eFUSE

Zynq UltraScale+ Device Technical Reference Manual (UG1085)

Document ID
UG1085
Release Date
2022-09-15
Revision
2.3 English

The eFUSE array contains a block of 256 eFUSEs that can provide a key to the AES-256 crypto engine. This block of eFUSEs has dedicated read and write disables controlled by additional eFUSEs. The eFUSE key can be stored in plain text form (red), obfuscated form (gray), or encrypted form (black).