AURA SOM/AURA Hardware/Peripherals/Real Time Clock
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Peripheral Real Time Clock[edit | edit source]
The Real Time Clock is part of i.MX93 SoC Battery Backed Secure Module (BBSM).
Description[edit | edit source]
The Real Time Clock supports the following features:
- Can be driven by an independent clock source (other than the clock that the SoC uses)
- Clock counter does not roll over: the RTC Alarm Register represents the number of seconds, and supports time alarm as high as ~140 years
- Has a programmable timed interrupt: the RTC Alarm (from BBSM) is mapped as an interrupt to NVIC and GIC
- The RTC alarm is also a wake-up source from any low power modes
- The Secure Real Time Clock continues counting when SoC power is off
