An AXI/APB isolation block programming model when using AXI as a slave is listed in the following steps. 1.Enable the slave response by configuring the ISO_AIBAXI_TYPE (0xFF413038) register for a specific slave. RECOMMENDED: AMD recommends configuring this register during boot time and not changing it later. 2.Request for the isolation by writing into the ISO_AIBAXI_REQ (0xFF413030) register depending on the slave to be isolated. 3.Wait for the acknowledgment by polling the ISO_AIBAXI_ACK (0xFF413040) register. RECOMMENDED: AMD recommends holding the request until there is an acknowledgment.