AT91M40400 View Datasheet(PDF) - Atmel Corporation
Part Name
Description
MFG CO.
'AT91M40400' PDF : 116 Pages View PDF
USART Baud Rate Generator Register
Name:
Access Type:
US_BRGR
Read/Write
31
30
29
28
27
26
25
24
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23
22
21
20
19
18
17
16
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15
14
13
12
11
10
9
8
CD
7
6
5
4
3
2
1
0
CD
• CD: Clock Divisor
This register has no effect if Synchronous Mode is selected with an external clock.
CD
0
1
2 to 65535
Disables Clock
Clock Divisor bypass
Baud Rate (Asynchronous Mode) = Selected clock / (16 x CD)
Baud Rate (Synchronous Mode) = Selected clock / CD
Note: In Synchronous Mode, the value programmed must be even to ensure a 50:50 mark:space ratio.
Note: Clock divisor bypass (CD = 1) must not be used when internal clock MCKI is selected (USCLKS = 0).
80
AT91M40400
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