Datasheet

PIC12(L)F1840
DS40001441D-page 280  2011-2013 Microchip Technology Inc.
FIGURE 26-10: SYNCHRONOUS TRANSMISSION
FIGURE 26-11: SYNCHRONOUS TRANSMISSION (THROUGH TXEN)
TABLE 26-7: 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
269
INTCON GIE PEIE
TMR0IE INTE IOCIE TMR0IF INTF IOCIF
74
PIE1
TMR1GIE ADIE RCIE TXIE SSPIE CCP1IE TMR2IE TMR1IE
75
PIR1
TMR1GIF ADIF RCIF TXIF SSPIF CCP1IF TMR2IF TMR1IF
77
RCSTA SPEN
RX9 SREN CREN ADDEN FERR OERR RX9D
268
SPBRGL
BRG<7:0> 270*
SPBRGH
BRG<15:8> 270*
TXREG
EUSART Transmit Data Register
259*
TXSTA CSRC TX9 TXEN SYNC SENDB BRGH TRMT TX9D
267
Legend: — = unimplemented location, read as ‘0’. Shaded cells are not used for Synchronous Master Transmission.
* Page provides register information.
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