RTL Studio Open IDE

4.4 · AXI CLASS

Out-of-order scoreboard: match responses by BID and RID

Match write/read responses to address-phase transactions using BID/RID lookup.

Video coming soon. This lesson page stays at the same URL when the lecture publishes.

What you practice

Out-of-order scoreboard: match responses by BID and RID (4.4). Match write/read responses to address-phase transactions using BID/RID lookup. It is in Out-of-Order Scoreboard — Part 4 · AXI4 Full UVM Verification of the AXI Masterclass. Five-channel parallel UVM for AXI Full timing.

AXI only counts when the handshake simulates. RTL Studio is the Verilog and SystemVerilog IDE where you edit the RTL and prove each beat on a VCD.

Run it in the Verilog IDE

  1. Open the lesson in the IDE and find the valid/ready or AXI channel ports in the editor.
  2. Simulate with Verilator. Confirm the beat on the VCD, not only in the transcript.
  3. Check that data moves only on the beats this lesson describes, and that backpressure holds the transfer.
  4. Synthesize the RTL master, slave, or buffer with Yosys. Leave the UVM bench out of synthesis.

The lesson is done when the simulation matches Out-of-order scoreboard: match responses by BID and RID. Change the source, run the Verilog simulator again, and read the waveform without leaving the IDE. Simulation guide · Yosys guide.