Datasheet

© 2006 Microchip Technology Inc. DS39564C-page 177
PIC18FXX2
FIGURE 16-6: SYNCHRONOUS TRANSMISSION
FIGURE 16-7: SYNCHRONOUS TRANSMISSION (THROUGH TXEN)
bit 0 bit 1 bit 7
Word 1
Q1Q2 Q3Q4 Q1 Q2Q3 Q4Q1 Q2Q3 Q4Q1 Q2 Q3 Q4Q1 Q2 Q3Q4 Q3Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4Q1 Q2 Q3 Q4 Q1 Q2Q3 Q4Q1 Q2 Q3 Q4
bit 2 bit 0 bit 1 bit 7
RC7/RX/DT
RC6/TX/CK
Write to
TXREG Reg
TXIF bit
(Interrupt Flag)
TRMT
TXEN bit
'1' '1'
Word 2
TRMT bit
Write Word1
Write Word2
Note: Sync Master mode; SPBRG = '0'. Continuous transmission of two 8-bit words.
pin
pin
RC7/RX/DT pin
RC6/TX/CK pin
Write to
TXREG reg
TXIF bit
TRMT bit
bit0
bit1
bit2
bit6 bit7
TXEN bit