The following figure shows the S_AXI port of the XMPU_PL may be directly connected to a PS master I/F. The data widths of both interfaces are selectable in their respective IP customization settings in the IP integrator. It is the responsibility of the user to ascertain that both are set to the same value.
Figure 1. PS Master I/F Direct Connection
Note: The XMPU_PL will not provide any AXI data width conversion. Use
SmartConnect upstream, and/or AXI-Interconnect downstream, to provide any needed data or
clock conversions between the PS Master and end-point PL-Slaves.