Datasheet

 2010-2012 Microchip Technology Inc. DS41413C-page 307
PIC12(L)F1822/PIC16(L)F1823
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
296
INTCON GIE PEIE
TMR0IE INTE IOCIE TMR0IF INTF IOCIF
93
PIE1
TMR1GIE ADIE RCIE TXIE SSPIE CCP1IE TMR2IE TMR1IE
94
PIR1
TMR1GIF ADIF RCIF TXIF SSPIF CCP1IF TMR2IF TMR1IF
96
RCSTA SPEN RX9 SREN CREN ADDEN FERR OERR RX9D
295
SPBRGL
BRG<7:0> 297*
SPBRGH
BRG<15:8>
297*
TRISA
— —
TRISA5
(1)
TRISA4
(1)
TRISA3 TRISA2 TRISA1 TRISA0 126
TRISC
(2)
— —
TRISC5 TRISC4
TRISC3 TRISC2 TRISC1 TRISC0 130
TXREG
EUSART Transmit Data Register
287*
TXSTA CSRC TX9 TXEN SYNC SENDB BRGH TRMT TX9D
294
Legend: — = unimplemented location, read as ‘0’. Shaded cells are not used for Synchronous Master Transmission.
* Page provides register information.
Note 1: PIC12(L)F1822 only.
2: PIC16(L)F1823 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