Hello there!

 

PSoC 6 device family provides the functional safety to protect a system crash, like the LVD(low voltage detection), the BOD(brown-out Detection), the watchdog, etc. The LVD block can protect the system from a serious power loss as one of the safety function.

 

The key features are:

  • Monitoring the main power supply voltage(VDDD)

The LVD monitors VDDD and it simply generates an interrupt.

 

  • Interrupt generation

The LVD generates an interrupt to cause the system to take preventive measures/do some housekeeping before energy runs out.

 

  • User programmable trip voltage

The trip point of LVD is programmable.

 

  • Automatic disabling in the deep sleep and hibernate mode

The LVD is disabled when entering the ultra-low power modes to prevent false interrupts during wakeup.

 

  • No force system reset

The LVD does not reset system, unlike the function of the BOD circuits, but firmware may initiate a system reset if desired.

 

  • Interrupt edge selection

The LVD can monitor not only falling edge but also rising edge. The rising edge can utilize to check the VDDD settling when system boots up.

 

Thank you!