Datasheet

459
SAM9261 [DATASHEET]
Atmel-6062O-ATARM-SAM9261-Datasheet_21-Jun-16
31.7.2 USART Mode Register
Name: US_MR
Address: 0xFFFB0004 (0), 0xFFFB4004 (1), 0xFFFB8004 (2)
Access: Read/Write
• USART_MODE
• USCLKS: Clock Selection
• CHRL: Character Length.
• SYNC: Synchronous Mode Select
0: USART operates in Asynchronous Mode.
1: USART operates in Synchronous Mode.
31 30 29 28 27 26 25 24
– – – FILTER – MAX_ITERATION
23 22 21 20 19 18 17 16
– – DSNACK INACK OVER CLKO MODE9 MSBF
15 14 13 12 11 10 9 8
CHMODE NBSTOP PAR SYNC
76543210
CHRL USCLKS USART_MODE
Value Mode of the USART
0000Normal
0001RS485
0010Hardware Handshaking
0100IS07816 Protocol: T = 0
0110IS07816 Protocol: T = 1
1000IrDA
Others Reserved
Value Selected Clock
00MCK
0 1 MCK/DIV (DIV = 8)
10Reserved
11SCK
Value Character Length
0 0 5 bits
0 1 6 bits
1 0 7 bits
1 1 8 bits