PIC18F2480 MICROCHIP [Microchip Technology], PIC18F2480 Datasheet - Page 241

• Manufacturer Part Number: PIC18F2480
• Description: 28/40/44-Pin Enhanced Flash Microcontrollers with ECAN Technology, 10-Bit A/D and nanoWatt Technology
• Manufacturer: MICROCHIP [Microchip Technology]

FIGURE 18-7:
TABLE 18-6:
 2004 Microchip Technology Inc.
INTCON
PIR1
PIE1
IPR1
RCSTA
RCREG
TXSTA
BAUDCON
SPBRGH
SPBRG
Legend: — = unimplemented locations read as ‘0’. Shaded cells are not used for asynchronous reception.
Note 1:
Name
RX (pin)
Rcv Shift Reg
Rcv Buffer Reg
Read Rcv
Buffer Reg
RCREG
RCIF
(Interrupt Flag)
OERR bit
CREN
Note:
Reserved in PIC18F2X80 devices; always maintain these bits clear.
EUSART Receive Register
EUSART Baud Rate Generator Register, High Byte
EUSART Baud Rate Generator Register, Low Byte
This timing diagram shows three words appearing on the RX input. The RCREG (receive buffer) is read after the third word
causing the OERR (overrun) bit to be set.
GIE/GIEH PEIE/GIEL TMR0IE
ABDOVF
PSPIF
PSPIE
PSPIP
CSRC
SPEN
Bit 7
REGISTERS ASSOCIATED WITH ASYNCHRONOUS RECEPTION
ASYNCHRONOUS RECEPTION
(1)
(1)
(1)
Start
bit
bit 0
RCIDL
ADIF
ADIE
ADIP
Bit 6
RX9
TX9
bit 1
SREN
TXEN
RCIE
RCIP
RCIF
Bit 5
—
PIC18F2480/2580/4480/4580
bit 7/8
Preliminary
Stop
INT0IE
CREN
SYNC
SCKP
bit
TXIE
TXIP
Bit 4
TXIF
Word 1
RCREG
Start
bit
ADDEN
SENDB
bit 0
BRG16
SSPIE
SSPIP
SSPIF
RBIE
Bit 3
TMR0IF
CCP1IE
CCP1IP
CCP1IF
bit 7/8
BRGH
Word 2
RCREG
FERR
Bit 2
—
Stop
bit
TMR2IE
TMR2IP
TMR2IF
INT0IF
OERR
TRMT
Start
WUE
Bit 1
bit
TMR1IF
TMR1IE
TMR1IP
ABDEN
RX9D
bit 7/8
TX9D
RBIF
DS39637A-page 239
Bit 0
Stop
bit
on page
Values
Reset
49
52
52
52
51
51
51
51
51
51