原标题：Atmel ATmega128RFA1无线控制板(RCB)解决方案

　　Atmel公司的ATmega128RFA1是基于AVR增强型RISC架构的低功耗CMOS 8位MCU和2.4 GHz ISM高速数据收发器,具有135条指令,32x8通用工作寄存器,全静态操作,工作电压1.8V 到3.6V,主要用在ZigBee® / IEEE 802.15.4-2006/2003™ FFD/RFD,通用2.4GHz ISM频带收发器, RF4CE, SP100, WirelessHART和IPv6 / 6LoWPAN.本文介绍了ATmega128RFA1主要特性, 方框图, 基本和扩展应用电路,材料清单以及RCB键控评估板方框图,电路图和材料清单.

　　The ATmega128RFA1 is a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC architecture combined with a high data rate transceiver for the 2.4 GHz ISM band. It is derived from the ATmega1281 microcontroller and the AT86RF231 radio transceiver.

　　By executing powerful instructions in a single clock cycle, the device achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed.

　　The radio transceiver provides high data rates from 250 kb/s up to 2 Mb/s, frame handling, outstanding receiver sensitivity and high transmit output power enabling a very robust wireless communication.

　　ATmega128RFA1主要特性:

　　• High Performance, Low Power AVR® 8-Bit Microcontroller

　　• Advanced RISC Architecture

　　- 135 Powerful Instructions – Most Single Clock Cycle Execution

　　- 32x8 General Purpose Working Registers

　　- Fully Static Operation

　　- Up to 16 MIPS Throughput at 16 MHz and 1.8V

　　- On-Chip 2-cycle Multiplier

　　• Non-volatile Program and Data Memories

　　- 128K Bytes of In-System Self-Programmable Flash

　　• Endurance: 1000 Write/Erase Cycles @ 125°C (2000 Cycles @ 85°C)

　　- 4K Bytes EEPROM

　　• Endurance: 1000 Write/Erase Cycles @ 125°C (2000 Cycles @ 85°C)

　　- 16K Bytes Internal SRAM

　　• JTAG (IEEE std. 1149.1 compliant) Interface

　　- Boundary-scan Capabilities According to the JTAG Standard

　　- Extensive On-chip Debug Support

　　- Programming of Flash EEPROM, Fuses and Lock Bits through the JTAG interface

　　• Peripheral Features

　　- Multiple Timer/Counter & PWM channels

　　- Real Time Counter with Separate Oscillator

　　- 10-bit, 330 ks/s A/D Converter; Analog Comparator; On-chip Temperature Sensor

　　- Master/Slave SPI Serial Interface

　　- Two Programmable Serial USART

　　- Byte Oriented 2-wire Serial Interface

　　• Advanced Interrupt Handler

　　• Watchdog Timer with Separate On-Chip Oscillator

　　• Power-on Reset and Low Current Brown-Out Detector

　　• Advanced Power Save Modes

　　• Fully integrated Low Power Transceiver for 2.4 GHz ISM Band

　　- Supported Data Rates: 250 kb/s and 500 kb/s, 1 Mb/s, 2 Mb/s

　　- -100 dBm RX Sensitivity; TX Output Power up to 3.5 dBm

　　- Hardware Assisted MAC (Auto-Acknowledge, Auto-Retry)

　　- 32 Bit IEEE 802.15.4 Symbol Counter

　　- Baseband Signal Processing

　　- SFR-Detection, Spreading; De-Spreading; Framing ; CRC-16 Computation

　　- Antenna Diversity and TX/RX control

　　- TX/RX 128 Byte Frame Buffer

　　• Hardware Security (AES, True Random Generator)

　　• Integrated Crystal Oscillators (32.768 kHz & 16 MHz, external crystal needed)

　　• I/O and Package

　　- 38 Programmable I/O Lines

　　- 64-pad QFN (RoHS/Fully Green)

　　• Temperature Range: -40°C to 125°C Industrial

　　• Supply voltage range 1.8V to 3.6V with integrated voltage regulators

　　• Ultra Low Power consumption (1.8 to 3.6V) for Rx/Tx & AVR: <18.6 mA

　　- CPU Active Mode (16MHz): 4.1 mA

　　- 2.4GHz Transceiver: RX_ON 12.5 mA / TX 14.5 mA (maximum TX output power)

　　- Deep Sleep Mode: <250nA @ 25℃

　　• Speed Grade: 0 – 16 MHz @ 1.8 – 3.6V

　　ATmega128RFA1应用:

　　• ZigBee® / IEEE 802.15.4-2006/2003™ – Full And Reduced Function Device (FFD/RFD)

　　• General Purpose 2.4GHz ISM Band Transceiver with Microcontroller

　　• RF4CE, SP100, WirelessHART™, ISM Applications and IPv6 / 6LoWPAN

　　图1.ATmega128RFA1方框图

　　图2.ATmega128RFA1基本应用电路

　　基本应用电路材料清单:

　　图3.ATmega128RFA1扩展应用电路

　　RCB键控评估板

　　This application note provides a detailed hardware description for the individual function blocks of the RCB Key Remote Control (KeyRemote) board. The KeyRemote is used in conjunction with an Atmel® RCB in order to evaluate remote control applications.

　　RCB键控评估板主要特性:

　　• Connector interface to adapt various radio controller boards (RCB)

　　• RCB battery powered, hand-held evaluation, and development platform

　　• 25 keys

　　• 5 LEDs

　　• 128 x 32 graphic display

　　• Analog, three-axis acceleration sensor

　　• 980nm IR transmitter

　　• RS232 and JTAG interfaces

　　图4.RCB评估板方框图

　　图5.RCB键控评估板外形图

　　RCB键控评估板材料清单: