AT91SAM7X256 Datasheet, PDF (333/637 Pages) ATMEL Corporation – AT91 ARM Thumb-based Microcontrollers

AT91SAM7X256/128 Preliminary
31.7.2 USART Mode Register
Name:
US_MR
Access Type:
Read/Write
31
30
ONEBIT
–
29
28
27
MAN
FILTER
–
26
25
24
MAX_ITERATION
23
22
21
20
–
VAR_SYNC
DSNACK
INACK
19
OVER
18
CLKO
17
MODE9
16
MSBF
15
14
CHMODE
13
12
NBSTOP
11
10
PAR
9
8
SYNC
7
6
5
4
3
2
1
0
CHRL
USCLKS
USART_MODE
• USART_MODE
USART_MODE
0
0
0
0
0
0
0
0
1
0
0
1
0
1
0
0
1
0
0
1
1
0
1
1
1
0
0
1
1
x
• USCLKS: Clock Selection
Mode of the USART
0
Normal
1
RS485
0
Hardware Handshaking
1
Modem
0
IS07816 Protocol: T = 0
1
Reserved
0
IS07816 Protocol: T = 1
1
Reserved
0
IrDA
x
Reserved
USCLKS
0
0
0
1
1
0
1
1
Selected Clock
MCK
MCK / DIV
Reserved
SCK
6120D–ATARM–02-Feb-06
333