Operating Modes

Versal ACAP Technical Reference Manual (AM011)

Document ID
AM011
Release Date
2022-04-26
Revision
1.4 English

The RPU MPCore can operate in several modes.

  • Dual-processor performance split mode
    • Each RPU core operates independently
    • Each RPU core has its own caches and TCMs
  • Safety lock-step mode
    • Both RPU cores execute the same code in lock-step, clock-for-clock
    • The outputs from the lead RPU, core 0, are checked by core 1
    • Discrepancies are flagged as a system error
  • Single CPU mode
    • If desired, RPU core 0 can be held in reset while core 1 runs normally with access to all 256 MBs of the TCM

The processor does not support dynamic configuration. Switching between the lock-step and dual-processor configurations is only permitted immediately after a processor reset.