AT86RF212 Atmel Corporation, AT86RF212 Datasheet - Page 14

• Manufacturer Part Number: AT86RF212
• Manufacturer: Atmel Corporation

Specifications of AT86RF212

• Max. Operating Frequency: 0 MHz
• Crypto Engine: AES
• Operating Voltage (vcc): 1.8 to 3.6
• Frequency Band: 700/800/900MHz
• Max Data Rate (mb/s): 1
• Antenna Diversity: No
• External Pa Control: Yes
• Power Output (dbm): 10
• Receiver Sensitivity (dbm): -110
• Receive Current Consumption (ma): 9.0
• Transmit Current Consumption (ma): 18 at 5dBm
• Link Budget (dbm): 120

4 Microcontroller Interface
4.1 Overview
14
AT86RF212
This section describes the AT86RF212 to microcontroller interface. The interface
comprises a slave SPI and additional control signals; see Figure 4-1. The SPI timing
and protocol are described below.
Figure 4-1. Microcontroller to AT86RF212 Interface
Microcontrollers with a master SPI such as Atmel’s AVR family interface directly to the
AT86RF212. The SPI is used for register, Frame Buffer, SRAM, and AES access. The
additional control signals are connected to the GPIO/IRQ interface of the
microcontroller. Table 4-1 introduces the radio transceiver I/O signals.
Table 4-1. Signal Description of Microcontroller Interface
Signal
/SEL
MOSI
MISO
SCLK
CLKM
IRQ
SLP_TR
/RST
DIG2
Description
SPI select signal, active low
SPI data (Master Output, Slave Input) signal
SPI data (Master Input, Slave Output) signal
SPI clock signal
Clock output (refer to section 7.7.4), usable as
Interrupt request signal, further used as
Multi purpose control signal (refer to section 4.6):
AT86RF212 reset signal; active low
Multi purpose control signal, amongst others to signal the reception of a frame;
refer to section 9.5.
- microcontroller clock source
- high precision timing reference
- MAC timer reference.
- Frame Buffer Empty indicator; refer to section 9.6.
- Sleep/Wakeup
- TX start
- disable/enable CLKM
8168C-MCU Wireless-02/10