Datasheet

26.8.8 Status
Name: STATUS
Offset: 0x1A
Reset: 0x0000
Property: -
Bit 15 14 13 12 11 10 9 8
Access
Reset
Bit 7 6 5 4 3 2 1 0
TXE COLL ISF CTS BUFOVF FERR PERR
Access
R/W R/W R/W R R/W R/W R/W
Reset 0 0 0 0 0 0 0
Bit 6 – TXE Transmitter Empty
This bit will always read back as zero.
Writing '0' to this bit has no effect.
Writing '1' to this bit will clear it.
Bit 5 – COLL Collision Detected
This bit is cleared by writing '1' to the bit or by disabling the receiver.
This bit is set when collision detection is enabled (CTRLB.COLDEN) and a collision is detected.
Writing '0' to this bit has no effect.
Writing '1' to this bit will clear it.
Bit 4 – ISF Inconsistent Sync Field
This bit is cleared by writing '1' to the bit or by disabling the receiver.
This bit is set when the frame format is set to auto-baud (CTRLA.FORM) and a sync field not equal to
0x55 is received.
Writing '0' to this bit has no effect.
Writing '1' to this bit will clear it.
Bit 3 – CTS Clear to Send
This bit indicates the current level of the CTS pin when flow control is enabled (CTRLA.TXPO).
Writing '0' to this bit has no effect.
Writing '1' to this bit has no effect.
Bit 2 – BUFOVF Buffer Overflow
Reading this bit before reading the Data register will indicate the error status of the next character to be
read.
SAM D21 Family
SERCOM USART
© 2018 Microchip Technology Inc.
Datasheet Complete
DS40001882D-page 502