Datasheet

 2010-2012 Microchip Technology Inc. DS39977F-page 339
PIC18F66K80 FAMILY
TABLE 22-4: BAUD RATES FOR ASYNCHRONOUS MODES
BAUD
RATE
(K)
SYNC = 0, BRGH = 0, BRG16 = 0
FOSC = 64.000 MHz FOSC = 40.000 MHz FOSC = 20.000 MHz FOSC = 10.000 MHz
Actual
Rate
(K)
%
Error
SPBRG
value
(decimal)
Actual
Rate
(K)
%
Error
SPBRG
value
(decimal)
Actual
Rate
(K)
%
Error
SPBRG
value
(decimal)
Actual
Rate
(K)
%
Error
SPBRG
value
(decimal)
0.3
———
—————————
1.2 — — — — — — 1.221 1.73 255 1.202 0.16 129
2.4 — — — 2.441 1.73 255 2.404 0.16 129 2.404 0.16 64
9.6 9.615 0.16 103 9.615 0.16 64 9.766 1.73 31 9.766 1.73 15
19.2 19.231 0.16 51 19.531 1.73 31 19.531 1.73 15 19.531 1.73 7
57.6 58.824 2.13 16 56.818 -1.36 10 62.500 8.51 4 52.083 -9.58 2
115.2 111.111 -3.55 8 125.000 8.51 4 104.167 -9.58 2 78.125 -32.18 1
BAUD
RATE
(K)
SYNC = 0, BRGH = 0, BRG16 = 0
F
OSC = 8.000 MHz FOSC = 4.000 MHz FOSC = 2.000 MHz FOSC = 1.000 MHz
Actual
Rate
(K)
%
Error
SPBRG
value
(decimal)
Actual
Rate
(K)
%
Error
SPBRG
value
(decimal)
Actual
Rate
(K)
%
Error
SPBRG
value
(decimal)
Actual
Rate
(K)
%
Error
SPBRG
value
(decimal)
0.3 — — — 0.300 0.16 207 0.300 -0.16 103 0.300 -0.16 51
1.2 1.201 -0.16 103 1.202 0.16 51 1.201 -0.16 25 1.201 -0.16 12
2.4 2.403 -0.16 51 2.404 0.16 25 2.403 -0.16 12 — — —
9.6 9.615 -0.16 12 8.929 -6.99 6 — — — — — —
19.2 — — — 20.833 8.51 2 — — — — — —
57.6 — — — 62.500 8.51 0 — — — — — —
115.2 — — — 62.500 -45.75 0 — — — — — —
BAUD
RATE
(K)
SYNC = 0, BRGH = 1, BRG16 = 0
F
OSC = 64.000 MHz FOSC = 40.000 MHz FOSC = 20.000 MHz FOSC = 10.000 MHz
Actual
Rate
(K)
%
Error
SPBRG
value
(decimal)
Actual
Rate
(K)
%
Error
SPBRG
value
(decimal)
Actual
Rate
(K)
%
Error
SPBRG
value
(decimal)
Actual
Rate
(K)
%
Error
SPBRG
value
(decimal)
0.3
———
—————————
1.2————————————
2.4 — — — — — — — — — 2.441 1.73 255
9.6 — — — 9.766 1.73 255 9.615 0.16 129 9.615 0.16 64
19.2 19.417 1.13 207 19.231 0.16 129 19.231 0.16 64 19.531 1.73 31
57.6 59.701 3.65 68 58.140 0.94 42 56.818 -1.36 21 56.818 -1.36 10
115.2 121.212 5.22 34 113.636 -1.36 21 113.636 -1.36 10 125.000 8.51 4
BAUD
RATE
(K)
SYNC = 0, BRGH = 1, BRG16 = 0
F
OSC = 8.000 MHz FOSC = 4.000 MHz FOSC = 2.000 MHz FOSC = 1.000 MHz
Actual
Rate
(K)
%
Error
SPBRG
value
(decimal)
Actual
Rate
(K)
%
Error
SPBRG
value
(decimal)
Actual
Rate
(K)
%
Error
SPBRG
value
(decimal)
Actual
Rate
(K)
%
Error
SPBRG
value
(decimal)
0.3 — — — — — — — — — 0.300 -0.16 207
1.2 — — — 1.202 0.16 207 1.201 -0.16 103 1.201 -0.16 51
2.4 2.403 -0.16 207 2.404 0.16 103 2.403 -0.16 51 2.403 -0.16 25
9.6 9.615 -0.16 51 9.615 0.16 25 9.615 -0.16 12 — — —
19.2 19.230 -0.16 25 19.231 0.16 12 — — — — — —
57.6 55.555 3.55 8 62.500 8.51 3 — — — — — —
115.2 — — — 125.000 8.51 1 — — — — — —