AT90CAN128-16AE ATMEL Corporation, AT90CAN128-16AE Datasheet - Page 198

• Manufacturer Part Number: AT90CAN128-16AE
• Description: 8-bit Avr Microcontroller With 128K Bytes of Isp Flash And CAN Controller.flash (Kbytes) 128 Vcc (V) 2.7-5.5 EEPROM (Kbytes) 4 SRAM (bytes) 4K CAN (mess. Obj.) 15
• Manufacturer: ATMEL Corporation

Table 87. Examples of UBRRn Settings for Commonly Frequencies (Continued)
1.
198
Max.
115.2k
230.4k
Baud
(bps)
14.4k
19.2k
28.8k
38.4k
57.6k
76.8k
2400
4800
9600
Rate
250k
500k
1M
(1)
UBRRn = 0, Error = 0.0%
UBRRn
AT90CAN128
312
155
77
51
38
25
19
12
9
6
2
2
–
–
U2Xn = 0
750 kbps
f
Error
clk
11.3%
-0.2%
-2.5%
-2.7%
-8.9%
0.2%
0.2%
0.2%
0.2%
0.2%
0.2%
0.0%
io
–
–
= 12.0000 MHz
UBRRn
624
312
155
103
77
51
38
25
19
12
6
5
2
–
U2Xn = 1
1.5 Mbps
Error
-0.2%
-2.5%
-8.9%
0.0%
0.2%
0.2%
0.2%
0.2%
0.2%
0.2%
0.2%
0.0%
0.0%
–
UBRRn
383
191
95
63
47
31
23
15
11
7
3
3
1
0
921.6 kbps
U2Xn = 0
f
Error
clk
-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%
io
= 14.7456 MHz
UBRRn
767
383
191
127
95
63
47
31
23
15
1.8432 Mbps
7
6
3
1
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%
5.3%
UBRRn
416
207
103
68
51
34
25
16
12
8
3
3
1
0
U2Xn = 0
1 Mbps
f
Error
clk
-0.1%
-0.8%
-3.5%
0.2%
0.2%
0.6%
0.2%
0.2%
2.1%
0.2%
8.5%
0.0%
0.0%
0.0%
io
= 16.0000 MHz
UBRRn
832
416
207
138
103
68
51
34
25
16
8
7
3
1
4250C–CAN–03/04
U2Xn = 1
2 Mbps
Error
-0.1%
-0.1%
-0.8%
-3.5%
0.0%
0.2%
0.2%
0.6%
0.2%
0.2%
2.1%
0.0%
0.0%
0.0%