PIC18F2525_08 Datasheet, PDF (209/412 Pages) Microchip Technology – 28/40/44-Pin Enhanced Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology

PIC18F2525/2620/4525/4620
TABLE 18-3: BAUD RATES FOR ASYNCHRONOUS MODES
BAUD
RATE
(K)
SYNC = 0, BRGH = 0, BRG16 = 0
FOSC = 40.000 MHz
FOSC = 20.000 MHz
FOSC = 10.000 MHz
FOSC = 8.000 MHz
Actual
Rate
(K)
%
Error
SPBRG Actual
value Rate
(decimal) (K)
%
Error
SPBRG Actual
value Rate
(decimal) (K)
%
Error
SPBRG Actual
value Rate
(decimal) (K)
%
Error
SPBRG
value
(decimal)
0.3
—
—
—
—
—
—
—
—
—
—
—
—
1.2
—
—
—
1.221 1.73
255 1.202 0.16
129
1.201 -0.16
103
2.4 2.441 1.73
255 2.404 0.16
129 2.404 0.16
64
2.403 -0.16
51
9.6 9.615 0.16
64
9.766 1.73
31
9.766 1.73
15
9.615 -0.16
12
19.2 19.531 1.73
31 19.531 1.73
15 19.531 1.73
7
—
—
—
57.6 56.818 -1.36
10 62.500 8.51
4
52.083 -9.58
2
—
—
—
115.2 125.000 8.51
4 104.167 -9.58
2
78.125 -32.18
1
—
—
—
BAUD
RATE
(K)
0.3
1.2
2.4
9.6
19.2
57.6
115.2
SYNC = 0, BRGH = 0, BRG16 = 0
FOSC = 4.000 MHz
Actual
Rate
(K)
%
Error
SPBRG
value
(decimal)
FOSC = 2.000 MHz
Actual
Rate
(K)
%
Error
SPBRG
value
(decimal)
FOSC = 1.000 MHz
Actual
Rate
(K)
%
Error
SPBRG
value
(decimal)
0.300 0.16
207
0.300 -0.16
103
0.300 -0.16
51
1.202 0.16
51
1.201 -0.16
25
1.201 -0.16
12
2.404 0.16
25
2.403 -0.16
12
—
—
—
8.929 -6.99
6
—
—
—
—
—
—
20.833 8.51
2
—
—
—
—
—
—
62.500 8.51
0
—
—
—
—
—
—
62.500 -45.75
0
—
—
—
—
—
—
BAUD
RATE
(K)
SYNC = 0, BRGH = 1, BRG16 = 0
FOSC = 40.000 MHz
Actual
Rate
(K)
%
Error
SPBRG
value
(decimal)
FOSC = 20.000 MHz
Actual
Rate
(K)
%
Error
SPBRG
value
(decimal)
FOSC = 10.000 MHz
Actual
Rate
(K)
%
Error
SPBRG
value
(decimal)
FOSC = 8.000 MHz
Actual
Rate
(K)
%
Error
SPBRG
value
(decimal)
0.3
—
—
—
—
—
—
—
—
—
—
—
—
1.2
—
—
—
—
—
—
—
—
—
—
—
—
2.4
—
—
—
—
—
—
2.441 1.73
255
2.403 -0.16
207
9.6 9.766 1.73
255 9.615 0.16
129 9.615 0.16
64
9.615 -0.16
51
19.2 19.231 0.16
129 19.231 0.16
64 19.531 1.73
31 19.230 -0.16
25
57.6 58.140 0.94
42 56.818 -1.36
21 56.818 -1.36
10 55.555 3.55
8
115.2 113.636 -1.36
21 113.636 -1.36
10 125.000 8.51
4
—
—
—
BAUD
RATE
(K)
SYNC = 0, BRGH = 1, BRG16 = 0
FOSC = 4.000 MHz
FOSC = 2.000 MHz
FOSC = 1.000 MHz
Actual
Rate
(K)
%
Error
SPBRG Actual
value Rate
(decimal) (K)
%
Error
SPBRG Actual
value Rate
(decimal) (K)
%
Error
SPBRG
value
(decimal)
0.3
—
—
—
—
—
—
0.300 -0.16
207
1.2 1.202 0.16
207
1.201 -0.16
103
1.201 -0.16
51
2.4 2.404 0.16
103 2.403 -0.16
51
2.403 -0.16
25
9.6 9.615 0.16
25
9.615 -0.16
12
—
—
—
19.2 19.231 0.16
12
—
—
—
—
—
—
57.6 62.500 8.51
3
—
—
—
—
—
—
115.2 125.000 8.51
1
—
—
—
—
—
—
© 2008 Microchip Technology Inc.
DS39626E-page 207