at86rf211 ATMEL Corporation, at86rf211 Datasheet - Page 4

• Manufacturer Part Number: at86rf211
• Description: Fsk Transceiver For Ism Radio Applications
• Manufacturer: ATMEL Corporation

Figure 2. Wake-up Overview
Figure 3. Periodical Scan
4
Consumption
Sleep mode
Power
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
AT86RF211
Oscillator settling
Companion Microcontroller
Short reception window
Reception mode
Step 2: The chip wakes-up periodically,
waiting for an expected message
(stand-alone operation)
3
WAKEUP pin
Wake Up period
Data stored
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)
Header + Address
Wake-up mode
Data field
1942C–WIRE–06/02
Timing