PIC18F2510 MICROCHIP [Microchip Technology], PIC18F2510 Datasheet - Page 203

• Manufacturer Part Number: PIC18F2510
• Description: 28/40/44-PIN FLASH MICROCONTROLLERS WITH 10-BIT A/D AND NANO WATT TECHNOLOGY
• Manufacturer: MICROCHIP [Microchip Technology]

FIGURE 17-4:
FIGURE 17-5:
TABLE 17-5:
 2004 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.
Note 1:
(Interrupt Reg. Flag)
Note: This timing diagram shows two consecutive transmissions.
Reg. Empty Flag)
Reg. Empty Flag)
Reg. Empty Flag)
Write to TXREG
(Transmit Buffer
Name
Write to TXREG
(Transmit Shift
(Transmit Shift
BRG Output
(Shift Clock)
BRG Output
(Shift Clock)
TRMT bit
TRMT bit
TXIF bit
TXIF bit
These bits are unimplemented on 28-pin devices and read as ‘0’.
(pin)
(pin)
TX
EUSART Transmit Register
EUSART Baud Rate Generator Register, High Byte
EUSART Baud Rate Generator Register, Low Byte
TX
GIE/GIEH PEIE/GIEL TMR0IE
ABDOVF
PSPIE
PSPIP
PSPIF
SPEN
CSRC
Bit 7
REGISTERS ASSOCIATED WITH ASYNCHRONOUS TRANSMISSION
(1)
(1)
(1)
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
ADIE
ADIP
ADIF
Bit 6
RX9
TX9
1 T
CY
Start bit
Start bit
Word 2
SREN
TXEN
RCIF
RCIE
RCIP
Bit 5
—
1 T
CY
bit 0
bit 0
Preliminary
INT0IE
CREN
SYNC
SCKP
Bit 4
TXIF
TXIE
TXIP
bit 1
Word 1
bit 1
Word 1
ADDEN
SENDB
BRG16
SSPIE
SSPIP
SSPIF
RBIE
Bit 3
PIC18F2X1X/4X1X
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
RX9D
DS39636A-page 201
TX9D
RBIF
Bit 0
Word 2
on page
Values
Reset
bit 0
49
52
52
52
51
51
51
51
51
51