PIC16F1938_13 Datasheet, PDF (309/488 Pages) Microchip Technology – 28/40/44-Pin Flash-Based, 8-Bit CMOS Microcontrollers with LCD Driver

PIC16(L)F1938/9
FIGURE 25-10: SYNCHRONOUS TRANSMISSION
RX/DT
pin
TX/CK pin
(SCKP = 0)
bit 0
bit 1
bit 2
Word 1
TX/CK pin
(SCKP = 1)
Write to
TXREG Reg
TXIF bit
(Interrupt Flag)
Write Word 1
TRMT bit
Write Word 2
bit 7
bit 0
bit 1
Word 2
TXEN bit ^{‘1’}
Note:
Sync Master mode, SPBRGL = 0, continuous transmission of two 8-bit words.
FIGURE 25-11: SYNCHRONOUS TRANSMISSION (THROUGH TXEN)
RX/DT pin
bit 0
bit 1
bit 2
bit 6
TX/CK pin
Write to
TXREG reg
TXIF bit
bit 7
‘1’
bit 7
TRMT bit
TXEN bit
TABLE 25-7: 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
INTCON
GIE
PEIE
TMR0IE
INTE
IOCIE TMR0IF
INTF
IOCIF
PIE1
TMR1GIE ADIE
RCIE
TXIE
SSPIE CCP1IE TMR2IE TMR1IE
PIR1
TMR1GIF ADIF
RCIF
TXIF
SSPIF CCP1IF TMR2IF TMR1IF
RCSTA
SPEN
RX9
SREN
CREN ADDEN FERR
OERR
RX9D
SPBRGL
BRG<7:0>
SPBRGH
BRG<15:8>
TRISC
TRISC7 TRISC6 TRISC5 TRISC4 TRISC3 TRISC2 TRISC1 TRISC0
TXREG
EUSART Transmit Data Register
TXSTA
CSRC
TX9
TXEN
SYNC SENDB BRGH
TRMT
TX9D
Legend: — = unimplemented location read as ‘0’. Shaded cells are not used for synchronous master transmission.
* Page provides register information.
298
90
91
94
297
299*
299*
134
289*
296
 2011-2013 Microchip Technology Inc.
DS40001574C-page 309