54.8 Wake-Up Time

Conditions:

  • VDD = 3.3V
  • LDO Regulation mode (default mode)
  • CPU clock = DFLL48 in open loop (default configuration)
  • NVM automatic wait state and cache enabled (default configuration)

Measurement Methods

For IDLE and STANDBY, the exit of mode is done through asynchronous EIC wake-up. The wake-up time is measured between the toggle of the EIC pin and the set of the IO pin done by the first executed instructions in EIC interrupt handler.

For Backup and hibernate, the exit of mode is done through RTC wake-up. The wake-up time is measured between the toggle of the RTC pin (SUPC_BKOUT_RTCTGL) and the set of the IO done by the first executed instructions after reset.

For OFF mode, the exit of mode is done through Reset pin, the time is measured between the rising edge of the RESETN signal and the set of the IO done by the first executed instructions after Reset.

Table 54-11. Wake-Up Timing
Sleep ModeConditionsTypUnit
IDLE 230ns
STANDBYSTDBYCFG.FASTWKUP = 0110µs
STDBYCFG.FASTWKUP = 1 Fast Wakeup is enabled on NVM.92µs
STDBYCFG.FASTWKUP = 2 Fast Wakeup is enabled on the main voltage regulator.25µs
STDBYCFG.FASTWKUP = 3 Fast Wakeup is enabled on both NVM and MAINVREG.5µs
Hibernate 320µs
BACKUP 350µs
OFF 210µs