PIC17C75X
TABLE 14-4: BAUD RATES FOR SYNCHRONOUS MODE
FOSC = 33 MHz
FOSC = 25 MHz
FOSC = 20 MHz
FOSC = 16 MHz
SPBRG
BAUD
RATE
(K)
SPBRG
value
SPBRG
value
SPBRG
value
value
KBAUD %ERROR (decimal) KBAUD %ERROR (decimal) KBAUD %ERROR (decimal) KBAUD %ERROR (decimal)
0.3
1.2
NA
NA
—
—
—
—
NA
NA
—
—
—
—
—
—
—
80
64
20
12
0
NA
NA
—
—
—
—
NA
NA
—
—
—
—
2.4
NA
—
—
NA
—
NA
—
—
NA
—
—
9.6
NA
—
—
NA
—
NA
—
—
NA
—
—
19.2
76.8
96
NA
—
—
NA
—
19.53
76.92
96.15
294.1
500
+1.73
+0.16
+0.16
-1.96
0
255
64
51
16
9
19.23
76.92
95.24
307.69
500
+0.16
+0.16
-0.79
+2.56
0
207
51
41
12
7
77.10
95.93
294.64
485.29
8250
32.22
+0.39
-0.07
-1.79
-2.94
—
106
85
27
16
0
77.16
96.15
297.62
480.77
6250
24.41
+0.47
+0.16
-0.79
-3.85
—
300
500
HIGH
LOW
5000
19.53
—
0
4000
15.625
—
0
—
255
—
255
—
255
—
255
FOSC = 10 MHz
KBAUD
FOSC = 7.159 MHz
FOSC = 5.068 MHz
BAUD
RATE
(K)
SPBRG
value
(decimal)
SPBRG
value
(decimal)
SPBRG
value
(decimal)
%ERROR
KBAUD
%ERROR
KBAUD
%ERROR
0.3
1.2
NA
—
—
—
—
NA
NA
—
—
—
—
NA
NA
—
—
—
0
—
—
NA
2.4
NA
—
—
NA
—
—
NA
—
9.6
9.766
19.23
75.76
96.15
312.5
500
+1.73
+0.16
-1.36
+0.16
+4.17
0
255
129
32
25
7
9.622
19.24
77.82
94.20
298.3
NA
+0.23
+0.23
+1.32
-1.88
-0.57
—
185
92
22
18
5
9.6
131
65
15
12
3
19.2
76.8
96
19.2
79.2
97.48
316.8
NA
0
+3.13
+1.54
+5.60
—
300
500
HIGH
LOW
4
—
—
2500
9.766
—
0
1789.8
6.991
—
0
1267
4.950
—
0
—
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
NA
—
—
—
—
—
92
46
11
8
NA
1.202
2.404
9.615
19.24
83.34
NA
—
+0.16
+0.16
+0.16
+0.16
+8.51
—
—
207
103
25
12
2
0.303
1.170
NA
+1.14
-2.48
—
26
6
NA
2.4
NA
—
—
—
—
—
—
—
—
0
9.6
9.622
19.04
74.57
99.43
298.3
NA
+0.23
-0.83
-2.90
_3.57
-0.57
—
NA
—
19.2
76.8
96
NA
—
NA
—
—
NA
—
300
500
HIGH
LOW
2
NA
—
—
NA
—
—
0
NA
—
—
NA
—
894.9
3.496
—
250
—
0
8.192
0.032
—
—
255
0.976
—
255
—
255
1997 Microchip Technology Inc.
Preliminary
DS30264A-page 111
MICROCHIP [ MICROCHIP ]
