26.7.3 Interrupt Flag Status and Clear
Note: Subsequent to an interrupt flag
being cleared, the flag must be read back to verify the clear before exiting the
ISR. Failure to do this can result in duplicate interrupts.
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: | 0x0008 |
Reset: | 0x00000000 |
Property: | - |
Bit | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | |
Access | |||||||||
Reset |
Bit | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | |
Access | |||||||||
Reset |
Bit | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | |
ADDVREGRDY | |||||||||
Access | R/W | ||||||||
Reset | 0 |
Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
BORVDDUSB | LVDRDY | LVDET | |||||||
Access | R/W | R/W | R/W | ||||||
Reset | 0 | 0 | 0 |
Bit 8 – ADDVREGRDY Additional Regulator Ready
Set by hardware when the Additional Regulator is ready and the output voltage is correct.
Write one to clear the bit.
Bit 5 – BORVDDUSB Brown-Out detected for a VDD_USB
Set by hardware when a Brown-Out has been detected on the corresponding VDD_USB.
Write one to clear the corresponding bit.
Bit 1 – LVDRDY Low Voltage Detector Ready
Set by hardware the Low Voltage Detector is ready to operate.
Write one to clear the corresponding bit.
Bit 0 – LVDET Low Voltage Detected
Set by hardware if VDDIO crosses the threshold voltage in a “good” direction according to LVD.DIR.
Write one to clear the corresponding bit.