Rainbow-electronics AT86RF211 User Manual download pdf (Page 4)

AT86RF211

1942C–WIRE–06/02

Figure 2. Wake-up Overview

Figure 3. Periodical Scan

Header + Address

Step 3: If a correct header is received (mandatory)

and address matches (if any), the data field

is then stored into AT86RF211 and WAKEUP pin is

activated (to wake-up the Microcontroller).

The Microcontroller will then read the data into one

of its registers, and begin a relevant procedure.

Note: Data field is optional: the chip can be simply

woken-up with no dedicated data.

AT86RF211 (TRX01)

Wake-up mode

Companion Microcontroller

WAKEUP pin

Step 2: The chip wakes-up periodically,

waiting for an expected message

(stand-alone operation)

Step 1: The chip is set up in sleep mode

using the 3-wire interface (SLE, SCK,

SDATA), then Microcontroller goes to sleep,

waiting for an interrupt on WAKEUP pin

Data stored

Data field

Reception mode

Short reception window

Oscillator settling

Sleep mode

Wake Up period

Timing

Power

Consumption

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Rainbow-electronics AT86RF211 User Manual Page 4