The RPU MPCore includes several power modes and power island states.
Power Modes
The CPUs include three power management states.
- Run
- Standby
- Shutdown
The following table lists the 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.