ISD94100 Series Technical Reference Manual
Sep 9, 2019
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Rev1.09
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0 = No Break interrupt is generated.
1 = Break interrupt is generated.
Note:
This bit can be cleared by writing “1” to it.
[5]
FEF
Framing Error Flag
This bit is set to logic 1 whenever the received character does not have a valid “stop bit”
(that is, the stop bit following the last data bit or parity bit is detected as logic 0).
0 = No framing error is generated.
1 = Framing error is generated.
Note:
This bit can be cleared by writing “1” to it.
[4]
PEF
Parity Error Flag
This bit is set to logic 1 whenever the received character does not have a valid “parity bit”.
0 = No parity error is generated.
1 = Parity error is generated.
Note:
This bit can be cleared by writing “1” to it.
[3]
ADDRDETF
RS-485 Address Byte Detect Flag
0 = Receiver detects a data that is not an address bit (bit 9 =’0’).
1 = Receiver detects a data that is an address bit (bit 9 =’1’).
Note1:
This field is used for RS-485 function mode and ADDRDEN (UART_ALTCTL[15])
is set to 1 to enable Address detection mode.
Note2:
This bit can be cleared by writing “1” to it.
[2]
ABRDTOIF
Auto-baud Rate Detect Time-out Interrupt Flag
This bit is set to logic “1” in Auto-baud Rate Detect mode when the baud rate counter is
overflow.
0 = Auto-baud rate counter is underflow.
1 = Auto-baud rate counter is overflow.
Note:
This bit can be cleared by writing “1” to it.
[1]
ABRDIF
Auto-baud Rate Detect Interrupt Flag
This bit is set to logic “1” when auto-baud rate detect function is finished.
0 = Auto-baud rate detect function is not finished.
1 = Auto-baud rate detect function is finished.
Note:
This bit can be cleared by writing “1” to it.
[0]
RXOVIF
RX Overflow Error Interrupt Flag
This bit is set when RX FIFO overflow.
If the number of bytes of received data is greater than RX_FIFO (UART_DAT) size 16
bytes, this bit will be set.
0 = RX FIFO is not overflow.
1 = RX FIFO is overflow.
Note:
This bit can be cleared by writing “1” to it.