Altera® AXI4 Bus Functional Model User Guides

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ID 838773
Date 5/19/2025
Public
Document Table of Contents
Document Table of Contents x
Answers to Top FAQs 1. Altera® AXI4 Memory-Mapped BFM User Guide 2. Altera® AXI4 Streaming BFM User Guide 3. Document Revision History of Altera® AXI4 Bus Functional Model User Guides A. API Translation: Mentor* VIP to Altera® AXI4 Memory-Mapped BFM
1. Altera® AXI4 Memory-Mapped BFM User Guide x
1.1. Altera® AXI4 Memory-Mapped BFM Overview 1.2. Altera® AXI4 Memory-Mapped BFM Architecture 1.3. Altera® AXI4 Memory-Mapped BFM Configuration and Interfaces 1.4. Using the Altera® AXI4 Memory-Mapped BFMs 1.5. Altera® AXI4 Memory-Mapped BFM API 1.6. Altera® AXI4 Memory-Mapped Assertions
1.1. Altera® AXI4 Memory-Mapped BFM Overview x
1.1.1. Altera® AXI4 Memory-Mapped Specification Support 1.1.2. Altera® AXI4 Memory-Mapped BFM Components 1.1.3. Altera® AXI4 Memory-Mapped Supported Features 1.1.4. Altera® AXI4 Memory-Mapped BFM SystemVerilog Packages 1.1.5. Altera® AXI4 Memory-Mapped BFM Supported Flows 1.1.6. Altera® AXI4 Memory-Mapped BFM Supported Simulators
1.2. Altera® AXI4 Memory-Mapped BFM Architecture x
1.2.1. Altera® AXI4 Memory-Mapped Manager BFM Architecture 1.2.2. Altera® AXI4 Memory-Mapped Subordinate BFM Architecture 1.2.3. Altera® AXI4 Memory-Mapped Monitor BFM Architecture 1.2.4. Altera® AXI4 Memory-Mapped BFM Transaction Class
1.2.4. Altera® AXI4 Memory-Mapped BFM Transaction Class x
1.2.4.1. Altera® AXI4 Transaction Information
1.3. Altera® AXI4 Memory-Mapped BFM Configuration and Interfaces x
1.3.1. Altera® AXI4 Memory-Mapped Manager BFM Configuration 1.3.2. Altera® AXI4 Memory-Mapped Manager BFM Interface 1.3.3. Altera® AXI4 Memory-Mapped Subordinate BFM Configuration 1.3.4. Altera® AXI4 Memory-Mapped Subordinate BFM Interface 1.3.5. Altera® AXI4-Lite Memory-Mapped Manager BFM Configuration 1.3.6. Altera® AXI4-Lite Memory-Mapped Manager BFM Interface 1.3.7. Altera® AXI4-Lite Memory-Mapped Subordinate BFM Configuration 1.3.8. Altera® AXI4-Lite Memory-Mapped Subordinate BFM Interface 1.3.9. Altera® AXI4 Memory-Mapped Inline Monitor Configuration 1.3.10. Altera® AXI4 Inline Monitor Interface
1.4. Using the Altera® AXI4 Memory-Mapped BFMs x
1.4.1. Using the Altera® AXI4 Memory-Mapped Manager BFM Flow 1.4.2. Using the Altera® AXI4 Memory-Mapped Subordinate BFM Flow 1.4.3. Using the Altera® AXI4 Memory-Mapped Monitor BFM Flow 1.4.4. Altera® AXI4 Memory-Mapped Manager RTL Implementation Example 1.4.5. Altera® AXI4 Memory-Mapped Manager Platform Designer BFM Implementation Example
1.5. Altera® AXI4 Memory-Mapped BFM API x
1.5.1. Altera® AXI4 Memory-Mapped BFM Configuration API 1.5.2. Altera® AXI4 Memory-Mapped BFM Reset API 1.5.3. Altera® AXI4 Memory-Mapped Manager Transaction Creation API 1.5.4. Altera® AXI4 Memory-Mapped Subordinate Transaction Creation API 1.5.5. Altera® AXI4 Memory-Mapped Transaction Configuration API 1.5.6. Altera® AXI4 Memory-Mapped BFM Transaction Execution API 1.5.7. Altera® AXI4 Memory-Mapped Host Memory API
2. Altera® AXI4 Streaming BFM User Guide x
2.1. Altera® AXI4 Streaming BFM Overview 2.2. Altera® AXI4 Streaming BFM Architecture 2.3. Altera® AXI4 Streaming BFM Configuration and Interfaces 2.4. Using the Altera® AXI4 Streaming BFMs 2.5. Altera® AXI4 Streaming BFM Packages, Classes, Interfaces, and Modules
2.1. Altera® AXI4 Streaming BFM Overview x
2.1.1. AXI4 Protocol Specification Support 2.1.2. Altera® AXI4 Streaming BFM Components 2.1.3. AXI4 Streaming Supported Features 2.1.4. Altera® AXI4 Streaming BFM SystemVerilog Packages 2.1.5. Altera® AXI4 Streaming BFM Supported Flows 2.1.6. Altera® AXI4 Streaming BFM Supported Simulators
2.2. Altera® AXI4 Streaming BFM Architecture x
2.2.1. Altera® AXI4 Streaming BFM Data Organization 2.2.2. AXI4 Streaming Data Transfer 2.2.3. Altera® AXI4 Streaming Transmitter BFM 2.2.4. Altera® AXI4 Streaming Receiver BFM
