PIC17C75X
TABLE 14-5: BAUD RATES FOR ASYNCHRONOUS MODE
FOSC = 33 MHz
FOSC = 25 MHz
FOSC = 20 MHz
FOSC = 16 MHz
BAUD
RATE
(K)
SPBRG
value
SPBRG
value
SPBRG
value
SPBRG
value
KBAUD %ERROR (decimal) KBAUD %ERROR (decimal) KBAUD %ERROR (decimal) KBAUD %ERROR (decimal)
0.3
1.2
NA
—
—
—
—
214
53
26
6
NA
NA
—
—
—
—
162
40
19
4
NA
—
—
255
129
32
15
3
NA
1.202
2.404
9.615
19.23
83.33
NA
—
+0.16
+0.16
+0.16
+0.16
+8.51
—
—
207
103
25
12
2
NA
1.221
2.404
9.469
19.53
78.13
104.2
312.5
NA
+1.73
+0.16
-1.36
+1.73
+1.73
+8.51
+4.17
—
2.4
2.398
9.548
19.09
73.66
103.12
257.81
515.62
-0.07
-0.54
-0.54
-4.09
+7.42
-14.06
+3.13
—
2.396
9.53
19.53
78.13
97.65
390.63
NA
0.14
-0.76
+1.73
+1.73
+1.73
+30.21
—
9.6
19.2
76.8
96
4
3
2
—
300
500
1
0
0
NA
—
—
0
—
0
—
0
NA
—
—
HIGH 515.62
LOW 2.014
0
—
—
312.5
1.221
—
250
—
0
—
255
1.53
—
255
—
255
0.977
—
255
FOSC = 7.159 MHz
FOSC = 5.068 MHz
FOSC = 10 MHz
KBAUD
BAUD
RATE
(K)
SPBRG
value
(decimal)
SPBRG
value
(decimal)
SPBRG
value
(decimal)
%ERROR
KBAUD
%ERROR
KBAUD
%ERROR
+3.13
0.3
1.2
NA
—
+0.16
+0.16
+1.73
+1.73
+1.73
—
—
129
64
15
7
NA
1.203
2.380
9.322
18.64
NA
—
_0.23
-0.83
-2.90
-2.90
—
—
92
46
11
5
0.31
1.2
255
65
32
7
1.202
2.404
9.766
19.53
78.13
NA
0
0
2.4
2.4
9.6
9.9
-3.13
+3.13
+3.13
—
19.2
76.8
96
19.8
79.2
NA
3
1
—
—
—
—
0
0
—
—
—
0
NA
—
—
—
—
0
300
500
HIGH
LOW
NA
—
NA
—
NA
—
NA
—
NA
—
NA
—
156.3
0.610
—
111.9
0.437
—
79.2
0.309
—
—
255
—
255
—
255
FOSC = 1 MHz
FOSC = 32.768 kHz
FOSC = 3.579 MHz
BAUD
RATE
(K)
SPBRG
value
(decimal)
SPBRG
value
(decimal)
SPBRG
value
(decimal)
KBAUD
%ERROR
KBAUD
%ERROR
KBAUD
%ERROR
0.3
1.2
0.301
1.190
2.432
9.322
18.64
NA
+0.23
-0.83
+1.32
-2.90
-2.90
—
185
46
22
5
0.300
1.202
2.232
NA
+0.16
+0.16
-6.99
—
51
12
6
0.256
NA
-14.67
—
1
—
—
—
—
—
—
—
—
0
2.4
NA
—
9.6
—
—
—
—
—
—
0
NA
—
19.2
76.8
96
2
NA
—
NA
—
—
—
—
—
0
NA
—
NA
—
NA
—
NA
—
NA
—
300
500
HIGH
LOW
NA
—
NA
—
NA
—
NA
—
NA
—
NA
—
55.93
0.218
—
15.63
0.061
—
0.512
0.002
—
—
255
—
255
—
255
DS30264A-page 112
Preliminary
1997 Microchip Technology Inc.
MICROCHIP [ MICROCHIP ]
