Altera Mentor Verification IP Altera Edition AMBA AXI3/4T Instrukcja Użytkownika Strona 662
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Mentor VIP AE AXI3/4 User Guide, V10.2b
642
VHDL Tutorials
Verifying a Master DUT
September 2013
Note
In addition to the above variables and procedures, you can configure other aspects of the
AXI4 Slave BFM by using the procedures: “set_config()” on page 352 and
“get_config()” on page 354.
Using the AXI4 Basic Slave Test Program API
There are a set of variables and procedures that you can use to create stimulus scenarios based
on a memory-model slave with a minimal amount of editing, as described in the AXI4 Basic
Slave API Definition section.
Consider the following configuration when using the slave test program.
• slave_mode - The read and write channel interaction can cause simultaneous read and
write transactions to occur at the same address. With the default slave_mode setting the
read transaction data burst is buffered at the start of the burst and the write data burst is
buffered at the end of the burst. This can result in the read data being stale at the time it
is transmitted over the protocol signals. If this is an undesirable feature, then set the
slave_mode to be AXI4_PHASE_SLAVE.
• m_max_outstanding_read_trans - The maximum number of outstanding (incomplete)
read transactions that can be initiated by a master test program before the slave test
program applies back-pressure to the master by deasserting the ARREADY signal. When
subsequent read transactions complete, then the slave test program asserts ARREADY.
• m_max_outstanding_write_trans - The maximum number of outstanding (incomplete)
write transactions that can be initiated by a master test program before the slave test
program applies back-pressure to the master by deasserting the AWREADY signal. When
subsequent read transactions complete, then the slave test program asserts AWREADY.
- Verification IP Altera 1
- Edition 1
- AMBA AXI3/4 1
- User Guide 1
- Table of Contents 10
- List of Examples 13
- List of Figures 16
- List of Tables 17
- About This User Guide 19
- Protocol Restrictions 19
- Supported Simulators 20
- Simulator GCC Requirements 21
- Chapter 1 23
- Mentor VIP Altera Edition 23
- What Is a Transaction? 24
- An AXI Transaction 24
- Chapter 2 31
- SystemVerilog API Overview 31
- Transaction Record 33
- Table 2-1. Transaction Fields 35
- AXI3 BFM Delay Mode 48
- Chapter 3 51
- SystemVerilog Master API 57
- Chapter 4 87
- SystemVerilog Slave API 93
- Operational 100
- Transaction 100
- AXI3 Example 101
- AXI4 Example 101
- September 2013 107
- AXI3 BFM 109
- Helper Functions 118
- Chapter 5 121
- Monitor BFM Protocol Support 122
- Monitor Timing and Events 122
- Monitor BFM Configuration 122
- Timing Variables 124
- Slave Attributes 125
- Error Detection 125
- Monitor Assertions 126
- SystemVerilog Monitor API 127
- Prototype 128
- Arguments 128
- Arguments config_name 130
- (AXI4) Configuration name: 130
- Chapter 6 155
- SystemVerilog Tutorials 155
- AXI3 BFM Master Test Program 156
- AXI4 BFM Master Test Program 161
- Verifying a Slave DUT 162
- Verifying a Master DUT 173
- Example 6-30. process_write 184
- Example 6-31. handle_write 185
- AXI4 BFM Slave Test Program 186
- Internal Memory 187
- Example 6-44. handle_read 197
- Example 6-45. process_write 198
- Chapter 7 203
- VHDL API Overview 203
- Test Program VHDL 204
- VHDL to SV Wrapper 204
- Configuration 205
- Creating Transactions 206
- AXI4 Transaction Definition 207
- Table 7-1. Transaction Fields 209
- Transaction Field Description 209
- Protocol Transaction Fields 209
- Executing Transactions 212
- Waiting Events 213
- Access Transaction Record 214
- Operation Mode 216
- Channel Handshake Delay 217
- AXI4 BFM Handshake Delay 218
- Data Beat Done 220
- Transaction Done 220
- Chapter 8 221
- Master BFM Protocol Support 222
- Master Timing and Events 222
- Master BFM Configuration 222
- Master Assertions 225
- AXI4 Assertion Configuration 226
- VHDL Master API 227
- Protocol 233
- Arguments cache 255
- AXI4 BFM 297
- Chapter 9 365
- VHDL AXI3 and AXI4 Slave BFMs 365
- Slave BFM Configuration 366
- Slave Assertions 369
- AXI3 Assertion Configuration 370
- VHDL Slave API 371
- Returns transaction_id 378
- Chapter 10 505
- VHDL Monitor API 511
- Chapter 11 627
- VHDL Tutorials 627
- Example 11-29. handle read 656
- Example 11-38. process_write 668
- Chapter 12 673
- Running the Qsys Tool 676
- Running Simulation 679
- Example Script Processing 682
- Appendix A 685
- Assertions 685
- AXI4 Assertions 698
- Appendix B 715
- Programs 715
- Appendix C 751
- End-User License Agreement 779
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