PIC17C75X Datasheet, PDF (111/320 Pages) Microchip Technology – High-Performance 8-Bit CMOS EPROM Microcontrollers

PIC17C75X
TABLE 14-4: BAUD RATES FOR SYNCHRONOUS MODE
FOSC = 33 MHz
BAUD
RATE
(K) KBAUD %ERROR
FOSC = 25 MHz
SPBRG
value
(decimal) KBAUD %ERROR
FOSC = 20 MHz
SPBRG
value
(decimal) KBAUD %ERROR
FOSC = 16 MHz
SPBRG
value
(decimal) KBAUD %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
—
—
NA
—
—
19.2 NA
—
—
NA
—
—
19.53
+1.73
255
19.23
+0.16
207
76.8 77.10
+0.39
106
77.16
+0.47
80
76.92
+0.16
64
76.92
+0.16
51
96 95.93
-0.07
85
96.15
+0.16
64
96.15
+0.16
51
95.24
-0.79
41
300 294.64 -1.79
27
297.62 -0.79
20
294.1
-1.96
16
307.69 +2.56
12
500 485.29 -2.94
16
480.77 -3.85
12
500
0
9
500
0
7
HIGH 8250
—
0
6250
—
0
5000
—
0
4000
—
0
LOW 32.22
—
255
24.41
—
255
19.53
—
255
15.625
—
255
BAUD
RATE
(K)
0.3
1.2
2.4
9.6
19.2
76.8
96
300
500
HIGH
LOW
BAUD
RATE
(K)
0.3
1.2
2.4
9.6
19.2
76.8
96
300
500
HIGH
LOW
FOSC = 10 MHz
KBAUD
NA
NA
NA
9.766
19.23
75.76
96.15
312.5
500
2500
9.766
%ERROR
—
—
—
+1.73
+0.16
-1.36
+0.16
+4.17
0
—
—
FOSC = 3.579 MHz
KBAUD
NA
NA
NA
9.622
19.04
74.57
99.43
298.3
NA
894.9
3.496
%ERROR
—
—
—
+0.23
-0.83
-2.90
_3.57
-0.57
—
—
—
SPBRG
value
(decimal)
—
—
—
255
129
32
25
7
4
0
255
FOSC = 7.159 MHz
KBAUD
NA
NA
NA
9.622
19.24
77.82
94.20
298.3
NA
1789.8
6.991
%ERROR
—
—
—
+0.23
+0.23
+1.32
-1.88
-0.57
—
—
—
SPBRG
value
(decimal)
—
—
—
92
46
11
8
2
—
0
255
FOSC = 1 MHz
KBAUD
NA
1.202
2.404
9.615
19.24
83.34
NA
NA
NA
250
0.976
%ERROR
—
+0.16
+0.16
+0.16
+0.16
+8.51
—
—
—
—
—
SPBRG
value
(decimal)
—
—
—
185
92
22
18
5
—
0
255
FOSC = 5.068 MHz
KBAUD
NA
NA
NA
9.6
19.2
79.2
97.48
316.8
NA
1267
4.950
%ERROR
—
—
—
0
0
+3.13
+1.54
+5.60
—
—
—
SPBRG
value
(decimal)
—
207
103
25
12
2
—
—
—
0
255
FOSC = 32.768 kHz
KBAUD
0.303
1.170
NA
NA
NA
NA
NA
NA
NA
8.192
0.032
%ERROR
+1.14
-2.48
—
—
—
—
—
—
—
—
—
SPBRG
value
(decimal)
—
—
—
131
65
15
12
3
—
0
255
SPBRG
value
(decimal)
26
6
—
—
—
—
—
—
—
0
255
© 1997 Microchip Technology Inc.
Preliminary
DS30264A-page 111