Atmel Evaluation Kit AT91SAM9X25-EK AT91SAM9X25-EK Data Sheet
Product codes
AT91SAM9X25-EK
845
SAM9X25 [DATASHEET]
11054E–ATARM–10-Mar-2014
• CHRL: Character Length.
• SYNC: Synchronous Mode Select
0: USART operates in Asynchronous Mode.
1: USART operates in Synchronous Mode.
• PAR: Parity Type
• NBSTOP: Number of Stop Bits
• CHMODE: Channel Mode
• MSBF: Bit Order
0: Least Significant Bit is sent/received first.
1: Most Significant Bit is sent/received first.
• MODE9: 9-bit Character Length
0: CHRL defines character length.
1: 9-bit character length.
Value
Name
Description
0
5_BIT
Character length is 5 bits
1
6_BIT
Character length is 6 bits
2
7_BIT
Character length is 7 bits
3
8_BIT
Character length is 8 bits
Value
Name
Description
0
EVEN Even
parity
1
ODD
Odd parity
2
SPACE
Parity forced to 0 (Space)
3
MARK
Parity forced to 1 (Mark)
4
NO
No parity
6
MULTIDROP
Multidrop mode
Value
Name
Description
0
1_BIT
1 stop bit
1
1_5_BIT
1.5 stop bit (SYNC = 0) or reserved (SYNC = 1)
2
2_BIT
2 stop bits
Value
Name
Description
0
NORMAL
Normal Mode
1
AUTOMATIC
Automatic Echo. Receiver input is connected to the TXD pin.
2
LOCAL_LOOPBACK
Local Loopback. Transmitter output is connected to the Receiver Input.
3
REMOTE_LOOPBACK
Remote Loopback. RXD pin is internally connected to the TXD pin.