Main Features
- 32-bit counting up counter
- Clock source: 32.768 kHz RTC clock.
- Clock Pre-divider: programmable by 1, 32, 64, 128, or 256.
- Alarm function: Compares to a 32-bit value and issue a wakeup interrupt when it matches.
- Generates an interrupt when it wraps around.
- Wraps around up to 16 times.
