Written Test and F2F are conducted in the same. It took half a day to complete the interview. Written test contains 30 questions - includes C,programming MCQ, Electronic circuits MCQ and Aptitude. F2F took one and half an hour. At some point of time regarding i2c arbitration interviewer was not clear what I was explaining. He was on his own assumptions so he was not in a condition in understand my explaination. I was clear on arbitration as per NXP spec but he was not clear I guess. This is the only reason I got negative feedback. But this only one of the question in one and half an hour. When I checked with HR he told panel is looking for still better candidates. First of all there questions for experienced are like for freshers with their own hard coded answers in mind. Even panel doesn’t know about startup code significance.