The interconnect switches exist in each of the major subsystems including the PMC, LPD, and FPD. The contrasting functionality is shown in the following table.
| Function | Zynq UltraScale+ MPSoC | Versal ACAP | Description |
|---|---|---|---|
| Bus isolation | AXI isolation block (AIB) | ePort Isolation | For security and power management. |
| Timeout | AXI timeout block (ATB) | ePort Timeout | The timeout monitors the AMBA interconnect ePorts. |
| Transaction integrity error checking | ~ | ePort and iPort parity | Data parity is generated on incoming data. The parity is checked when the data exits the interconnect. |