Is the Backup Real Time Counter (BURTC) supported on the Lyra (22) and/or Lyra 24 hardware platforms?

Answer

No, the Backup Real Time Counter (BURTC) is not available in either the Lyra (22) or Lyra 24 series, both in terms of software and hardware. The BURTC is a timer that supports timekeeping across all energy modes, including EM4, with a total current consumption of less than 0.5 μA. It includes a 32-bit counter and can be clocked by a 32.768 kHz crystal oscillator, a 32.768 kHz RC oscillator, or a 2 kHz ultra-low-frequency RC oscillator.