PIC18C658 MICROCHIP [Microchip Technology], PIC18C658 Datasheet - Page 176

• Manufacturer Part Number: PIC18C658
• Description: High-Performance Microcontrollers with CAN Module
• Manufacturer: MICROCHIP [Microchip Technology]

PIC18CXX8
FIGURE 16-5: ASYNCHRONOUS RECEPTION
TABLE 16-7:
DS30475A-page 176
Name
INTCON
PIR1
PIE1
IPR1
RCSTA
RCREG
TXSTA
SPBRG
Legend: x = unknown, - = unimplemented locations read as '0'. Shaded cells are not used for Asynchronous Reception.
RX (pin)
Rcv shift
reg
Rcv buffer reg
Read Rcv
buffer reg
RCREG
RCIF
(interrupt flag)
OERR bit
CREN
Note: This timing diagram shows three words appearing on the RX input. The RCREG (receive buffer) is read after the third word,
USART Receive Register
Baud Rate Generator Register
GIE/GIEH PEIE/GIEL TMR0IE
PSPIF
PSPIE
PSPIP
SPEN
CSRC
causing the OERR (overrun) bit to be set.
Bit 7
REGISTERS ASSOCIATED WITH ASYNCHRONOUS RECEPTION
START
bit
ADIF
ADIE
ADIP
Bit 6
RX9
TX9
bit0
bit1
SREN
TXEN
RCIF
RCIE
RCIP
Bit 5
Advanced Information
INT0IE
CREN
SYNC
bit7/8
Bit 4
TXIF
TXIE
TXIP
STOP
bit
ADDEN
SSPIF
SSPIE
SSPIP
RBIE
Bit 3
Word 1
RCREG
—
START
bit
TMR0IF
CCP1IE TMR2IE TMR1IE
CCP1IP TMR2IP TMR1IP
CCP1IF TMR2IF TMR1IF
bit0
BRGH
FERR
Bit 2
INT0IF
OERR
TRMT
Bit 1
bit7/8 STOP
Word 2
RCREG
RX9D
TX9D
bit
RBIF
Bit 0
START
 2000 Microchip Technology Inc.
bit
0000 000x
0000 0000
0000 0000
0000 0000
0000 -00x
0000 0000
0000 0010
0000 0000
Value on
POR,
BOR
bit7/8
STOP
0000 000u
0000 0000
0000 0000
0000 0000
0000 -00x
0000 0000
0000 0010
0000 0000
bit
Value on
RESETS
all other