7.1 Description of Device States

The ATWINC15x0-MR210xB has several device states:

• ON_Transmit – Device is actively transmitting an 802.11 signal. This is the highest output power and nominal current consumption.
• ON_Receive – Device is actively receiving an 802.11 signal. This is the lowest sensitivity and nominal current consumption.
• ON_Doze – Device is ON but is neither transmitting nor receiving.
• Power_Down – Device core supply off (Leakage).
• IDLE connect – Device is connected with 1 DTIM beacon interval.

The following pins are used to switch between the ON and Power_Down states:

• CHIP_EN – Device pin (pin #22) used to enable DC/DC Converter
• VDDIO – I/O supply voltage from external supply

  In the ON states, VDDIO is on and CHIP_EN is high (at VDDIO voltage level). To switch between the ON states and the Power_Down state, CHIP_EN has to change between high and low (GND) voltage. When VDDIO is off and CHIP_EN is low, the chip is powered off with no leakage (refer to Restrictions for Power States).