PIC18FXX20
TABLE 18-5: BAUD RATES FOR ASYNCHRONOUS MODE (BRGH = 1)
FOSC = 40 MHz
33 MHz
25 MHz
20 MHz
BAUD
RATE
SPBRG
SPBRG
value
SPBRG
SPBRG
value
%
%
%
%
value
value
(Kbps)
KBAUD ERROR
KBAUD ERROR
KBAUD ERROR
KBAUD ERROR
(decimal)
(decimal)
(decimal)
(decimal)
0.3
1.2
NA
NA
-
-
-
-
NA
NA
-
-
-
-
NA
NA
-
-
-
-
NA
NA
-
-
-
-
2.4
NA
-
-
NA
-
-
NA
-
-
NA
-
-
9.6
NA
-
+0.16
-1.36
+0.16
+4.17
0
-
9.60
-0.07
+0.39
-0.54
+2.31
-1.79
+3.13
-
214
106
26
20
6
3
0
255
9.59
-0.15
+0.47
+1.73
+1.73
+4.17
+4.17
-
162
80
19
15
4
2
0
255
9.62
+0.16
+0.16
+1.73
+0.16
+4.17
-16.67
-
129
64
15
12
3
2
0
255
19.2
76.8
96
300
500
HIGH
LOW
19.23
75.76
96.15
312.50
500
129
32
25
7
4
0
19.28
76.39
98.21
294.64
515.63
2062.50
8,06
19.30
78.13
97.66
312.50
520.83
1562.50
6.10
19.23
78.13
96.15
312.50
416.67
1250
4.88
2500
9.77
-
-
255
-
-
-
FOSC = 16 MHz
10 MHz
%
7.15909 MHz
%
5.0688 MHz
%
BAUD
RATE
SPBRG
SPBRG
value
SPBRG
value
SPBRG
value
%
value
(Kbps)
KBAUD ERROR
KBAUD ERROR
KBAUD ERROR
KBAUD ERROR
(decimal)
(decimal)
(decimal)
(decimal)
0.3
1.2
NA
NA
-
-
-
-
NA
NA
-
-
-
-
NA
NA
-
-
-
-
NA
NA
-
-
-
-
2.4
9.6
NA
-
+0.16
+0.16
+0.16
+4.17
+11.11
0
-
NA
-
-
2.41
9.52
+0.23
-0.83
+1.32
-2.90
-6.78
+49.15
-10.51
-
185
46
22
5
4
0
0
0
255
2.40
9.60
0
131
32
16
3
2
0
-
0
255
9.62
19.23
76.92
100
333.33
500
103
51
12
9
2
1
9.62
18.94
78.13
89.29
312.50
625
+0.16
-1.36
+1.73
-6.99
+4.17
+25.00
-
64
32
7
6
1
0
0
255
0
-2.94
+3.13
+10.00
+5.60
-
19.2
76.8
96
300
500
HIGH
LOW
19.45
74.57
89.49
447.44
447.44
447.44
1.75
18.64
79.20
105.60
316.80
NA
1000
3.91
-
-
0
255
625
2.44
316.80
1.24
-
-
-
-
FOSC = 4 MHz
%
3.579545 MHz
%
1 MHz
%
32.768 kHz
%
BAUD
RATE
SPBRG
value
SPBRG
value
SPBRG
value
SPBRG
value
(Kbps)
KBAUD ERROR
KBAUD ERROR
KBAUD ERROR
KBAUD ERROR
(decimal)
(decimal)
(decimal)
(decimal)
0.3
1.2
2.4
NA
1.20
2.40
9.62
19.23
NA
NA
NA
NA
250
0.98
-
-
207
103
25
12
-
-
-
-
0
NA
1.20
2.41
-
+0.23
+0.23
+1.32
-2.90
-2.90
+16.52
-25.43
-
-
185
92
22
11
2
1
0
-
0
0.30
1.20
2.40
8.93
20.83
62.50
NA
NA
NA
62.50
0.24
+0.16
+0.16
+0.16
-6.99
+8.51
-18.62
-
-
-
-
-
207
51
25
6
2
0
-
-
-
0
0.29
1.02
2.05
NA
NA
NA
NA
NA
NA
2.05
0.008
-2.48
-14.67
-14.67
6
1
0
-
-
-
-
-
-
+0.16
+0.16
+0.16
+0.16
-
-
-
-
-
-
9.6
9.73
-
-
-
-
-
-
-
-
19.2
76.8
96
300
500
HIGH
LOW
18.64
74.57
111.86
223.72
NA
55.93
0.22
-
-
0
255
255
255
255
2003 Microchip Technology Inc.
Advance Information
DS39609A-page 203
MICROCHIP [ MICROCHIP ]
