AT91M40400-25C ATMEL Corporation, AT91M40400-25C Datasheet - Page 73

• Manufacturer Part Number: AT91M40400-25C
• Description: 16/32-bit Microcontroller, 2.7V to 3.6V Operating Range
• Manufacturer: ATMEL Corporation

USART Mode Register
Name:
Access Type:
•
•
•
•
USCLKS: Clock Selection (Baud Rate Generator Input Clock)
CHRL: Character Length
Start, stop and parity bits are added to the character length.
SYNC: Synchronous Mode Select
0 = USART operates in Asynchronous Mode.
1 = USART operates in Synchronous Mode.
PAR: Parity Type
0
0
1
0
0
1
1
0
0
0
0
1
1
USCLKS
CHRL
31
23
15
---
---
7
PAR
CHMODE
X
0
1
0
1
0
1
0
0
1
1
0
1
CHRL
Selected Clock
MCKI
MCKI/8
External (SCK)
Character Length
Five bits
Six bits
Seven bits
Eight bits
0
1
0
1
x
x
30
22
14
US_MR
Read/Write
---
---
6
Parity Type
Even Parity
Odd Parity
Parity forced to 0 (Space)
Parity forced to 1 (Mark)
No parity
Multi-drop mode
29
21
13
---
---
5
NBSTOP
USCLKS
28
20
12
---
---
4
27
19
11
---
---
---
3
CLKO
PAR
26
18
10
---
---
2
AT91M40400
25
17
---
---
---
9
1
SYNC
24
16
---
---
---
8
0
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