Zynq UltraScale+ MPSoC Devices

• eFUSEs of Processing System (PS) of ZynqMP SoC holds the AES key, user data, PPK0 and PPK1 hashes, SPK_ID, some bits which can be used to enable/disable some of the features of SoC
• BBRAM holds the AES key
• Support of Physically Unclonable Function (PUF)
• Supports ZU+ PL similar to Ultrascale plus devices.

Refer following documents for detailed information on BBRAM and eFUSE functionality.

1. 1. Programming BBRAM and eFUSEs (XAPP1319)
   2. Internal programming of BBRAM and eFUSEs (XAPP1283)
   3. Xilinx Standalone Library Documentation (UG1191)

Caution:

eFUSE bits are one-time programmable. Once they are programmed(burnt), they cannot be modified.