Rainbow Electronics AT91CAP9S250A - Manual (Page 562)

562
6264A–CAP–21-May-07
AT91CAP9S500A/AT91CAP9S250A
35.7.2 USART Mode Register
Name: US_MR
Access Type: Read/Write
• USART_MODE
• USCLKS: Clock Selection
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
7 6 5 4 3 2 1 0
CHRL USCLKS USART_MODE
USART_MODE Mode of the USART
0 0 0 0 Normal
0 0 0 1 RS485
0 0 1 0 Hardware Handshaking
0 0 1 1 Reserved
0 1 0 0 IS07816 Protocol: T = 0
0 1 0 1 Reserved
0 1 1 0 IS07816 Protocol: T = 1
0 1 1 1 Reserved
1 0 0 0 IrDA
1 1 x x Reserved
USCLKS Selected Clock
0 0 MCK
0 1 MCK/DIV (DIV = 8)
1 0 Reserved
1 1 SCK