PIC16F87X Datasheet, PDF (100/218 Pages) Microchip Technology – 28/40-pin 8-Bit CMOS FLASH Microcontrollers

PIC16F87X
TABLE 10-3: BAUD RATES FOR ASYNCHRONOUS MODE (BRGH = 0)
BAUD
RATE
(K)
0.3
1.2
2.4
9.6
19.2
28.8
33.6
57.6
HIGH
LOW
FOSC = 20 MHz
KBAUD
-
1.221
2.404
9.766
19.531
31.250
34.722
62.500
1.221
312.500
%
ERROR
-
1.75
0.17
1.73
1.72
8.51
3.34
8.51
-
-
SPBRG
value
(decimal)
-
255
129
31
15
9
8
4
255
0
FOSC = 16 MHz
KBAUD
-
1.202
2.404
9.615
19.231
27.778
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
FOSC = 10 MHz
KBAUD
-
1.202
2.404
9.766
19.531
31.250
31.250
52.083
0.610
156.250
%
ERROR
-
0.17
0.17
1.73
1.72
8.51
6.99
9.58
-
-
SPBRG
value
(decimal)
-
129
64
15
7
4
4
2
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
KBAUD
0.300
1.202
2.404
8.929
20.833
31.250
-
62.500
0.244
62.500
%
ERROR
0
0.17
0.17
6.99
8.51
8.51
-
8.51
-
-
SPBRG
value
(decimal)
207
51
25
6
2
1
-
0
255
0
FOSC = 3.6864 MHz
KBAUD
0.3
1.2
2.4
9.6
19.2
28.8
-
57.6
0.225
57.6
%
ERROR
0
0
0
0
0
0
-
0
-
-
SPBRG
value
(decimal)
191
47
23
5
2
1
-
0
255
0
TABLE 10-4: 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
-
0
0
0
0
0
2.04
0
-
-
SPBRG
value
(decimal)
-
191
95
23
11
7
6
3
255
0
DS30292C-page 98
 2001 Microchip Technology Inc.