Datasheet

PIC18CXX2
DS39026D-page 154  1999-2013 Microchip Technology Inc.
TABLE 15-5: BAUD RATES FOR ASYNCHRONOUS MODE (BRGH = 1)
BAUD
RATE
(K)
F
OSC = 40 MHz FOSC = 20 MHz FOSC = 16 MHz FOSC = 10 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)
9.6 9.77 -1.70 255 9.615 +0.16 129 9.615 +0.16 103 9.615 +0.16 64
19.2 19.23 -0.16 129 19.230 +0.16 64 19.230 +0.16 51 18.939 -1.36 32
38.4 38.46 -0.16 64 37.878 -1.36 32 38.461 +0.16 25 39.062 +1.7 15
57.6 58.14 -0.93 42 56.818 -1.36 21 58.823 +2.12 16 56.818 -1.36 10
115.2 113.64 +1.38 21 113.63 -1.36 10 111.11 -3.55 8 125 +8.51 4
250 250.00 0 9 250 0 4 250 0 3 NA — —
625 625.00 0 3 625 0 1 NA — — 625 0 0
1250 1250.00 0 1 1250 0 0 NA — — NA — —
BAUD
RATE
(K)
F
OSC = 7.16MHz FOSC = 5.068 MHz FOSC = 4 MHz FOSC = 3.579545 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)
9.6 9.520 -0.83 46 9.6 0 32 NA — — 9.727 +1.32 22
19.2 19.454 +1.32 22 18.645 -2.94 16 1.202 +0.17 207 18.643 -2.90 11
38.4 37.286 -2.90 11 39.6 +3.12 7 2.403 +0.13 103 37.286 -2.90 5
57.6 55.930 -2.90 7 52.8 -8.33 5 9.615 +0.16 25 55.930 -2.90 3
115.2 111.860 -2.90 3 105.6 -8.33 2 19.231 +0.16 12 111.86 -2.90 1
250 NA — — NA — — NA — — 223.72 -10.51 0
625 NA — — NA — — NA — — NA — —
1250 NA — — NA — — NA — — NA — —
BAUD
RATE
(K)
F
OSC = 1 MHz FOSC = 32.768 kHz
Actual
Rate
(K)
%
Error
SPBRG
value
(decimal)
Actual
Rate
(K)
%
Error
SPBRG
value
(decimal)
9.6 8.928 -6.99 6 NA — —
19.2 20.833 +8.51 2 NA — —
38.4 31.25 -18.61 1 NA — —
57.6 62.5 +8.51 0 NA — —
115.2 NA — — NA — —
250 NA — — NA — —
625 NA — — NA — —
1250 NA — — NA — —