PIC18F452-IPT Datasheet, PDF (179/332 Pages) Microchip Technology – High-Performance, Enhanced Flash Microcontrollers with 10-Bit A/D

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