Datasheet

 2010-2013 Microchip Technology Inc. DS40001430E-page 131
PIC16(L)F720/721
FIGURE 16-6: SYNCHRONOUS TRANSMISSION
FIGURE 16-7: SYNCHRONOUS TRANSMISSION (THROUGH TXEN)
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: Synchronous Master mode, SPBRG = 0, continuous transmission of two 8-bit words.
pin
TX/CK pin
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
TABLE 16-6: 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
INTCON GIE PEIE
TMR0IE INTE RABIE TMR0IF INTF RABIF 38
PIE1
TMR1GIE ADIE RCIE TXIE SSPIE CCP1IE TMR2IE TMR1IE 39
PIR1 TMR1GIF ADIF RCIF TXIF SSPIF CCP1IF TMR2IF TMR1IF 40
RCSTA SPEN
RX9 SREN CREN ADDEN FERR OERR RX9D 126
SPBRG BRG7 BRG6 BRG5 BRG4 BRG3 BRG2 BRG1 BRG0 127
TRISC TRISC7 TRISC6 TRISC5 TRISC4 TRISC3 TRISC2 TRISC1 TRISC0 61
TXREG
AUSART Transmit Data Register —
TXSTA CSRC TX9 TXEN SYNC — BRGH TRMT TX9D 125
Legend: x = unknown, - = unimplemented read as ‘0’. Shaded cells are not used for synchronous master
transmission.