DIFFERENCE BETWEEN AXI3 AND AXI4

UVM
1

what are the major difference between axi3 and axi4 protocol, and what’s the usefulness of the changes made?

2

In reply to sam4199:

  1. AXI3 supports burst lengths up to 16 beats only. While AXI4 supports burst lengths of up to 256 beats.
  2. AXI3 supports write interleaving. AXI4 does NOT support write interleaving
  3. AXI3 supports locked transfers, AXI4 does NOT support locked transfers
  4. AXI4 supports QoS, AXI3 does NOT suppor QoS.