Datasheet

 2012 Microchip Technology Inc. DS30684A-page 283
PIC18(L)F2X/45K50
TABLE 17-4: REGISTERS ASSOCIATED WITH BAUD RATE GENERATOR
Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Register
on page
BAUDCON1
ABDOVF RCIDL RXDTP TXCKP BRG16 — WUE ABDEN 281
PMD0
— UARTMD USBMD ACTMD — TMR3MD TMR2MD TMR1MD 64
RCSTA1 SPEN
RX9 SREN CREN ADDEN FERR OERR RX9D 280
SPBRG1 EUSART Baud Rate Generator, Low Byte
—
SPBRGH1 EUSART Baud Rate Generator, High Byte
—
PIR1 ACTIF ADIF RCIF TXIF SSPIF CCP1IF TMR2IF TMR1IF 123
TXSTA1
CSRC TX9 TXEN SYNC SENDB BRGH TRMT TX9D 279
Legend: — = unimplemented, read as ‘0’. Shaded bits are not used by the BRG.
TABLE 17-5: BAUD RATES FOR ASYNCHRONOUS MODES
BAUD
RATE
SYNC = 0, BRGH = 0, BRG16 = 0
F
OSC = 48.000 MHz FOSC = 18.432 MHz FOSC = 16.000 MHz FOSC = 11.0592 MHz
Actual
Rate
%
Error
SPBRxG
value
(decimal)
Actual
Rate
%
Error
SPBRGx
value
(decimal)
Actual
Rate
%
Error
SPBRGx
value
(decimal)
Actual
Rate
%
Error
SPBRGx
value
(decimal)
300 — — — — — — — — — — — —
1200
—— —
1200 0.00 239 1202 0.16 207 1200 0.00 143
2400
—— —
2400 0.00 119 2404 0.16 103 2400 0.00 71
9600 9615 0.16 77 9600 0.00 29 9615 0.16 25 9600 0.00 17
10417 10417 0.00 71 10286 -1.26 27 10417 0.00 23 10165 -2.42 16
19.2k 19.23k 0.16 38 19.20k 0.00 14 19.23k 0.16 12 19.20k 0.00 8
57.6k
57.69k 0.16 12 57.60k
0.00
7
—— —
57.60k
0.00 2
115.2k — — — — — — — — — — — —
BAUD
RATE
SYNC = 0, BRGH = 0, BRG16 = 0
F
OSC = 8.000 MHz
F
OSC = 4.000 MHz FOSC = 3.6864 MHz FOSC = 1.000 MHz
Actual
Rate
%
Error
SPBRGx
value
(decimal)
Actual
Rate
%
Error
SPBRGx
value
(decimal)
Actual
Rate
%
Error
SPBRGx
value
(decimal)
Actual
Rate
%
Error
SPBRGx
value
(decimal)
300 — — — 300 0.16 207 300
0.00
191 300 0.16 51
1200 1202 0.16 103 1202 0.16 51 1200 0.00 47 1202 0.16 12
2400 2404 0.16 51 2404 0.16 25 2400 0.00 23 — — —
9600 9615 0.16 12 — — — 9600 0.00 5 — — —
10417 10417 0.00 11 10417 0.00 5 — — — — — —
19.2k — — — — — — 19.20k 0.00 2 — — —
57.6k — — — — — —
57.60k
0.00 0 — — —
115.2k — — — — — — — — — — — —