Interrupt Control
| Bit7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| CMP | OVF | ||||||
| AccessR | R | R | R | R | R | R/W | R/W |
| Reset0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Compare Match Interrupt Enable
Enable interrupt on compare match, i.e. when the Counter value (RTC.CNT) matches the Compare value (RTC.CMP).
Overflow Interrupt Enable
Enable interrupt on counter overflow, i.e. when the Counter value (RTC.CNT) matched the Period value (RTC.PER) and wraps around to zero.