or protocol specific extension to the TLM generic payload that can be used as an ignorable extension to the generic payload transactions used by AXI master initiators and targets.</p><p>Specifically it can be used to specify AXI master transactor configurations and to allow <i>config query</i> and <i>config update</i> operations on those configurations.</p><p>This allows for optionally simultaneously updating the configuration when using the generic payload for its normal purpose which is to allow the AXI m