Atmel Evaluation Kit AT91SAM9M10-G45-EK AT91SAM9M10-G45-EK Hoja De Datos

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AT91SAM9M10-G45-EK
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SAM9M10 [DATASHEET]
6355F–ATARM–12-Mar-13
 
29.6.6
Debug  Unit  Status  Register
Name:
 DBGU_SR
Address:
0xFFFFEE14
Access:
 Read-only 
• 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
0 = The buffer empty signal from the transmitter PDC channel is inactive.
31
30
29
28
27
26
25
24
COMMRX
COMMTX
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
RXBUFF
TXBUFE
TXEMPTY
7
6
5
4
3
2
1
0
PARE
FRAME
OVRE
ENDTX
ENDRX
TXRDY
RXRDY