System on Chip Interfaces for Low Power Design
System on Chip Interfaces for Low Power Design provides a top-down understanding of interfaces available to SoC developers, not only the underlying protocols and architecture of each, but also how they interact and the tradeoffs involved. The book offers a common context to help understand the variety of available interfaces and make sense of technology from different vendors aligned with multiple standards. With particular emphasis on power as a factor, the authors explain how each interface performs in various usage scenarios and discuss their advantages and disadvantages. Readers learn to make educated decisions on what interfaces to use when designing systems and gain insight for innovating new/custom interfaces for a subsystem and their potential impact.
- Provides a top-down guide to SoC interfaces for memory, multimedia, sensors, display, and communication
- Explores the underlying protocols and architecture of each interface with multiple examples
- Guides through competing standards and explains how different interfaces might interact or interfere with each other
- Explains challenges in system design, validation, debugging and their impact on development
Why Read This Book
You will learn how different on-chip interfaces behave in real-world systems and how their protocol, buffering, and topology choices impact energy consumption and system-level power. The book gives you practical criteria for selecting or designing interfaces so you can make informed, energy-aware tradeoffs in SoC, embedded, and IoT designs.
Who Will Benefit
Embedded and SoC engineers, firmware architects, and system designers with some hardware/software background who need to choose or optimize interfaces for low-power products.
Level: Advanced — Prerequisites: Solid grasp of digital logic and microprocessor basics, familiarity with common peripheral buses (e.g., SPI, I2C, UART) and memory systems, and basic understanding of power-management concepts like clock gating and power domains.
Key Takeaways
- Evaluate interface options by quantifying latency, throughput, power, and area tradeoffs for typical usage scenarios.
- Design or choose on-chip interconnects (bus, crossbar, NoC) and arbitration strategies with low-power operation in mind.
- Model and estimate interface-level energy costs and use measurements to validate power projections.
- Apply low-power techniques (clock gating, power domains, DVFS, link low-power states) across interfaces and subsystems.
- Architect DMA, buffering, and protocol translation to minimize active time and maximize low-power residency.
- Specify wake-up, idle, and sleep behaviors in hardware/software to minimize end-to-end system energy.
Topics Covered
- 1. Introduction: Interfaces and the Importance of Power in SoCs
- 2. Fundamentals of Interface Design: Transactions, Timing, and Topology
- 3. Low-Power Principles: Power Domains, Clocking, and DVFS
- 4. Peripheral and Control Interfaces: UART, SPI, I2C, GPIO, CAN
- 5. Storage and Memory Interfaces: NOR/NAND, eMMC, SD, DDR/LPDDR
- 6. High-Speed Serial and Multimedia Interfaces: USB, PCIe, Ethernet, MIPI
- 7. On-Chip Interconnects and Networks-on-Chip: Buses, Crossbars, and NoC
- 8. DMA, Buffers, and Flow Control for Energy Efficiency
- 9. Protocol Tradeoffs: Latency vs. Throughput vs. Power
- 10. Power-Aware Interface Modeling and Measurement Techniques
- 11. Firmware and OS Considerations for Interface Power Management
- 12. Case Studies and Vendor Standards Interoperability
- 13. Emerging Trends and Custom Interface Design
Languages, Platforms & Tools
How It Compares
Compared with Steve Furber's ARM System-on-Chip Architecture, Mishra focuses less on CPU internals and more on interface protocols and their power tradeoffs; compared to academic Networks-on-Chip texts, this book emphasizes practical, cross‑standard interface decisions and energy-aware system integration.
