PIC18CXX2_13 Datasheet, PDF (152/304 Pages) Microchip Technology – High Performance Microcontrollers with 10-bit A/D

PIC18CXX2
TABLE 15-3: BAUD RATES FOR SYNCHRONOUS MODE
BAUD
RATE
(K)
FOSC = 40 MHz
FOSC = 20 MHz
FOSC = 16 MHz
FOSC = 10 MHz
Actual
Rate (K)
%
Error
SPBRG Actua
value l Rate
(decimal) (K)
%
Error
SPBRG Actual
value Rate
(decimal) (K)
%
Error
SPBRG Actual
value Rate
(decimal) (K)
%
Error
SPBRG
value
(decimal)
0.3
NA
—
—
NA
—
—
NA
—
—
NA
—
—
1.2
NA
—
—
NA
—
—
NA
—
—
NA
—
—
2.4
NA
—
—
NA
—
—
NA
—
—
NA
—
—
9.6
NA
—
—
NA
—
—
NA
—
—
9.766 +1.73
255
19.2
NA
—
—
19.53 +1.73
255 19.23 +0.16
207 19.23 +0.16
129
76.8 76.92
0
129 76.92 +0.16
64
76.92 +0.16
51
75.76 -1.36
32
96
96.15
0
103 96.15 +0.16
51
95.24 -0.79
41
96.15 +0.16
25
300 303.03 -0.01
32
294.1 -1.96
16 307.69 +2.56
12
312.5 +4.17
7
500 500.00
0
19
500
0
9
500
0
7
500
0
4
HIGH 39.06
—
255 5000 —
0
4000
—
0
2500
—
0
LOW 10000.00 —
0
19.53 —
255 15.625 —
255 9.766 —
255
BAUD
RATE
(K)
FOSC = 7.15909 MHz
Actual
Rate
(K)
%
Error
SPBRG
value
(decimal)
FOSC = 5.0688 MHz
Actual
Rate
(K)
%
Error
SPBRG
value
(decimal)
FOSC = 4 MHz
Actual
Rate
(K)
%
Error
SPBRG
value
(decimal)
FOSC = 3.579545 MHz
Actual
Rate
(K)
%
Error
SPBRG
value
(decimal)
0.3
NA
—
—
NA
—
—
NA
—
——
NA
—
—
1.2
NA
—
—
NA
—
—
NA
—
—
NA
—
—
2.4
NA
—
—
NA
—
—
NA
—
—
NA
—
—
9.6 9.622 +0.23
185
9.6
0
131 9.615 +0.16
103 9.622 +0.23
92
19.2 19.24 +0.23
92
19.2
0
65 19.231 +0.16
51
19.04 -0.83
46
76.8 77.82 +1.32
22
79.2 +3.13
15 76.923 +0.16
12
74.57 -2.90
11
96 94.20 -1.88
18
97.48 +1.54
12
1000 +4.17
9
99.43 +3.57
8
300 298.3 -0.57
5
316.8 +5.60
3
NA
—
—
298.3 -0.57
2
500 NA
—
—
NA
—
—
NA
—
—
NA
—
—
HIGH 1789.8 —
0
1267
—
0
100
—
0
894.9 —
0
LOW 6.991 —
255
4.950
—
255 3.906 —
255 3.496 —
255
BAUD
RATE
(K)
FOSC = 1 MHz
Actual
Rate
(K)
%
Error
SPBRG
value
(decimal)
FOSC = 32.768 kHz
Actual
Rate
(K)
%
Error
SPBRG
value
(decimal)
0.3
NA
—
—
0.303 +1.14
26
1.2 1.202 +0.16
207
1.170 -2.48
6
2.4 2.404 +0.16
103
NA
—
—
9.6 9.615 +0.16
25
NA
—
—
19.2 19.24 +0.16
12
NA
—
—
76.8 83.34 +8.51
2
NA
—
—
96
NA
—
—
NA
—
—
300 NA
—
—
NA
—
—
500 NA
—
—
NA
—
—
HIGH 250
—
0
8.192 —
0
LOW 0.9766 —
255
0.032
—
255
DS39026D-page 152
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