PIC16LF1526 Datasheet, PDF (259/354 Pages) Microchip Technology – 64-Pin Flash Microcontrollers with nanoWatt XLP Technology

PIC16(L)F1526/27
FIGURE 22-4:
Write to TXxREG
BRG Output
(Shift Clock)
TXx/CKx pin
TXxIF bit
(Interrupt Reg. Flag)
TRMT bit
(Transmit Shift
Reg. Empty Flag)
ASYNCHRONOUS TRANSMISSION (BACK-TO-BACK)
Word 1
Word 2
1 TCY
Start bit
Word 1
Transmit Shift Reg
bit 0
1 TCY
bit 1
Word 1
bit 7/8 _{Stop bit}
Start bit
bit 0
Word 2
Word 2
Transmit Shift Reg
Note:
This timing diagram shows two consecutive transmissions.
TABLE 22-1: REGISTERS ASSOCIATED WITH ASYNCHRONOUS TRANSMISSION
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Register
on page
BAUD1CON ABDOVF RCIDL
—
SCKP BRG16
—
WUE
ABDEN
266
BAUD2CON ABDOVF RCIDL
—
SCKP BRG16
—
WUE
ABDEN
266
INTCON
GIE
PEIE
TMR0IE
INTE
IOCIE TMR0IF
INTF
IOCIF
93
PIE1
TMR1GIE ADIE
RC1IE
TX1IE SSP1IE CCP1IE TMR2IE TMR1IE
94
PIE4
CCP10IE CCP9IE RC2IE
TX2IE CCP8IE CCP7IE BCL2IE SSP2IE
97
PIR1
TMR1GIF ADIF
RC1IF
TX1IF SSP1IF CCP1IF TMR2IF TMR1IF
98
PIR4
RC1STA
RC2STA
SP1BRGL
CCP10IF
SPEN
SPEN
CCP9IF
RX9
RX9
RC2IF
TX2IF CCP8IF CCP7IF
SREN
CREN ADDEN FERR
SREN
CREN ADDEN FERR
EUSART1 Baud Rate Generator, Low Byte
BCL2IF
OERR
OERR
SSP2IF
RX9D
RX9D
97
265
265
267*
SP1BRGH
EUSART1 Baud Rate Generator, High Byte
267*
SP2BRGL
EUSART2 Baud Rate Generator, Low Byte
267*
SP2BRGH
EUSART2 Baud Rate Generator, High Byte
267*
TX1REG
EUSART1 Transmit Register
257*
TX1STA
TX2REG
TX2STA
Legend:
*
CSRC
TX9
TXEN
SYNC SENDB BRGH
TRMT
TX9D
EUSART2 Transmit Register
CSRC
TX9
TXEN
SYNC SENDB BRGH
TRMT
TX9D
— = unimplemented locations, read as ‘0’. Shaded bits are not used for asynchronous transmission.
Page provides register information.
264
257*
264
 2011 Microchip Technology Inc.
Preliminary
DS41458A-page 259