AT86RF232 Atmel Corporation, AT86RF232 Datasheet - Page 14

• Manufacturer Part Number: AT86RF232
• Manufacturer: Atmel Corporation

Specifications of AT86RF232

• Max. Operating Frequency: 0 MHz
• Crypto Engine: AES
• Operating Voltage (vcc): 1.8 to 3.6
• Frequency Band: 2.4 GHz
• Max Data Rate (mb/s): 0.25
• Antenna Diversity: Yes
• External Pa Control: Yes
• Power Output (dbm): 3
• Receiver Sensitivity (dbm): -100
• Receive Current Consumption (ma): 11.8
• Transmit Current Consumption (ma): 13.8
• Link Budget (dbm): 103

6 Microcontroller Interface
14
AT86RF232
This section describes the Atmel AT86RF232 to microcontroller interface. The interface
comprises a slave SPI and additional control signals; see
and protocol are described below.
Figure 6-1. Microcontroller to AT86RF232 Interface.
Microcontrollers with a master SPI such as Atmel AVR family interface directly to the
AT86RF232. 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.
functionality.
Table 6-1. Signal Description of Microcontroller Interface.
Signal
/SEL
MOSI
MISO
SCLK
CLKM
IRQ
SLP_TR
/RST
DIG2
Microcontroller
GPIO1/CLK
GPIO2/IRQ
GPIO3
GPIO4
GPIO5
Description
SPI select signal, active low
SPI data (master output slave input) signal
SPI data (master input slave output) signal
SPI clock signal
Optional, Clock output, refer to
Interrupt request signal, further used as:
Multi purpose control signal (functionality is state dependent, see
AT86RF232 reset signal, active low
Optional,
SCLK
MOSI
MISO
/SEL
Table 6-1
- microcontroller clock source
- high precision timing reference
- Frame Buffer Empty indicator, refer to
- Sleep/Wakeup
- TX start
- IRQ_2 (RX_START) for RX Frame Time Stamping, see
- Signals frame transmit within TX_ARET mode for TX Time Stamping
introduces the radio transceiver I/O signals and their
SLP_TR
CLKM
MOSI
MISO
SCLK
/RST
/SEL
SPI
IRQ
Section
enable/disable SLEEP state
BUSY_TX_(ARET) state
AT86RF232
MOSI
MISO
SCLK
CLKM
IRQ
SLP_TR
/RST
/SEL
DIG2
9.6.4, usable as:
Section 11.5
Figure
8321A–MCU Wireless–10/11
6-1. The SPI timing
Section
Section 11.4
6.5):