Hi, regarding AXI wrte strobe functionality...

I'm trying to understand the write strobe functionality for a 128bit bus width, burst type FIXED.

Case scenario:

AXI bus width 128bit.

awlen    = 3 (4 write transfers)

awsize  = 2 (32bit per each transfer)

awburst = 0 (FIXED)

awaddr  = 0x6116_0304;

How will the write strobe look like throughout the burst?.

1. 0x00f0, 0x0f00, 0xf000, 0x000f

or

2. 0x00f0, 0x00f0, 0x00f0, 0x00f0

Please explain why.

Many thanks.

Tsach

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