SAM7X128_14 Datasheet, PDF (210/662 Pages) ATMEL Corporation – ARM-based Flash MCU

26.5.6 Debug Unit Status Register
Name:
DBGU_SR
Access Type:
Read-only
31
30
29
COMMRX
COMMTX
–
23
22
21
–
–
–
15
14
13
–
–
–
7
PARE
6
FRAME
5
OVRE
28
–
20
–
12
RXBUFF
4
ENDTX
27
–
19
–
11
TXBUFE
3
ENDRX
26
25
24
–
–
–
18
17
16
–
–
–
10
9
8
–
TXEMPTY
–
2
1
0
–
TXRDY
RXRDY
• RXRDY: Receiver Ready
0 = No character has been received since the last read of the DBGU_RHR or the receiver is disabled.
1 = At least one complete character has been received, transferred to DBGU_RHR and not yet read.
• TXRDY: Transmitter Ready
0 = A character has been written to DBGU_THR and not yet transferred to the Shift Register, or the transmitter is disabled.
1 = There is no character written to DBGU_THR not yet transferred to the Shift Register.
• ENDRX: End of Receiver Transfer
0 = The End of Transfer signal from the receiver Peripheral Data Controller channel is inactive.
1 = The End of Transfer signal from the receiver Peripheral Data Controller channel is active.
• ENDTX: End of Transmitter Transfer
0 = The End of Transfer signal from the transmitter Peripheral Data Controller channel is inactive.
1 = The End of Transfer signal from the transmitter Peripheral Data Controller channel is active.
• OVRE: Overrun Error
0 = No overrun error has occurred since the last RSTSTA.
1 = At least one overrun error has occurred since the last RSTSTA.
• FRAME: Framing Error
0 = No framing error has occurred since the last RSTSTA.
1 = At least one framing error has occurred since the last RSTSTA.
• PARE: Parity Error
0 = No parity error has occurred since the last RSTSTA.
1 = At least one parity error has occurred since the last RSTSTA.
• TXEMPTY: Transmitter Empty
0 = There are characters in DBGU_THR, or characters being processed by the transmitter, or the transmitter is disabled.
1 = There are no characters in DBGU_THR and there are no characters being processed by the transmitter.
• TXBUFE: Transmission Buffer Empty
SAM7X Series [DATASHEET]
6120K–ATARM–11-Feb-14
210