One AXI port if formed of five separate interfaces: two for read, three for write.
Often the address and data for write will run in lockstep, making a more natural total of four logical interfaces.
Sequential consistency: RaW and WaR hazards are immediately manifest!
AXI can be used with and without (AXI-lite) ordering tokens/tags.
AXI is widely used even for non-ARM products »ARM AXI
| 79: (C) 2008-16, DJ Greaves, University of Cambridge, Computer Laboratory. |