Abstract

This publication describes systems and techniques to manage power for dynamic memory interfaces within system-on-chip architectures.  In some implementations, memory paths utilize discrete operating frequencies.  The described systems introduce a hardware-driven synchronization and dynamic voltage and frequency scaling (DVFS) mechanism that adjusts the active time of a memory interface based on real-time utilization.  By operating the memory interface and associated requestor blocks at an elevated speed for a compressed burst period, and subsequently power-gating these components, a variable offline period is created.  This synchronization effectively yields a continuous spectrum of bandwidth scaling levels.  The hardware-driven approach coordinates active and inactive phases across the system to enhance memory path energy efficiency and manage thermal output while accommodating components with real-time operational constraints.

Creative Commons License

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.

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