PIC16F870_13 Datasheet, PDF (65/172 Pages) Microchip Technology – 28/40-Pin, 8-Bit CMOS FLASH Microcontrollers

PIC16F870/871
TABLE 9-4: BAUD RATES FOR ASYNCHRONOUS MODE (BRGH = 1)
BAUD
RATE
(K)
0.3
1.2
2.4
9.6
19.2
28.8
33.6
57.6
HIGH
LOW
FOSC = 20 MHz
FOSC = 16 MHz
KBAUD
-
-
-
9.615
19.231
29.070
33.784
59.524
4.883
1250.000
%
ERROR
-
-
-
0.16
0.16
0.94
0.55
3.34
-
-
SPBRG
value
(decimal)
KBAUD
-
-
-
-
-
-
129
9.615
64
19.231
42
29.412
36
33.333
20
58.824
255
3.906
0
1000.000
%
ERROR
-
-
-
0.16
0.16
2.13
0.79
2.13
-
SPBRG
value
(decimal)
-
-
-
103
51
33
29
16
255
0
FOSC = 10 MHz
KBAUD
-
-
2.441
9.615
19.531
28.409
32.895
56.818
2.441
625.000
%
ERROR
-
-
1.71
0.16
1.72
1.36
2.10
1.36
-
-
SPBRG
value
(decimal)
-
-
255
64
31
21
18
10
255
0
BAUD
RATE
(K)
0.3
1.2
2.4
9.6
19.2
28.8
33.6
57.6
HIGH
LOW
FOSC = 4 MHz
FOSC = 3.6864 MHz
KBAUD
-
1.202
2.404
9.615
19.231
27.798
35.714
62.500
0.977
250.000
%
ERROR
-
0.17
0.17
0.16
0.16
3.55
6.29
8.51
-
-
SPBRG
value
(decimal)
-
207
103
25
12
8
6
3
255
0
KBAUD
-
1.2
2.4
9.6
19.2
28.8
32.9
57.6
0.9
230.4
%
ERROR
SPBRG
value
(decimal)
-
-
0
191
0
95
0
23
0
11
0
7
2.04
6
0
3
-
255
-
0
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DS30569C-page 65