2.2.1. Altera® AXI4 Streaming BFM Data Organization x
2.2.1.1. Altera® AXI4 Streaming BFM Beats 2.2.1.2. Altera® AXI4 Streaming BFM Transfers 2.2.1.3. Altera® AXI4 Streaming BFM Packets
2.3. Altera® AXI4 Streaming BFM Configuration and Interfaces x
2.3.1. Altera® AXI4 Streaming Transmitter BFM Configuration 2.3.2. Altera® AXI4 Streaming Transmitter BFM Interfaces 2.3.3. Altera® AXI4 Streaming Receiver BFM Configuration 2.3.4. Altera® AXI4 Streaming Receiver BFM Interface
2.4. Using the Altera® AXI4 Streaming BFMs x
2.4.1. Using the Transmitter BFM Flow 2.4.2. Using the Receiver BFM Flow 2.4.3. Altera® AXI4 Streaming BFM Tools 2.4.4. Altera® AXI4 Streaming BFM RTL Example 2.4.5. Altera® AXI4 Streaming BFM Platform Designer Example
2.4.3. Altera® AXI4 Streaming BFM Tools x
2.4.3.1. Number Formatting 2.4.3.2. Transfer Printing 2.4.3.3. Transfer Comparison
2.5. Altera® AXI4 Streaming BFM Packages, Classes, Interfaces, and Modules x
2.5.1. Altera® AXI4 Streaming Common BFM Packages, Classes, Interfaces, and Modules 2.5.2. Altera® AXI4 Streaming Transmitter BFM Packages, Classes, and Modules 2.5.3. Altera® AXI4 Streaming Receiver BFM Packages, Classes, and Modules
2.5.1. Altera® AXI4 Streaming Common BFM Packages, Classes, Interfaces, and Modules x
2.5.1.1. Package axi4_stream_bfm_types_pkg 2.5.1.2. Package axi4_stream_bytes_class_pkg 2.5.1.3. Package axi4_stream_transfer_class_pkg 2.5.1.4. Package axi4_stream_packet_class_pkg
2.5.1.1. Package axi4_stream_bfm_types_pkg x
2.5.1.1.1. Typedefs 2.5.1.1.2. Utility Function num_formatter 2.5.1.1.3. Interface axi4_stream_if 2.5.1.1.4. AXI4 Streaming Interface Modports 2.5.1.1.5. Protocol-Checking Assertions
2.5.1.2. Package axi4_stream_bytes_class_pkg x
2.5.1.2.1. Class Axi4StreamBytes 2.5.1.2.2. Data Members in Axi4StreamBytes Class 2.5.1.2.3. Methods in Axi4StreamBytes Class 2.5.1.2.4. Class Axi4StreamBytesData 2.5.1.2.5. Methods in Axi4StreamBytesData Class 2.5.1.2.6. Class Axi4StreamBytesPosition 2.5.1.2.7. Methods in Axi4StreamBytesPosition Class 2.5.1.2.8. Class Axi4StreamBytesNull 2.5.1.2.9. Methods in Axi4StreamBytesNull Class 2.5.1.2.10. Class Axi4StreamBytesDataError 2.5.1.2.11. Data Members in Axi4StreamBytesDataError Class 2.5.1.2.12. Methods in Class Axi4StreamBytesDataError 2.5.1.2.13. Class Axi4StreamBytesPositionError 2.5.1.2.14. Data Members in Class Axi4StreamBytesPositionError 2.5.1.2.15. Methods in Class Axi4StreamBytesPositionError 2.5.1.2.16. Class Axi4StreamBytesNullError 2.5.1.2.17. Data Members in Class Axi4StreamBytesNullError 2.5.1.2.18. Methods in Class Axi4StreamBytesNullError
2.5.1.3. Package axi4_stream_transfer_class_pkg x
2.5.1.3.1. Class Axi4StreamTransfer 2.5.1.3.2. Data Members in Class Axi4StreamTransfer 2.5.1.3.3. Methods in Class Axi4StreamTransfer
2.5.1.4. Package axi4_stream_packet_class_pkg x
2.5.1.4.1. Class Axi4StreamPacket 2.5.1.4.2. Data Members in Class Axi4StreamPacket 2.5.1.4.3. Methods in Class Axi4StreamPacket
2.5.2. Altera® AXI4 Streaming Transmitter BFM Packages, Classes, and Modules x
2.5.2.1. Package axi4_stream_bfm_transmit_pkg.sv
2.5.2.1. Package axi4_stream_bfm_transmit_pkg.sv x
2.5.2.1.1. Class TransmitBFM 2.5.2.1.2. Module axi4_stream_bfm_transmit_top 2.5.2.1.3. Method Prototypes in Class TransmitBFM
2.5.3. Altera® AXI4 Streaming Receiver BFM Packages, Classes, and Modules x
2.5.3.1. Package axi4_stream_bfm_receive_pkg.sv
2.5.3.1. Package axi4_stream_bfm_receive_pkg.sv x
2.5.3.1.1. Class ReceiveBFM 2.5.3.1.2. Module axi4_stream_bfm_receive_top 2.5.3.1.3. Method Prototypes in Class ReceiveBFM
Answers to Top FAQs
1. Altera® AXI4 Memory-Mapped BFM User Guide
2. Altera® AXI4 Streaming BFM User Guide
3. Document Revision History of Altera® AXI4 Bus Functional Model User Guides
A. API Translation: Mentor* VIP to Altera® AXI4 Memory-Mapped BFM

