AT91SAM7S64C-AU View Datasheet(PDF) - Atmel Corporation

Part Name

Description

Manufacturer

AT91SAM7S64C-AU

AT91SAM ARM-based Flash MCU

Atmel Corporation 

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

SAM7S Series [DATASHEET]

6175M–ATARM–26-Oct-12

230

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