Difference btw AXI3 and AXI4

Hi Collin,

"Additional handshake rule describing that B channel response can only be returned after both the AW and final W channel transfers have completed." 

1. I think this is the case with AXI3 also or am I missing anything here? 

2. If this is a unique requirement for AXI4, what is the reason for it?

Thanks,

Amaresh

Hi Collin,

"Additional handshake rule describing that B channel response can only be returned after both the AW and final W channel transfers have completed." 

1. I think this is the case with AXI3 also or am I missing anything here? 

2. If this is a unique requirement for AXI4, what is the reason for it?

Thanks,

Amaresh

Sorry my bad, the additional handshake is defined between AWVALD and BVALID in AXI4 in addition to WVALID to BVALID which was defined in AXI3.

Can you help me to understand the implications of this?

Thanks,

Amaresh