PIC16F627A_05 Datasheet, PDF (76/180 Pages) Microchip Technology – Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology

PIC16F627A/628A/648A
TABLE 12-3: BAUD RATES FOR SYNCHRONOUS MODE
BAUD ^{FOSC = 20 MHz}
RATE (K) _{KBAUD ERROR}
SPBRG 16 MHz
value
(decimal) ^KBAUD
ERROR
SPBRG 10 MHz
value
(decimal) ^KBAUD
0.3
NA
—
—
NA
—
—
1.2
NA
—
—
NA
—
—
2.4
NA
—
—
NA
—
—
9.6
NA
—
—
NA
—
—
19.2
19.53
+1.73%
255
19.23
+0.16%
207
76.8
76.92
+0.16%
64
76.92
+0.16%
51
96
96.15
+0.16%
51
95.24
-0.79%
41
300
294.1
-1.96
16
307.69
+2.56%
12
500
500
0
9
500
0
7
HIGH
5000
—
0
4000
—
0
LOW
19.53
—
255
15.625
—
255
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
—
—
SPBRG
value
(decimal)
—
—
—
255
129
32
25
7
4
0
255
BAUD ^{FOSC = 7.15909 MHz}
RATE (K) _{KBAUD ERROR}
0.3
1.2
2.4
9.6
19.2
76.8
96
300
500
HIGH
LOW
NA
NA
NA
9.622
19.24
77.82
94.20
298.3
NA
1789.8
6.991
—
—
—
+0.23%
+0.23%
+1.32
-1.88
-0.57
—
—
—
SPBRG 5.0688 MHz
value
(decimal) ^KBAUD
ERROR
—
NA
—
—
NA
—
—
NA
—
185
9.6
0
92
19.2
0
22
79.2
+3.13%
18
97.48
+1.54%
5
316.8
5.60%
—
NA
—
0
1267
—
255
4.950
—
SPBRG 4 MHz
value
(decimal) ^KBAUD
—
NA
—
NA
—
NA
131
9.615
65
19.231
15
75.923
12
1000
3
NA
—
NA
0
100
255
3.906
ERROR
—
—
—
+0.16%
+0.16%
+0.16%
+4.17%
—
—
—
—
SPBRG
value
(decimal)
—
—
—
103
51
12
9
—
—
0
255
BAUD ^{FOSC = 3.579545 MHz}
RATE (K) _{KBAUD ERROR}
0.3
1.2
2.4
9.6
19.2
76.8
96
300
500
HIGH
LOW
NA
NA
NA
9.622
19.04
74.57
99.43
298.3
NA
894.9
3.496
—
—
—
+0.23%
-0.83%
-2.90%
+3.57%
0.57%
—
—
—
SPBRG 1 MHz
value
(decimal) ^KBAUD
—
NA
—
1.202
—
2.404
92
9.615
46
19.24
11
83.34
8
NA
2
NA
—
NA
0
250
255
0.9766
ERROR
—
+0.16%
+0.16%
+0.16%
+0.16%
+8.51%
—
—
—
—
—
SPBRG 32.768 kHz
value
(decimal) ^KBAUD
ERROR
—
0.303
+1.14%
207
1.170
-2.48%
103
NA
—
25
NA
—
12
NA
—
2
NA
—
—
NA
—
—
NA
—
—
NA
—
0
8.192
—
255
0.032
—
SPBRG
value
(decimal)
26
6
—
—
—
—
—
—
—
0
255
DS40044D-page 74
© 2005 Microchip Technology Inc.