24.2 Features

The following are key features of the RTC module:

• 32-bit counter with 10-bit prescaler
• Multiple clock sources
• 32-bit or 16-bit counter mode
• Two 32-bit or four 16-bit compare values
• Clock/Calendar mode
  • Time in seconds, minutes, and hours (12/24)
  • Date in day of month, month, and year
  • Leap year correction
• Digital prescaler correction/tuning for increased accuracy
• Overflow, alarm/compare match and prescaler interrupts and events
  • Optional clear on alarm/compare match
• Four general purpose registers
• Tamper Detection
  • Up to 8 static tamper inputs with programmable level detection
  • Up to 8 inputs and 8 outputs dynamic tamper (Active layer protection)
  • Support for any kinds of static and dynamic combinations
  • Timestamp on tampers event