Sizing power-gated sections by constraining voltage droop

摘要

A method for powering up a circuit comprising a plurality of sections of progressively increasing size is described. The method comprises receiving a signal for powering up the circuit, and, in response to the signal, sequentially powering up the plurality of sections in an order of increasing size.

主权项

1. A method for sizing power-gated sections in a downstream circuit, the method comprising:
determining a capacitance for a first section based on a capacitance of an upstream circuit, and a voltage-droop constraint; determining a capacitance for a second section based on the capacitance of the upstream circuit, the voltage-droop constraint, and the determined capacitance for the first section; determining a capacitance for a third section based on the capacitance of the upstream circuit, the voltage-droop constraint, and the determined capacitances for the first and second sections; and determining a size for each of the first, second and third sections based on the determined capacitance for each of the sections.