Every SSI technology device has a single master SLR. The master SLR contains the primary configuration logic that initiates configuration of the device and all other SLR components. The master SLR contains the circuitry that is used for configuration, DNA_PORT, and EFUSE_USER. When using these components, the place and route tools can assign associated pins and logic to the appropriate SLR. In general, no additional intervention is required.
Tip: To query which SLR is the master SLR in the Vivado Design Suite, you can enter the
get_slrs -filter IS_MASTER Tcl command.