21.2 Features
- 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
 - One Backup Register with Retention Capability
 - Tamper Detection
- Timestamp on event or up to four inputs with debouncing
 - Active layer protection
 
 
