24.8.6 Interrupt Flag Status and Clear in COUNT16 mode (CTRLA.MODE=1)
| Symbol | Description | Symbol | Description | Symbol | Description |
|---|---|---|---|---|---|
| R | Readable bit | HC | Cleared by Hardware | (Grey cell) | Unimplemented |
| W | Writable bit | HS | Set by Hardware | X | Bit is unknown at Reset |
| K | Write to clear | S | Software settable bit | — | — |
| Name: | INTFLAG |
| Offset: | 0x0C |
| Reset: | 0x0000 |
| Property: | - |
| Bit | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | |
| OVF | TAMPER | CMP3 | CMP2 | CMP1 | CMP0 | ||||
| Access | R/W | R/W | R/W | R/W | R/W | R/W | |||
| Reset | 0 | 0 | 0 | 0 | 0 | 0 |
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| PER7 | PER6 | PER5 | PER4 | PER3 | PER2 | PER1 | PER0 | ||
| Access | R/W | R/W | R/W | R/W | R/W | R/W | R/W | R/W | |
| Reset | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Bit 15 – OVF Overflow
This flag is cleared by writing a '1' to the flag.
This flag is set on the next CLK_RTC_CNT cycle after an overflow condition occurs, and an interrupt request will be generated if INTENCLR/SET.OVF is '1'.
Writing a '0' to this bit has no effect.
Writing a '1' to this bit clears the Overflow interrupt flag.
Bit 14 – TAMPER Tamper
This flag is set after a tamper condition occurs, and an interrupt request will be generated if INTENCLR.TAMPER/ INTENSET.TAMPER is one.
Writing a '0' to this bit has no effect.
Writing a one to this bit clears the Tamper interrupt flag.
Bits 8, 9, 10, 11 – CMPn Compare n [n = 3..0]
This flag is cleared by writing a '1' to the flag.
This flag is set on the next CLK_RTC_CNT cycle after a match with the compare condition, and an interrupt request will be generated if INTENCLR/SET.COMPn is one.
Writing a '0' to this bit has no effect.
Writing a '1' to this bit clears the Compare n interrupt flag.
Bits 0, 1, 2, 3, 4, 5, 6, 7 – PERn Periodic Interval n [n = 7..0]
This flag is cleared by writing a '1' to the flag.
This flag is set on the 0-to-1 transition of prescaler bit [n+2], and an interrupt request will be generated if INTENCLR/SET.PERn is one.
Writing a '0' to this bit has no effect.
Writing a '1' to this bit clears the Periodic Interval n interrupt flag.