Datasheet

 2017 Microchip Technology Inc. DS60001516A-page 477
SAM9G20
31.7.2 USART Mode Register
Name:US_MR
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
ONEBIT MODSYNC MAN FILTER – MAX_ITERATION
23 22 21 20 19 18 17 16
– VAR_SYNC DSNACK INACK OVER CLKO MODE9 MSBF
15 14 13 12 11 10 9 8
CHMODE NBSTOP PAR SYNC
76543210
CHRL USCLKS USART_MODE
USART_MODE Mode of the USART
0000Normal
0001RS485
0 0 1 0 Hardware Handshaking
0 0 1 1 Modem
0 1 0 0 IS07816 Protocol: T = 0
0 1 1 0 IS07816 Protocol: T = 1
1000IrDA
Others Reserved
USCLKS Selected Clock
00MCK
0 1 MCK/DIV (DIV = 8)
10Reserved
11SCK
CHRL Character Length
0 0 5 bits
0 1 6 bits
1 0 7 bits
1 1 8 bits