EFR32FG12 Datasheet, PDF (35/183 Pages) –

4.1.6 Wake Up Times
EFR32FG12 Flex Gecko Proprietary Protocol SoC Family Data Sheet
Electrical Specifications
Table 4.9. Wake Up Times
Parameter
Symbol
Test Condition
Min
Typ
Max
Unit
Wakeup time from EM1
t_{EM1_WU}
—
3
—
AHB
Clocks
Wake up from EM2
t_{EM2_WU}
Code execution from flash
Code execution from RAM
—
10.1
—
μs
—
3.2
—
μs
Wake up from EM3
t_{EM3_WU}
Code execution from flash
Code execution from RAM
—
10.1
—
μs
—
3.2
—
μs
Wake up from EM4H¹
t_{EM4H_WU}
Executing from flash
—
80
—
μs
Wake up from EM4S¹
t_{EM4S_WU}
Executing from flash
—
291
—
μs
Time from release of reset t_RESET
source to first instruction ex-
ectution
Soft Pin Reset released
Any other reset released
—
43
—
μs
—
350
—
μs
Power mode scaling time
t_SCALE
VSCALE0 to VSCALE2, HFCLK =
—
19 MHz^{4 2}
31.8
—
μs
VSCALE2 to VSCALE0, HFCLK =
—
4.3
—
μs
19 MHz³
Note:
1. Time from wakeup request until first instruction is executed. Wakeup results in device reset.
2. VSCALE0 to VSCALE2 voltage change transitions occur at a rate of 10 mV/μs for approximately 20 μs. During this transition,
peak currents will be dependent on the value of the DECOUPLE output capacitor, from 35 mA (with a 1 μF capacitor) to 70 mA
(with a 2.7 μF capacitor).
3. Scaling down from VSCALE2 to VSCALE0 requires approximately 2.8 μs + 29 HFCLKs.
4. Scaling up from VSCALE0 to VSCALE2 requires approximately 30.3 μs + 28 HFCLKs.
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