AT91M40400-25C ATMEL Corporation, AT91M40400-25C Datasheet - Page 80

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

USART Baud Rate Generator Register
Name:
Access Type:
•
2 to 65535
CD: Clock Divisor
This register has no effect if Synchronous Mode is selected with an external clock.
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
CD
0
1
31
23
15
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7
Disables Clock
Clock Divisor bypass
Baud Rate (Asynchronous Mode) = Selected clock / (16 x CD)
Baud Rate (Synchronous Mode) = Selected clock / CD
AT91M40400
30
22
14
US_BRGR
Read/Write
---
---
6
29
21
13
---
---
5
28
20
12
---
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4
CD
CD
27
19
11
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3
26
18
10
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2
25
17
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9
1
24
16
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8
0