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I'm a graduate student living in south Korea. I'm studying about AMBA 3.0 AXI.
recently, i read "AMBA® AXI Protocol.pdf". but i have two questions about AXI after reading.
i wonder about interleaving and out-of order.
AXI supports out-of order and interleaving. read transaction and write transaction enable out-of order.
does interleaving be enable only write transaction?
also, the masters have slave interface including write interleaving depth. if a salve interface attaching a master(M0) has write interleaving depth of two, can the master(M0) process write data interleaving about write data having different ID filed?
Hello Cao Phi,
In the example, if slave have write interleaving depth are 2 then slave will accept only first two AW1 and AW2. After that slave will deassert AWREADY. Therefore, W3 will not issue.
I think it would not be correct.
Because AWREADY and WREADY are independent, W(3) could come before AW(3) although AWREADY was de-asserted.
How does a slave act in this case?
If the slave de-asserts WREADY for W3, no more W(1) or W(2) can be gotten.
What mean "the data comes before the corresponding address"?? Can you give me a example??
What mean "the data comes before the corresponding address"??
Can you give me a example??
It is the meaning just as written.
I am afraid about the following case.
Best regards,
Yasuhiko Koumoto.
Thank you very much.
yasuhikokoumoto wrote: Hello Cao Phi, In the example, if slave have write interleaving depth are 2 then slave will accept only first two AW1 and AW2. After that slave will deassert AWREADY. Therefore, W3 will not issue. I think it would not be correct. Because AWREADY and WREADY are independent, W(3) could come before AW(3) although AWREADY was de-asserted. How does a slave act in this case? If the slave de-asserts WREADY for W3, no more W(1) or W(2) can be gotten. What mean "the data comes before the corresponding address"?? Can you give me a example?? It is the meaning just as written. I am afraid about the following case. Best regards, Yasuhiko Koumoto.
yasuhikokoumoto wrote: