ATMEGA48V_11 ATMEL [ATMEL Corporation], ATMEGA48V_11 Datasheet - Page 196
ATMEGA48V_11
Manufacturer Part Number
ATMEGA48V_11
Description
8-bit Atmel Microcontroller with 4/8/16K Bytes In-System Programmable Flash
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.ATMEGA48V_11.pdf
(377 pages)
- Current page: 196 of 377
- Download datasheet (9Mb)
Table 20-10. Examples of UBRRn settings for commonly used oscillator frequencies.
Note:
2545T–AVR–05/11
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)
1. UBRRn = 0, error = 0.0%
f
UBRRn
osc
95
47
23
15
11
230.4Kbps
7
5
3
2
1
0
0
–
–
U2Xn = 0
= 3.6864MHz
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%
–
–
UBRRn
191
95
47
31
23
15
11
460.8Kbps
7
5
3
1
1
0
–
U2Xn = 1
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
UBRRn
osc
103
51
25
16
12
8
6
3
2
1
0
0
–
–
U2Xn = 0
= 4.0000MHz
250Kbps
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%
–
–
UBRRn
207
103
51
34
25
16
12
8
6
3
1
1
0
–
U2Xn = 1
0.5Mbps
Error
-0.8%
-3.5%
-7.0%
0.0%
0.2%
0.2%
0.2%
0.2%
2.1%
0.2%
8.5%
8.5%
0.0%
–
f
UBRRn
osc
191
95
47
31
23
15
11
460.8Kbps
7
5
3
1
1
0
–
U2Xn = 0
= 7.3728MHz
ATmega48/88/168
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%
–
UBRRn
383
191
95
63
47
31
23
15
11
921.6Kbps
7
3
3
1
0
U2Xn = 1
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%
196
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