ATMEga64L ATMEL Corporation, ATMEga64L Datasheet - Page 192

• Manufacturer Part Number: ATMEga64L
• Description: 8-bit AVR Microcontroller with 64K Bytes In-System Programmable Flash
• Manufacturer: ATMEL Corporation

Table 82. Examples of UBRR Settings for Commonly Used Oscillator Frequencies
1.
192
Baud
Rate
(bps)
2400
4800
9600
14.4k
19.2k
28.8k
38.4k
57.6k
76.8k
115.2k
230.4k
250k
Max
(1)
UBRR = 0, Error = 0.0%
ATmega64(L)
UBRR
25
12
6
3
2
1
1
0
–
–
–
–
62.5 kbps
U2X = 0
f
-18.6%
osc
-7.0%
Error
0.2%
0.2%
8.5%
8.5%
8.5%
8.5%
–
–
–
–
= 1.0000 MHz
UBRR
51
25
12
8
6
3
2
1
1
0
–
–
125 kbps
U2X = 1
-18.6%
-3.5%
-7.0%
Error
0.2%
0.2%
0.2%
8.5%
8.5%
8.5%
8.5%
–
–
UBRR
47
23
11
7
5
3
2
1
1
0
–
–
115.2 kbps
U2X = 0
f
-25.0%
osc
Error
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
–
–
= 1.8432 MHz
UBRR
95
47
23
15
11
7
5
3
2
1
0
–
230.4 kbps
U2X = 1
Error
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
–
UBRR
51
25
12
8
6
3
2
1
1
0
–
–
125 kbps
U2X = 0
f
-18.6%
osc
-3.5%
-7.0%
Error
8.5%
8.5%
8.5%
0.2%
0.2%
0.2%
8.5%
–
–
= 2.0000 MHz
UBRR
103
51
25
16
12
8
6
3
2
1
–
0
2490G–AVR–03/04
250 kbps
U2X = 1
-3.5%
-7.0%
Error
0.2%
0.2%
0.2%
2.1%
0.2%
8.5%
8.5%
8.5%
0.0%
–