1.2.4.1. Altera® AXI4 Transaction Information

You can set the transaction information by using the following fields in the AlteraAxiTransaction class.

Table 3.   Altera® AXI4 Transaction Information
AlteraAxiTransaction Field Description
id Specifies the Identification tag for a transaction. This value applies to AWID, ARID, BID, and RID signals, according to the transaction that is created. Refer to AMBA AXI and ACE Protocol Specification, A5-81.
awaddr Specifies the address of the first transfer in a write transaction. It takes the width of the address bus.
burst_len Actual data transfer per transaction is burst_len+1. So, burst_len=0 generates 1 data transfer, burst_len=1, burst_len+1 generates 2 data transfers in a transaction. This value is applied to AWLEN and ARLEN according to the transaction type.
burst_size An enumerated type that specifies the burst sizes according to the AXI4 specification, as follows:
  • AXI4_BYTES_1
  • AXI4_BYTES_2
  • AXI4_BYTES_4
  • AXI4_BYTES_8
  • AXI4_BYTES_16
  • AXI4_BYTES_32
  • AXI4_BYTES_64
  • AXI4_BYTES_128
This value is applied to AWSIZE and ARSIZE, not AxLEN.
burst_type An enumerated type that specifies the burst types according to the AXI4 specification, as follows:
  • BURST_TYPE_FIXED
  • BURST_TYPE_INCR
  • BURST_TYPE_WRAP
  • BURST_TYPE_INVALID (not used as specification allows only three burst types.)
This value is applied to AWBURST and ARBURST according to the transaction type.
lock An enumerated type that specifies the atomic characteristics of a transaction. The type of atomic access can be one of the following:
  • NORMAL
  • EXCLUSIVE
prot An enumerated type that specifies the following privilege, security level, and access type protection attributes of a transaction:
  • NORM_SEC_DATA
  • PRIV_SEC_DATA
  • NORM_NONSEC_DATA
  • PRIV_NONSEC_DATA
  • NORM_SEC_INST
  • PRIV_SEC_INST
  • NORM_NONSEC_INST
  • PRIV_NONSEC_INST

The Altera® AXI4 MM Subordinate BFM host memory implementation does not support protection attributes. However, you can store the data in your own memory and process the data according to the protection attributes. These enumeration strings (and others in the transaction class) use the same or similar names as the Siemens EDA ModelSim* simulator for ease of use and migration. Future releases may use different names for these enumeration strings.

data_words Sets write data for a write transaction. This is an unbounded array using which data for each beat of the burst can be specified. This is driven on WDATA channel in a write transaction and stores the data read from a subordinate on the RDATA channel in case of a read transaction.
wstrb Unbounded array that specifies which byte lane contains valid data. This byte lane width is calculated based on the data bus width.
resp An enumerated type that specifies a write transaction response according to the specification. The Altera® AXI4 MM Subordinate BFM drives the OKAY response for all compliant transactions. You can drive the following different responses, according to the specification:
  • OKAY_RESP
  • EXOKAY_RESP
  • SLVERR_RESP
  • DECERR_RESP
rresp Enumerated type filed that you can use to set a read response , as resp field describes.
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