Power Modes and States

Versal ACAP Technical Reference Manual (AM011)

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

The RPU MPCore includes several power modes and power island states.

Power Modes

The CPUs include three power management states.
  • Run
  • Standby
  • Shutdown
Each power level provides decreasing levels of power consumption, but increases the entry and exit requirements.

The following table lists the power management modes.

Table 1. Power Management Modes
Power Mode CPU Clock Power State TCM Memory Retention Exit to Run Mode Description
Run Active On Yes ~
Standby When idle On Yes Pipeline restart
Shutdown Inactive Off No Pipeline restart restores registers and configuration from memory, invalidates caches, and reinitializes caches and TCMs

Power Islands

The RPU MPCore includes several power islands as shown in the Power Diagram of the power chapter.

Note: All TCM power islands must be powered up to access any of the TCMs.