertion Checking API x
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. Coverage Group x
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. Transaction Monitoring x
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. Avalon-ST Source BFM x
8.1. Timing 8.2. Block Diagram 8.3. Parameters 8.4. Avalon-ST Source API
8.4. Avalon-ST Source API x
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. Avalon-ST Sink BFM x
9.1. Timing 9.2. Block Diagram 9.3. Parameters 9.4. Application Program Interface
9.4. Application Program Interface x
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. Avalon-ST Monitor x
10.1. Parameters 10.2. Avalon-ST Monitor Assertion Checking API
10.2. Avalon-ST Monitor Assertion Checking API x
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. Coverage Group x
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. Transaction Monitoring x
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. Avalon Streaming Credit Source BFM x
11.1. Parameters 11.2. Implementation 11.3. Avalon® Streaming Interface Credit Source APIs
11.3. Avalon® Streaming Interface Credit Source APIs x
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. Avalon Streaming Credit Sink BFM x
12.1. Parameters 12.2. Implementation 12.3. Avalon® Streaming Interface Credit Sink APIs
12.3. Avalon® Streaming Interface Credit Sink APIs x
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
13. Conduit BFM x
13.1. Parameters 13.2. Conduit BFM API
13.2. Conduit BFM API x
13.2.1. event_reset_asserted 13.2.2. get_<role name>() 13.2.3. get_version() 13.2.4. set_<role name>() 13.2.5. set_<role name>_oe() 13.2.6. signal_input_<role name>_change
14. Tri-State Conduit BFM x
14.1. Parameters 14.2. Tri-State Conduit BFM API
14.2. Tri-State Conduit BFM API x
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
15. External Memory BFM x
15.1. Using the External Memory BFM 15.2. Parameters 15.3. External Memory BFM API
15.3. External Memory BFM API x
15.3.1. read() 15.3.2. signal_api_call 15.3.3. write()
16. Nios II Custom Instruction Master BFM x
16.1. Parameters 16.2. Nios II Custom Instruction API
16.2. Nios II Custom Instruction API x
16.2.1. event_result_received()
16.2.1. event_result_received() x
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. Nios II Custom Instruction Slave BFM x
17.1. Parameters 17.2. Nios II Custom Instruction Slave BFM API
17.2. Nios II Custom Instruction Slave BFM API x
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
18. Avalon-ST Verilog HDL Testbench x
18.1. Verifying Avalon-ST DUT 18.2. About the Test
18.2. About the Test x
18.2.1. Creating the Qsys Design 18.2.2. Generating a Qsys Testbench System 18.2.3. Running the Simulation 18.2.4. Observing the Results
19. Avalon-MM Verilog HDL and VHDL Testbenches x
19.1. Avalon-MM Verilog HDL Testbench Description 19.2. Avalon-MM VHDL Testbench Description 19.3. Using the VHDL BFMs
19.1. Avalon-MM Verilog HDL Testbench Description x
19.1.1. Running the Verilog HDL Testbench for a Single Avalon-MM Master and Slave Pair 19.1.2. Running the Verilog HDL Testbench for the Two Avalon-MM Masters and Slaves
19.2. Avalon-MM VHDL Testbench Description x
19.2.1. Running the Testbench for a Single Avalon-MM Master and Slave Pair 19.2.2. Running the Testbench for Two Avalon-MM Masters Slaves
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

13. Conduit BFM

You can use Conduit BFMs to verify the following aspects of Avalon Conduit interfaces:
  • Port compatibility and polarity
  • Legal port widths
Figure 21. Conduit BFM Block Diagram

An Avalon Conduit interface can have an arbitrary number of ports. Conduit ports can have the following characteristics:

  • Conduit ports can be an input, output, or bidirectional
  • Conduit port widths can range from 1-1024 bits
  • Conduit ports have an associated role name. This role name is an arbitrary string. Qsys uses the role name to verify conduit interconnect compatibility between components.
  • A conduit port connection is legal when two conduit interconnected components have the same port role names and complementary directions. For example, when an input connects with an output, the connection is legal.
  • A conduit port can also have a specific role named export. Ports with this role name are exported from the current system design module to the Conduit BFM module I/O.

The conduit API constructs or deconstructs transactions. Transactions are driven out on the physical conduit interface.

To simulating conduit interfaces, you must understand the following points:

  1. At the beginning of the simulation, registers that store data sent to the output ports are empty.
  2. The Conduit BFM drives ‘x’ to the output ports until you rewrite the registers by calling the set_<role name> API.
  3. Initially, bidirectional ports work as input ports. You can change conduit port functionality by calling the set_<role name>_oe API.
  4. The Conduit BFM prints a message when a bidirectional port changes from an input to an output, and vice versa.
  5. Bidirectional ports drive register values to the interface when this API is set to 1. Otherwise, bidirectional ports work as input ports.
  6. You can call the get_<role name> API to obtain the value coming from the input and bidirectional ports.
Level Two Title

Did you find the information on this page useful?

Characters remaining:

Feedback Message