Microchip Technology AC244055 Data Sheet
2011-2013 Microchip Technology Inc.
DS40001574C-page 309
PIC16(L)F1938/9
FIGURE 25-10:
SYNCHRONOUS TRANSMISSION
FIGURE 25-11:
SYNCHRONOUS TRANSMISSION (THROUGH TXEN)
TABLE 25-7:
SUMMARY OF REGISTERS ASSOCIATED WITH SYNCHRONOUS MASTER
TRANSMISSION
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.
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