AXI3 Vs AXI4 The difference between AXI3 and
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
3. AXI3 supports locked transfers, AXI4 does NOT support locked
4. AXI4 supports QoS, AXI3 does NOT suppor QoS.
I have seen many IP providers e.g. Synopsys supporting burst lengths
up to 256 beats in AXI3
I have also seen many IP providers e.g. Synopsys NOT supporting
write interleaving in AXI3.
Looks like the industry norm is to use AXI3 with burst lenghts up to
256 beats without support for write Interleaving.