1.1.7 ATWILC Power Management

  • Thin layer driver providing services for Bluetooth® Low Energy (BLE) stack and Wi-Fi® driver
  • Implements a character device interface to send commands to the BLE
  • Exports APIs for the Wi-Fi driver
  • Decides when to turn on and turn off the ATWILC device based on requests from Bluetooth and Wi‑Fi
  • Downloads BLE firmware to the ATWILC device’s Intelligent Random Access Memory (IRAM) using Serial Peripheral Interface (SPI) or Secure Digital Input Output (SDIO)