PIC18F-LF1XK50 MICROCHIP [Microchip Technology], PIC18F-LF1XK50 Datasheet - Page 185

• Manufacturer Part Number: PIC18F-LF1XK50
• Description: 20-Pin USB Flash Microcontrollers
• Manufacturer: MICROCHIP [Microchip Technology]

FIGURE 16-3:
FIGURE 16-4:
TABLE 16-1:
 2010 Microchip Technology Inc.
INTCON
PIR1
PIE1
IPR1
RCSTA
TXREG
TXSTA
BAUDCON
SPBRGH
SPBRG
Legend: — = unimplemented locations read as ‘0’. Shaded cells are not used for asynchronous transmission.
(Interrupt Reg. Flag)
Reg. Empty Flag)
Reg. Empty Flag)
Note:
Reg. Empty Flag)
Write to TXREG
(Transmit Buffer
Name
Write to TXREG
(Transmit Shift
(Transmit Shift
BRG Output
(Shift Clock)
BRG Output
(Shift Clock)
RB7/TX/CK
RB7/TX/CK
TRMT bit
TRMT bit
TXIF bit
TXIF bit
This timing diagram shows two consecutive transmissions.
pin
EUSART Transmit Register
EUSART Baud Rate Generator Register, High Byte
EUSART Baud Rate Generator Register, Low Byte
pin
GIE/GIEH PEIE/GIEL TMR0IE
ABDOVF
CSRC
SPEN
Bit 7
REGISTERS ASSOCIATED WITH ASYNCHRONOUS TRANSMISSION
—
—
—
ASYNCHRONOUS TRANSMISSION
ASYNCHRONOUS TRANSMISSION (BACK-TO-BACK)
1 T
Word 1
Transmit Shift Reg
CY
Word 1
Transmit Shift Reg
Word 1
Word 1
RCIDL
ADIF
ADIE
ADIP
Bit 6
RX9
TX9
1 T
CY
Start bit
Start bit
Word 2
DTRXP
SREN
TXEN
RCIE
RCIP
RCIF
Bit 5
1 T
CY
bit 0
bit 0
Preliminary
CKTXP
INT0IE
CREN
SYNC
Bit 4
TXIF
TXIE
TXIP
bit 1
Word 1
bit 1
Word 1
ADDEN
SENDB
BRG16
RABIE
SSPIF
SSPIE
SSPIP
Bit 3
PIC18F/LF1XK50
TMR0IF
CCP1IF
CCP1IE
CCP1IP
BRGH
FERR
Bit 2
—
bit 7/8
bit 7/8
TMR2IF
TMR2IE
TMR2IP
Word 2
Transmit Shift Reg
INT0IF
OERR
TRMT
Stop bit
WUE
Bit 1
Stop bit
Start bit
TMR1IE
TMR1IP
TMR1IF
ABDEN
RABIF
RX9D
TX9D
DS41350E-page 185
Bit 0
Word 2
on page
Values
Reset
bit 0
285
288
288
288
287
287
287
287
287
287