Understanding the low power abstractionWe define four abstract models in common use today for electronic designelectrical, digital gate, digital RTL, and transactionaland discuss the relationships among them.
The new low-power model described by IEEE Std 1801-2009 UPF is introduced, and its relationship to the other signal-level models for digital and analog design is defined.
We then discuss the connections between the low-power model and the underlying physical implementation of a chip, elucidating some of the concepts in the low-power model that are missing from the commonly used abstract models.
We define extensions to the electrical/RTL boundary model to support application of the low-power model in mixed-model simulation.
Finally, we recommend extensions to the existing transaction model to reflect the concepts of the low-power model.
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This article was initially published on TechOnline.