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Understanding UJA1023 basic operation example 1

Question asked by Alan Karna on Mar 5, 2018
Latest reply on Mar 7, 2018 by Petr Stancik

My question is on the UJA1023 chip spec sheet, Example 1 on page 22 of 49.


New to LIN, though I have studied other protocols and I think I understand most of the message structure.


This example is almost exactly what I'm looking for in my application. I want to set the chip for 8 outputs and be able to switch on any combination of those outputs that I want.  I'm working to understand the first 10 lines and the configuration that is required for the chip. Haven't decided if I want them HSE or LSE yet, but that appears easy enough to configure. Looks like I want level set for all. Don't need PWM.


My question is after the first 10 lines. There is no NAD in the following 8 lines. How does the slave chip know it is the receiver of these messages?