There are some inescapable truths in electronics design: The more challenges we overcome, the more we want to confront new ones and topple them.
Today, we know, the level of complexity for most designs is staggering. To achieve our cost and form factor design goals, we are deep into the era of mixed-signal design and system integration. Complex systems-on-chip (SoC) not only have to include blocks of digital and analog circuits, but they must be verified now together, not separately.
The prior methodologies of integrating and verifying this IP--black box IP, whether digital or analog--is no more because engineers must understand the functionality of the complete system, including how each "black box" is interacting with its neighbors and the larger system.
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