Datasheet
329
6120F–ATARM–03-Oct-06
AT91SAM7X512/256/128 Preliminary
30.7.2 USART Mode Register
Name: US_MR
Access Type: Read/Write
• USART_MODE
• USCLKS: Clock Selection
• CHRL: Character Length.
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
USART_MODE Mode of the USART
0000Normal
0001RS485
0 0 1 0 Hardware Handshaking
0011Modem
0 1 0 0 IS07816 Protocol: T = 0
0101Reserved
0 1 1 0 IS07816 Protocol: T = 1
0111Reserved
1000IrDA
11xxReserved
USCLKS Selected Clock
00MCK
01MCK / DIV
10Reserved
11SCK
CHRL Character Length
0 0 5 bits
0 1 6 bits
1 0 7 bits
1 1 8 bits