PIC18C242 MICROCHIP [Microchip Technology], PIC18C242 Datasheet - Page 162

• Manufacturer Part Number: PIC18C242
• Description: High-Performance Microcontrollers with 10-Bit A/D
• Manufacturer: MICROCHIP [Microchip Technology]

PIC18CXX2
FIGURE 15-6: SYNCHRONOUS TRANSMISSION
FIGURE 15-7: SYNCHRONOUS TRANSMISSION (THROUGH TXEN)
DS39026B-page 162
RC7/RX/DT pin
RC6/TX/CK pin
Write to
TXREG reg
TXIF bit
(Interrupt flag)
TRMT bit
TXEN bit
TRMT
RC7/RX/DT pin
RC6/TX/CK pin
Note: Sync master mode; SPBRG = ’0’. Continuous transmission of two 8-bit words
Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4
’1’
TXREG reg
TRMT bit
TXEN bit
TXIF bit
Write to
Write word1
Bit 0
Write word2
WORD 1
Bit 1
bit0
Bit 2
Preliminary
bit1
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
bit2
Bit 0
WORD 2
Bit 1
bit6
7/99 Microchip Technology Inc.
bit7
Bit 7
’1’