A couple of further details on the question.
Let's assume that I have a 64-bit data bus and a 32-bit address bus.
A master issues a WRAP burst with AWADDR[31:0] = 32'd8 and AWSIZE[2:0] = 3'b110. That is, the start address is 8 and the beat size is 64 bits (thus the burst is non-narrow).
I am trying to understand if there are any restrictions on the value of WSTRB[7:0]: can the master disable byte lanes in this burst?
Thanks in advance for your help.
Thanks Colin, everything is clear now. My mistake on the encoding of AWSIZE, you are right.