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).