35.20.4 UxERRIR
Note:
- Full-featured UARTs only.
| Name: | UxERRIR |
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| TXMTIF | PERIF | ABDOVF | CERIF | FERIF | RXBKIF | RXFOIF | TXCIF | ||
| Access | R/S/C | R/W/HC | R/W/S | R/W/S | R/S/C | R/W/S | R/W/S | R/W/S | |
| Reset | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Bit 7 – TXMTIF Transmit Shift Register Empty Interrupt Flag
| Value | Description |
|---|---|
| 1 | Transmit shift register is empty (Set at end of Stop bits) |
| 0 | Transmit shift register is actively shifting data |
Bit 6 – PERIF Parity Error Interrupt Flag
| Value | Name | Description |
|---|---|---|
| 1 | MODE = LIN or Parity | Unread byte at top of input FIFO has parity error |
| 0 | MODE = LIN or Parity | Unread byte at top of input FIFO does not have parity error |
| 1 | MODE = DALI Device | Unread byte at top of input FIFO received as Forward Frame |
| 0 | MODE = DALI Device | Unread byte at top of input FIFO received as Back Frame |
| 1 | MODE = Address | Unread byte at top of input FIFO received as address |
| 0 | MODE = Address | Unread byte at top of input FIFO received as data |
| x | MODE = All others | Not used |
Bit 5 – ABDOVF Auto-baud Detect Overflow Interrupt Flag
| Value | Name | Description |
|---|---|---|
| 1 | MODE = DALI | Start bit measurement overflowed counter |
| 0 | MODE = DALI | No overflow during Start bit measurement |
| 1 | MODE = All others | Baud Rate Generator overflowed during the auto-detection sequence |
| 0 | MODE = All others | Baud Rate Generator has not overflowed |
Bit 4 – CERIF Checksum Error Interrupt Flag
| Value | Name | Description |
|---|---|---|
| 1 | MODE = DALI | Stop bit detected |
| 0 | MODE = DALI | Stop bit not detected |
| x | MODE = not DALI | Not used |
Bit 3 – FERIF Framing Error Interrupt Flag
| Value | Description |
|---|---|
| 1 | Unread byte at top of input FIFO has framing error |
| 0 | Unread byte at top of input FIFO does not have framing error |
Bit 2 – RXBKIF Break Reception Interrupt Flag
| Value | Description |
|---|---|
| 1 | Break detected |
| 0 | No break detected |
Bit 1 – RXFOIF Receive FIFO Overflow Interrupt Flag
| Value | Description |
|---|---|
| 1 | Receive FIFO has overflowed |
| 0 | Receive FIFO has not overflowed |
Bit 0 – TXCIF Transmit Collision Interrupt Flag(1)
| Value | Description |
|---|---|
| 1 | Transmitted word is not equal to the word received during transmission |
| 0 | Transmitted word equals the word received during transmission |