PIC18F2220 Datasheet, PDF (203/388 Pages) Microchip Technology – 28/40/44-Pin High-Performance, Enhanced Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology

PIC18F2220/2320/4220/4320
TABLE 18-5: BAUD RATES FOR SYNCHRONOUS MODE (SYNC = 1)
BAUD
RATE
(K)
FOSC = 40.000 MHz
FOSC = 20.000 MHz
FOSC = 16.000 MHz
Actual
Rate (K)
%
Error
SPBRG _Actual
value _{Rate (K)}
(decimal)
%
Error
SPBRG _Actual
value _{Rate (K)}
(decimal)
% ^SPBRG
Error ^value
(decimal)
FOSC = 10.000 MHz
Actual
Rate
(K)
% ^SPBRG
Error ^value
(decimal)
9.6
—
—
—
—
—
—
15.63 62.76 255
9.77 1.73
255
19.2
—
—
—
19.53 1.73
255
19.23 0.16
207
19.23 0.16
129
38.4 39.06 1.73
255
38.46 0.16
129
38.46 0.16
103
38.46 0.16
64
57.6 57.47 -0.22 173
57.47 -0.22
86
57.97 0.64
68
58.14 0.94
42
76.8 76.92 0.16
129
76.92 0.16
64
76.92 0.16
51
75.76 -1.36
32
96.0 96.15 0.16
103
96.15 0.16
51
95.24 -0.79
41
96.15 0.16
25
250.0 250.00 0.00
39
250.00 0.00
19
250.00 0.00
15 250.00 0.00
9
300.0 303.03 1.01
32
294.12 -1.96
16
307.69 2.56
12 312.50 4.17
7
500.0 500.00 0.00
19
500.00 0.00
9
500.00 0.00
7
500.00 0.00
4
625.0 625.00 0.00
15
625.00 0.00
7
666.67 6.67
5
625.00 0.00
3
1000.0 1000.00 0.00
9
1000.00 0.00
4
1000.00 0.00
3
833.33 -16.67
2
1250.0 1250.00 0.00
7
1250.00 0.00
3
1333.33 6.67
2 1250.00 0.00
1
BAUD
RATE
(K)
FOSC = 8.000000 MHz
FOSC = 7.159090 MHz
FOSC = 5.068800 MHz
FOSC = 4.000 MHz
Actual
Rate (K)
% ^SPBRG Actual
Error ^value Rate (K)
(decimal)
%
Error
SPBRG _Actual
value _{Rate (K)}
(decimal)
%
Error
SPBRG _Actual
value _{Rate (K)}
(decimal)
%
Error
SPBRG
value
(decimal)
2.4
7.81 225.52 255
6.99 191.30 255
4.95 106.25 255
3.91 62.76 255
9.6
9.62
0.16
207
9.62
0.23
185
9.60
0.00
131
9.62
0.16
103
19.2 19.23 0.16 103
19.24 0.23
92
19.20 0.00
65
19.23 0.16
51
38.4 38.46 0.16
51
38.08 -0.83
46
38.40 0.00
32
38.46 0.16
25
57.6 57.14 -0.79
34
57.73 0.23
30
57.60 0.00
21
58.82 2.12
16
76.8 76.92 0.16
25
77.82 1.32
22
74.54 -2.94
16
76.92 0.16
12
96.0 95.24 -0.79
20
94.20 -1.88
18
97.48 1.54
12
100.00 4.17
9
250.0 250.00 0.00
7
255.68 2.27
6
253.44 1.38
4
250.00 0.00
3
300.0 285.71 -4.76
6
298.30 -0.57
5
316.80 5.60
3
333.33 11.11
2
500.0 500.00 0.00
3
447.44 -10.51
3
422.40 -15.52
2
500.00 0.00
1
625.0 666.67 6.67
2
596.59 -4.55
2
633.60 1.38
1
—
—
—
1000.0 1000.00 0.00
1
894.89 -10.51
1
—
—
— 1000.00 0.00
0
1250.0 —
—
— 1789.77 43.18
0
1267.20 1.38
0
—
—
—
BAUD
RATE
(K)
0.3
1.2
2.4
9.6
19.2
38.4
57.6
76.8
96.0
250.0
500.0
FOSC = 3.579545 MHz
FOSC = 2.000000 MHz
FOSC = 1.000000 MHz
FOSC = 0.032768 MHz
Actual
Rate (K)
—
—
3.50
9.62
19.04
38.91
55.93
74.57
99.43
223.72
447.44
%
Error
—
—
45.65
0.23
-0.83
1.32
-2.90
-2.90
3.57
-10.51
-10.51
SPBRG _Actual
value _{Rate (K)}
(decimal)
—
—
—
1.95
255
2.40
92
9.62
46
19.23
22
38.46
15
55.56
11
71.43
8
100.00
3
250.00
1
500.00
%
Error
—
62.76
0.16
0.16
0.16
0.16
-3.55
-6.99
4.17
0.00
0.00
SPBRG
value
(decimal)
—
255
207
51
25
12
8
6
4
1
0
Actual
Rate (K)
0.98
1.20
2.40
9.62
19,.23
35.71
62.50
83.33
—
250.00
—
% ^SPBRG Actual
Error ^value Rate (K)
(decimal)
225.52 255
0.30
0.16 207
1.17
0.16 103
2.73
0.16
25
8.19
0.16
12
—
-6.99
6
—
8.51
3
—
8.51
2
—
—
—
—
0.00
0
—
—
—
—
% ^SPBRG
Error ^value
(decimal)
1.14
26
-2.48
6
13.78
2
-14.67
0
—
—
—
—
—
—
—
—
—
—
—
—
—
—
 2003 Microchip Technology Inc.
DS39599C-page 201