Power Domains#

The following block diagram illustrates various power domains of the SiWx917 chip in NCP mode.

SiWx917 Power DomainsSiWx917 Power Domains

The power domains of SiWx917 in NCP mode are:

  • ThreadArch® Network Processor (hereafter referred to as "NWP"): The multi-threaded processor that runs wireless and network stacks on independent threads.

  • Power Management Unit (hereafter referred to as PMU): Responsible for supplying power required by various sections of SiWx917.

  • Security: Contains security feature blocks like hardware accelerators, secure firmware update, etc.

  • Wireless Peripherals: Contains various on-chip peripherals such as LED, UART, JTAG etc.,

  • Host Interface Peripherals: Contains SDIO, UART, and SPI peripherals.