32.6 Wake-Up Time

The following table shows wake-up time from various sleep modes with various system clock sources. It also shows the start-up time from reset with no Unified Programming Interface (UPDI) connection active and with 0 ms start-up time (SUT) setting.

Table 32-7. Start-Up and Wake-Up Time
SymbolDescriptionClock SourcePDIV DivisionfCLK_CPUVDD Min.Typ.Max.Unit
tstartupThe start-up time from the release of any Reset source. Execution of first instruction. (Excluding CRCSCAN)AnyAnyAnyAny-200-µs
twakeup(1)Wake-up from Idle OSC20M FREQSEL = 0x2120 MHz5V-1-
210 MHz3V-2-
45 MHz2V-4-
OSC20M FREQSEL = 0x1116 MHz5V-1.2-
28 MHz3V-2.4-
OSCULP32K132.768 kHz700
Wake-up time from Standby or Power-down when clock source is stoppedOSC20M FREQSEL = 0x2120 MHz5V-12-
210 MHz3V-13-
45 MHz2V-15-
OSC20M FREQSEL = 0x1116 MHz5V-16-
28 MHz3V-15-
OSCULP32K132.768 kHz-750-
Note:
  1. The wake-up time is the time from the wake-up request is given until the peripheral clock is available on the clock output (CLKOUT) pin. All peripherals and modules start execution from the first clock cycle, except the CPU that is halted for four clock cycles before program execution starts.
Figure 32-4. Wake-Up Time Definition