SPRUJ17I March 2022 – August 2025 AM2631 , AM2631-Q1 , AM2632 , AM2632-Q1 , AM2634 , AM2634-Q1
The LIN protocol defines the following timeouts for a wakeup sequence. After a wakeup signal has been sent to the bus, all nodes wait for the commander to send a header. If no sync field is detected before 150ms (3,000 cycles at 20kHz) after a wakeup signal is transmitted, a new wakeup is sent by the same node that requested the first wakeup. This sequence is not repeated more than two times. After three attempts to wake up the LIN bus, wakeup signal generation is suspended for a 1.5s (30,000 cycles at 20kHz) period after three breaks.
The LIN handles the wakeup expiration times defined by the LIN protocol with a hardware implementation.