SAM3SD8B Atmel Corporation, SAM3SD8B Datasheet - Page 756
SAM3SD8B
Manufacturer Part Number
SAM3SD8B
Description
Manufacturer
Atmel Corporation
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32.8.6
Name:
Address:
Access:
• RXRDY: Receiver Ready
0: No complete character has been received since the last read of US_RHR or the receiver is disabled. If characters were
being received when the receiver was disabled, RXRDY changes to 1 when the receiver is enabled.
1: At least one complete character has been received and US_RHR has not yet been read.
• TXRDY: Transmitter Ready
0: A character is in the US_THR waiting to be transferred to the Transmit Shift Register, or an STTBRK command has been
requested, or the transmitter is disabled. As soon as the transmitter is enabled, TXRDY becomes 1.
1: There is no character in the US_THR.
• RXBRK: Break Received/End of Break
0: No Break received or End of Break detected since the last RSTSTA.
1: Break Received or End of Break detected since the last RSTSTA.
• ENDRX: End of Receiver Transfer
0: The End of Transfer signal from the Receive PDC channel is inactive.
1: The End of Transfer signal from the Receive PDC channel is active.
• ENDTX: End of Transmitter Transfer
0: The End of Transfer signal from the Transmit PDC channel is inactive.
1: The End of Transfer signal from the Transmit PDC 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 stop bit has been detected low since the last RSTSTA.
1: At least one stop bit has been detected low since the last RSTSTA.
11090A–ATARM–10-Feb-12
11090A–ATARM–10-Feb-12
PARE
CTS
31
23
15
–
–
7
USART Channel Status Register
FRAME
DCD
30
22
14
US_CSR
0x40024014 (0), 0x40028014 (1), 0x4002C014 (2)
Read-only
–
–
6
NACK
OVRE
DSR
29
21
13
–
5
RXBUFF
ENDTX
28
20
12
RI
–
4
TXBUFE
ENDRX
CTSIC
27
19
11
–
3
ITER/UNRE
RXBRK
DCDIC
26
18
10
–
2
TXEMPTY
TXRDY
DSRIC
SAM3S8/SD8
SAM3S8/SD8
25
17
–
9
1
TIMEOUT
MANERR
RXRDY
RIIC
24
16
8
0
756
756
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