SWRA779 September   2023 CC3300 , CC3301

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Main Features
    1. 2.1 Dual Host Interface
    2. 2.2 Shared Host Interface
    3. 2.3 Autonomous Mode
    4. 2.4 Host Interrupt
      1. 2.4.1 Out-of-Band Interrupt
      2. 2.4.2 In-Band Interrupt
  6. 3Interfaces
    1. 3.1 Introduction
    2. 3.2 SDIO Interface
      1. 3.2.1 SDIO Overview
      2. 3.2.2 SDIO Flow Control
    3. 3.3 SPI Interface
      1. 3.3.1 SPI Overview
      2. 3.3.2 SPI Configuration
      3. 3.3.3 SPI Flow Control
    4. 3.4 Uart Interface
      1. 3.4.1 UART Overview
      2. 3.4.2 UART Configuration
      3. 3.4.3 UART Flow Control
    5. 3.5 Pin Count Options
  7. 4Host Communication
    1. 4.1 Protocol Overview
    2. 4.2 SDIO Wrapper
    3. 4.3 SPI Wrapper
  8. 5Boot Flow
    1. 5.1 SDIO
    2. 5.2 SPI

2.3 Autonomous Mode

Autonomous mode refers to ability of the device to go to sleep and wakeup without informing the host processor and is supported on all interfaces. Autonomous mode uses an internal buffer that is always on and ready to receive data, even when the device is in sleep. This is mandatory so the device does not loose data. When data is received during sleep, the device makes use of flow control mechanism to stop data from the host processor until the device is fully awake. This mode is seamless to the host processor and the device may look as if it is always awake. Autonomous mode is a real time mechanism and can even be triggered in between non-consecutive frames, making it optimal in terms of power consumption.