
PIC16F62X
DS40300C-page 72
Preliminary
2003 Microchip Technology Inc.
TABLE 12-5:
BAUD RATES FOR ASYNCHRONOUS MODE (BRGH = 1)
BAUD
RATE (K)
F
OSC = 20 MHz
SPBRG
value
(decimal)
16 MHz
SPBRG
value
(decimal)
10 MHz
SPBRG
value
(decimal)
KBAUD
ERROR
KBAUD
ERROR
KBAUD
ERROR
9600
9.615
+0.16%
129
9.615
+0.16%
103
9.615
+0.16%
64
19200
19.230
+0.16%
64
19.230
+0.16%
51
18.939
-1.36%
32
38400
37.878
-1.36%
32
38.461
+0.16%
25
39.062
+1.7%
15
57600
56.818
-1.36%
21
58.823
+2.12%
16
56.818
-1.36%
10
115200
113.636
-1.36%
10
111.111
-3.55%
8
125
+8.51%
4
250000
250
0
4
250
0
3
NA
—
625000
625
0
1
NA
—
625
0
1250000
1250
0
NA
—
NA
—
BAUD
RATE (K)
F
OSC = 7.16 MHz
SPBRG
value
(decimal)
5.068 MHz
SPBRG
value
(decimal)
4 MHz
SPBRG
value
(decimal)
KBAUD
ERROR
KBAUD
ERROR
KBAUD
ERROR
9600
9.520
-0.83%
46
9598.485
0.016%
32
9615.385
0.160%
25
19200
19.454
+1.32%
22
18632.35
-2.956%
16
19230.77
0.160%
12
38400
37.286
-2.90%
11
39593.75
3.109%
7
35714.29
-6.994%
6
57600
55.930
-2.90%
7
52791.67
-8.348%
5
62500
8.507%
3
115200
111.860
-2.90%
3
105583.3
-8.348%
2
125000
8.507%
1
250000
NA
—
316750
26.700%
0
250000
0.000%
0
625000
NA
—
NA
—
NA
—
1250000
NA
—
NA
—
NA
—
BAUD
RATE
(K)
F
OSC = 3.579 MHz
SPBRG
value
(decimal)
1 MHz
SPBRG
value
(decimal)
32.768 MHz
SPBRG
value
(decimal)
KBAUD
ERROR
KBAUD
ERROR
KBAUD
ERROR
9600
9725.543
1.308%
22
8.928
-6.994%
6
NA
19200
18640.63
-2.913%
11
20833.3
8.507%
2
NA
38400
37281.25
-2.913%
5
31250
-18.620%
1
NA
57600
55921.88
-2.913%
3
62500
+8.507
0
NA
115200
111243.8
-2.913%
1
NA
—
NA
250000
223687.5
-10.525%
0
NA
—
NA
625000
NA
—
NA
—
NA
1250000
NA
—
NA
—
NA