What's the minimum clock cycles number to read and write with AXI4Lite

Question

I'm wondering what is the minimum number of clock cycle to do a simple access on an AXI4Lite bus.

I think it's 4, but I'm not sure.

score 5 · Accepted Answer · answered May 04 '17 at 05:53

In theory, you can have single cycle (combinatorial) transaction, but that's not practical in most cases, so two cycles - one for address and one for data is the practical minimum. This ignores the B-channel in write, which is quite typical.

If you want to know what's the minimum in your IP, just tie READY signals to '1' and see what happens.

What's the minimum clock cycles number to read and write with AXI4Lite

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