Power Mode Wakeup Summary - Infineon PSoC 4000S Manual

PSoC™ 4 MCU low-power modes and power reduction techniques

Power mode wakeup summary

4 Power mode wakeup summary
All power modes exit upon two conditions: power cycling or driving the reset input LOW. All states are lost in
either case for all power modes.
exit the current low-power mode and return to active mode.
Table 3 Low-power modes and wakeup sources
Low-power mode
Sleep
Deep sleep
Hibernate*
Stop*
ModusToolbox™ software environment does not support hibernate or stop modes.
*
The WDT can be configured to generate both interrupts and resets at different intervals. See the technical reference
5
manual (TRM) for the applicable PSoC™ 4 MCU device family.
XRES triggers a full system reset. All states including frozen I/Os are lost. In this case, the cause of wakeup is not
6
detectable after the device restarts.
Application Note
Table 3 provides a summary of the events and hardware that can be used to
Wakeup source
Any interrupt source
Any reset source
GPIO interrupt
Low-power comparator
CTB/CTBm comparator
SCB (I C address match)
2
WDT
5
XRES (external reset pin)
GPIO interrupt
Low-power comparator
XRES (external reset pin)
WAKEUP pin (P0[7])
XRES (external reset pin)
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Wakeup action
Interrupt
Device reset
Interrupt
Interrupt
Interrupt
Interrupt
Interrupt or device reset
Device reset
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Device reset
Device reset
Device reset
6
Device reset
6 Device reset
001-86233 Rev. *I
2021-11-04