UxERRIR

UxERRIR

UART Error Interrupt Flag Register
Note:
  1. 1.Full-featured UARTs only.
    8  

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

Transmit Shift Register Empty Interrupt Flag

ValueDescription
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

Parity Error Interrupt Flag

ValueNameDescription
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

Auto-baud Detect Overflow Interrupt Flag

ValueNameDescription
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

Checksum Error Interrupt Flag

ValueNameDescription
1 MODE = LIN Checksum error
0 MODE = LIN No checksum error
x MODE = not LIN Not used

Bit 3 – FERIF: Framing Error Interrupt Flag

Framing Error Interrupt Flag

ValueDescription
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

Break Reception Interrupt Flag

ValueDescription
1 Break detected
0 No break detected

Bit 1 – RXFOIF: Receive FIFO Overflow Interrupt Flag

Receive FIFO Overflow Interrupt Flag

ValueDescription
1 Receive FIFO has overflowed
0 Receive FIFO has not overflowed

Bit 0 – TXCIF: Transmit Collision Interrupt Flag(1)

Transmit Collision Interrupt Flag(1)

ValueDescription
1 Transmitted word is not equal to the word received during transmission
0 Transmitted word equals the word received during transmission