Process is simple, be true to yourself and should be good for embedded programming. You should be well aware of architecture and basic data structure questions. There were 3 rounds and each round had 2 panelists.

1st telephonic : more about ur work and how relevent it is to the work they do 3tech : all tech question like how OOO works, how branch misprediction is handled in OOO, then explain paging who VA-PA translation happens what all cases hardware take care of TLB invalidation and when does user need to do 1HR : salary discussion its bit slow process but one thing which was good is once ur tech round it done and if its positive u will get results really quick thats in day or max 2