Datasheet

 2013-2015 Microchip Technology Inc. DS40001723D-page 197
PIC12(L)F1571/2
FIGURE 21-10: SYNCHRONOUS TRANSMISSION
FIGURE 21-11: SYNCHRONOUS TRANSMISSION (THROUGH TXEN)
TABLE 21-7: SUMMARY OF REGISTERS ASSOCIATED WITH SYNCHRONOUS MASTER
TRANSMISSION
Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Register
on Page
BAUDCON
ABDOVF RCIDL — SCKP BRG16 — WUE ABDEN 186
INTCON GIE PEIE
TMR0IE INTE IOCIE TMR0IF INTF IOCIF 74
PIE1
TMR1GIE ADIE RCIE
(1)
TXIE
(1)
— — TMR2IE TMR1IE 75
PIR1
TMR1GIF ADIF RCIF
(1)
TXIF
(1)
— — TMR2IF TMR1IF 78
RCSTA SPEN
RX9 SREN CREN ADDEN FERR OERR RX9D 185
SPBRGL BRG<7:0> 187*
SPBRGH BRG<15:8> 187*
TXREG
EUSART Transmit Data Register 177*
TXSTA CSRC TX9 TXEN SYNC SENDB BRGH TRMT TX9D 184
Legend: — = unimplemented location, read as ‘0’. Shaded cells are not used for synchronous master transmission.
* Page provides register information.
Note 1: PIC12(L)F1572 only.
bit 0 bit 1 bit 7
Word 1
bit 2 bit 0 bit 1 bit 7
RX/DT
Write to
TXREG Reg
TXIF bit
(Interrupt Flag)
TXEN bit
‘1’
‘1’
Word 2
TRMT bit
Write Word 1 Write Word 2
Note: Sync Master mode, SPBRGL = 0, continuous transmission of two 8-bit words.
Pin
TX/CK Pin
TX/CK Pin
(SCKP =
0 )
(SCKP =
1 )
RX/DT Pin
TX/CK Pin
Write to
TXREG Reg.
TXIF bit
TRMT bit
bit 0 bit 1 bit 2 bit 6 bit 7
TXEN bit