upf interview questions

RTL Simulation Vs Power Aware UPF Simulation

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FAQ

Why do we need UPF in VLSI?

The Unified Power Format (. upf) is an IEEE standard which is used to define the power and related aspects of multi voltage design. UPF contains supply set definition, power domain definition, power switch definition, retention cell definition, level shifter cell definition and other low power related definition.

What is UPF file in VLSI?

Unified Power Format (UPF) is an industry wide power format specification to implement low power techniques in a design flow. UPF is designed to reflect the power intent of a design at a relatively high level.

What is power domain in VLSI?

In CPF, a power domain is a collection of gates powered by the same power and ground supply. This definition is based on electrical connection. The terms “voltage island” and “power island” mean exactly the same thing. In UPF 1.0, “power domain” refers to a logical hierarchy in the design.

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