13.8.6.1.4 Power Domain States and Gating
In Standby sleep mode, the Power Domain Gating technique allows for selecting the state of a PDn power domain automatically (e.g. for executing sleepwalking tasks) or manually:
- Active State
- The power domain is powered according to the performance level
- Retention State
- The main voltage supply for the power domain is switched off, while maintaining a secondary low-power supply for sequential cells. The logic context is restored when waking up.
- Off State
- The power domain is entirely powered off. The logic context is lost.