39.7.6 Interrupt Flag Status and Clear
| Name: | INTFLAG |
| Offset: | 0x06 |
| Reset: | 0x00 |
| Property: | - |
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| EMPTY | UNDERRUN | ||||||||
| Access | R/W | R/W | |||||||
| Reset | 0 | 0 |
Bit 1 – EMPTY Data Buffer Empty
This flag is cleared by writing a '1' to it or by writing new data to DATABUF.
This flag is set when data is transferred from DATABUF to DATA, and the DAC is ready to receive new data in DATABUF, and will generate an interrupt request if INTENCLR/SET.EMPTY is one.
Writing a '0' to this bit has no effect.
Writing a '1' to this bit will clear the Data Buffer Empty interrupt flag.
If the DAC is not set to run in standby sleep mode (CTRLA.RUNSTDBY=0) then the Data Buffer Empty (INTFLAG.EMPTY) bit will be set when exiting standby sleep mode. This flag can be ignored and cleared when necessary.
Bit 0 – UNDERRUN Underrun
This flag is cleared by writing a '1' to it.
This flag is set when a start conversion event occurs when DATABUF is empty, and will generate an interrupt request if INTENCLR/SET.UNDERRUN is one.
Writing a '0' to this bit has no effect.
Writing a '1' to this bit will clear the Underrun interrupt flag.