atmega32u4-16mu ATMEL Corporation, atmega32u4-16mu Datasheet - Page 230
atmega32u4-16mu
Manufacturer Part Number
atmega32u4-16mu
Description
Atmega32u4 8-bit Avr Microcontroller With 32k Bytes Of Isp Flash And Usb Controller
Manufacturer
ATMEL Corporation
Datasheet
1.ATMEGA32U4-16MU.pdf
(431 pages)
- Current page: 230 of 431
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Table 19-10. Examples of UBRRn Settings for Commonly Used Oscillator Frequencies (Continued)
1.
230
Baud
Rate
(bps)
2400
4800
9600
14.4k
19.2k
28.8k
38.4k
57.6k
76.8k
115.2k
230.4k
250k
0.5M
1M
Max.
(1)
UBRR = 0, Error = 0.0%
ATmega32U4
f
U2Xn = 0
UBRR
osc
95
47
23
15
11
7
5
3
2
1
0
0
–
–
230.4 kbps
= 3.6864 MHz
Error
-7.8%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
–
–
U2Xn = 1
UBRR
191
95
47
31
23
15
11
7
5
3
1
1
0
–
460.8 kbps
Error
-7.8%
-7.8%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
–
f
U2Xn = 0
UBRR
osc
103
51
25
16
12
8
6
3
2
1
0
0
–
–
= 4.0000 MHz
250 kbps
Error
-3.5%
-7.0%
0.2%
0.2%
0.2%
2.1%
0.2%
8.5%
8.5%
8.5%
8.5%
0.0%
–
–
U2Xn = 1
UBRR
207
103
51
34
25
16
12
8
6
3
1
1
0
–
0.5 Mbps
Error
-0.8%
-3.5%
-7.0%
0.2%
0.2%
0.2%
0.2%
2.1%
0.2%
8.5%
8.5%
0.0%
0.0%
–
f
U2Xn = 0
UBRR
osc
191
95
47
31
23
15
11
7
5
3
1
1
0
–
460.8 kbps
= 7.3728 MHz
Error
-7.8%
-7.8%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
–
UBRR
U2Xn = 1
383
191
95
63
47
31
23
15
11
7
3
3
1
0
921.6 kbps
7766A–AVR–03/08
Error
-7.8%
-7.8%
-7.8%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
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