Introduction#

The SiWG917 System on Chip (SoC) delivers ultra-low power consumption without compromising on performance. This application note delves into the advanced features and design strategies that enable the SiWG917 to achieve exceptional power efficiency.

The SiWG917 integrates two processors: Silicon Labs' ThreadArch® (TA) as the Network Wireless Processor and the ARM® Cortex® M4 Processor as the Microcontroller Unit (MCU). By leveraging Dynamic Voltage and Frequency Scaling, meticulous optimization, and a hierarchical design approach, the SiWG917 ensures optimal power management across all components. This dual-processor architecture allows the networking and wireless stacks to operate independently on the Wireless Processor, while the MCU is dedicated to handling peripheral and application-related tasks.

This document aims to provide a comprehensive overview of the SiWG917's low-power capabilities, offering insights into its architecture, design considerations, and practical applications. Whether you are developing battery-operated devices or seeking to enhance the energy efficiency of your existing systems, the SiWG917 offers a robust solution tailored to meet your needs.

Note: Throughout this document, the Network Wireless Processor, Cortex-M4, and SiWG917 shall be referred to as NWP, M4, and SoC respectively.