Sleep State Operational Mode#

The SiWx917’s Sleep state operational mode is called Ultra-low Power Mode with RAM Retention.

Ultra-Low Power Mode with RAM RetentionUltra-Low Power Mode with RAM Retention

  • In the Ultra-low Power mode with RAM Retention, the Wireless Modem, NWP, Security, and Host Interface power domains are powered-off. The SRAM contents and its current state are retained.

  • The PMU has control over the other sections of the chip.

  • The always-on logic domain operates on a lowered supply and a 32 kHz low-frequency clock to reduce power consumption.

  • The SiWx917 RCP's Host Interface is inactive and thereby the interface is activated each time SiWx917 wakes up.