18.3.1 Power Modes
The power modes and power management of different modules of the PIC32CX-BZ3 are shown in the following table.
| Functions | Device Power Modes | |||||
|---|---|---|---|---|---|---|
| Run | Idle | SleepWalking/Dream(1) | Standby Sleep | Deep Sleep | Extreme Deep Sleep | |
| CPU | ON | Clock Gated | Clock Gated | Clock Gated | OFF | OFF |
| Peripherals | ON | Idle | On Demand | Clock Gated | OFF | OFF |
| Flash | ON | Idle | On Demand | Clock Gated | OFF | OFF |
| Core System Memory | ON | Idle | On Demand | Retention Mode | OFF | OFF |
| Radio | ON | Idle | On Demand | Clock Gated | OFF | OFF |
| DSWDT | ON | ON | ON | ON | ON | OFF |
| RTCC | ON | ON | ON | ON | ON | OFF |
| FlexRAM (SRAM) | ON | Idle | On Demand | Retention Mode | Retention Mode (On Demand) | OFF |
| XTAL(16 MHz) | ON | ON | ON | ON | OFF | OFF |
| FRC | ON | ON | On Demand | OFF | OFF | OFF |
| LPRC | ON | ON | ON | ON | ON | OFF |
| SPLL | ON | ON | On Demand | OFF | OFF | OFF |
| SOSC | ON | ON | ON | ON | ON | OFF |
Note:
- Dream (Sleep Walking) is not a mode by itself but is a companion mode to the Standby Sleep mode. This mode cannot be entered directly through a software command.
All transitions from the Run state to any of the low-power states is simply initiated by the WFI command from the CPU, however, prior to initiating the WFI command.