Manualshelf

Datasheet

ManualsBrandsMICROCHIP TECHNOLOGY ManualsMicrocontrollers, Microprocessors & QuartzesEmbedded microcontroller PDIP 40 8-Bit 40 MHz I/O number 33
151152153154155156157158159160
PIC18CXX2
DS39026D-page 152 1999-2013 Microchip Technology Inc.
TABLE 15-3: BAUD RATES FOR SYNCHRONOUS MODE
BAUD
RATE
(K)
F
OSC = 40 MHz FOSC = 20 MHz FOSC = 16 MHz FOSC = 10 MHz
Actual
Rate (K)
%
Error
SPBRG
value
(decimal)
Actua
l Rate
(K)
%
Error
SPBRG
value
(decimal)
Actual
Rate
(K)
%
Error
SPBRG
value
(decimal)
Actual
Rate
(K)
%
Error
SPBRG
value
(decimal)
0.3NA— —NA— —NA— —NA— —
1.2NA— —NA— —NA— —NA— —
2.4NA— —NA— —NA— —NA— —
9.6 NA — — NA — — NA — — 9.766 +1.73 255
19.2 NA — — 19.53 +1.73 255 19.23 +0.16 207 19.23 +0.16 129
76.8 76.92 0 129 76.92 +0.16 64 76.92 +0.16 51 75.76 -1.36 32
96 96.15 0 103 96.15 +0.16 51 95.24 -0.79 41 96.15 +0.16 25
300 303.03 -0.01 32 294.1 -1.96 16 307.69 +2.56 12 312.5 +4.17 7
500 500.00 0 19 500 0 9 500 0 7 500 0 4
HIGH 39.06 — 255 5000 — 0 4000 — 0 2500 — 0
LOW 10000.00 — 0 19.53 — 255 15.625 — 255 9.766 — 255
BAUD
RATE
(K)
F
OSC = 7.15909 MHz FOSC = 5.0688 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)
0.3 NA — — NA — — NA — —— NA — —
1.2NA— — NA— — NA— — NA— —
2.4NA— — NA— — NA— — NA— —
9.6 9.622 +0.23 185 9.6 0 131 9.615 +0.16 103 9.622 +0.23 92
19.2 19.24 +0.23 92 19.2 0 65 19.231 +0.16 51 19.04 -0.83 46
76.8 77.82 +1.32 22 79.2 +3.13 15 76.923 +0.16 12 74.57 -2.90 11
96 94.20 -1.88 18 97.48 +1.54 12 1000 +4.17 9 99.43 +3.57 8
300 298.3 -0.57 5 316.8 +5.60 3 NA — — 298.3 -0.57 2
500 NA — — NA — — NA — — NA — —
HIGH 1789.8 — 0 1267 — 0 100 — 0 894.9 — 0
LOW 6.991 — 255 4.950 — 255 3.906 — 255 3.496 — 255
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)
0.3 NA — — 0.303 +1.14 26
1.2 1.202 +0.16 207 1.170 -2.48 6
2.4 2.404 +0.16 103 NA — —
9.6 9.615 +0.16 25 NA — —
19.2 19.24 +0.16 12 NA — —
76.8 83.34 +8.51 2 NA — —
96 NA — — NA — —
300 NA — — NA — —
500 NA — — NA — —
HIGH 250 — 0 8.192 — 0
LOW 0.9766 — 255 0.032 — 255