PIC18F258 Datasheet, PDF (178/384 Pages) Microchip Technology – High Performance, 28/40-Pin Enhanced FLASH Microcontrollers with CAN

PIC18FXX8
FIGURE 17-25:
SDA
BUS COLLISION TIMING FOR TRANSMIT AND ACKNOWLEDGE
Data changes
while SCL = 0
SDA line pulled low
by another source
SDA released
by master
Sample SDA. While SCL is high,
data doesn’t match what is driven
by the master.
Bus collision has occurred.
SCL
BCLIF
Set bus collision
interrupt (BCLIF)
DS41159B-page 176
Preliminary
 2002 Microchip Technology Inc.