Introduction - 2021.2 English

Zynq UltraScale+ MPSoC Software Developer Guide

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2021.2 English

The Zynq® UltraScale+™ MPSoC is the industry's first heterogeneous multiprocessor SoC (MPSoC) that combines multiple user programmable processors, FPGA, and advanced power management capabilities.

Modern power efficient designs requires usage of complex system architectures with several hardware options to reduce power consumption as well as usage of a specialized CPU to handle all power management requests coming from multiple masters to power on, power off resources and handle power state transitions. The challenge is to provide an intelligent software framework that complies to industry standard (IEEEP2415) and is able to handle all requests coming from multiple CPUs running different operating systems.

Xilinx has created the Power Management Framework (PMF) to support a flexible power management control through the platform management unit (PMU).

This Power Management Framework handles several use case scenarios. For example, Linux provides basic power management capabilities such as idle, hotplug, suspend, resume, and wakeup. The kernel relies on the underlining APIs to execute power management decisions, but most RTOSes do not have this capability. Therefore they rely on user implementation, which is made easier with use of the Power Management Framework.

Industrial applications such as embedded vision, Advanced Driver Assistance, surveillance, portable medical, and Internet of Things (IoT) are ramping up their demand for

high-performance heterogeneous SoCs, but they have a tight power budget. Some of the applications are battery operated, and battery life is a concern. Some others such as cloud and data center have demanding cooling and energy cost, not including their need to reduce environmental cost. All of these applications benefit from a flexible power management solution.