AXI3 bus protocol

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I have two questions about AXI3.0 bus

  1. On what basis, address space is decided to 4KB ?
  2. AXI write has write strobe but why AXI read does not have read strobe?
    It will great if anyone can explain.

Thanks

2

  1. By having limitation on max burst boundary, allow efficient system design by enabling the arbitration logic in the interconnect to give all masters a fair chance at burst boundaries. Otherwise a master doing large bursts for a long time could potentially clog the system performance.

  2. There is no meaning to have Strobe at read because read is always gives the data which is asked , Only writing has additional requirement if data should write fully or partially based on memory.

-Vinay Jain