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ATmega256RFR2 ZigBit Xplained Pro擴(kuò)展性能開發(fā)方案

文章來源：更新時間：2014/10/29 9:47:00

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Atmel公司的ATmega256/128/64RFR2是集成了2.4GHz ISM頻段收發(fā)器的低功耗CMOS RISC架構(gòu)的8位AVR MCU,16MHz時的吞吐量高達(dá)16MIPS.其收發(fā)器具有250kbps到2Mkbps的數(shù)據(jù)速率,幀處理,接收靈敏度-100dBm,發(fā)送輸出功率高達(dá)3.5dBm,主要用于具有ZigBee® / IEEE 802.15.4-2011/2006/2003™功能設(shè)備,通用2.4GHz ISM收發(fā)器,以及RF4CE, SP100, WirelessHART™, ISM應(yīng)用和IPv6 / 6LoWPAN互聯(lián)網(wǎng).本文介紹了ATmega256/128/64RFR2主要特性和框圖, ATmega256RFR2 ZigBit擴(kuò)展板主要特性,電路圖,材料清單和PCB設(shè)計(jì)圖.
The ATmega256/128/64RFR2 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.
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.

ATmega256/128/64RFR2主要特性:
• Network support by hardware assisted Multiple PAN Address Filtering
• Advanced Hardware assisted Reduced Power Consumption
• High Performance, Low Power AVR® 8-Bit Microcontroller
• Advanced RISC Architecture
- 135 Powerful Instructions – Most Single Clock Cycle Execution
- 32x8 General Purpose Working Registers / On-Chip 2-cycle Multiplier
- Up to 16 MIPS Throughput at 16 MHz and 1.8V – Fully Static Operation
• Non-volatile Program and Data Memories
- 256K/128K/64K Bytes of In-System Self-Programmable Flash
• Endurance: 10’000 Write/Erase Cycles @ 125℃(25’000 Cycles @ 85℃
- 8K/4K/2K Bytes EEPROM
• Endurance: 20’000 Write/Erase Cycles @ 125℃(100’000 Cycles @ 25℃
- 32K/16K/8K 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 and Power Save Modes
• Watchdog Timer with Separate On-Chip Oscillator
• Power-on Reset and Low Current Brown-Out Detector
• Fully integrated Low Power Transceiver for 2.4 GHz ISM Band
- High Power Amplifier support by TX spectrum side lobe suppression
- 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
- SFD-Detection, Spreading; De-Spreading; Framing ; CRC-16 Computation
- Antenna Diversity and TX/RX control / TX/RX 128 Byte Frame Buffer
- Phase measurement support
• PLL synthesizer with 5 MHz and 500 kHz channel spacing for 2.4 GHz ISM Band
• 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℃Industrial
• Ultra Low Power consumption (1.8 to 3.6V) for AVR & Rx/Tx: 10.1mA/18.6 mA
- CPU Active Mode (16MHz): 4.1 mA
- 2.4GHz Transceiver: RX_ON 6.0 mA / TX 14.5 mA (maximum TX output power)
- Deep Sleep Mode: <700nA @ 25℃
Speed Grade: 0 – 16 MHz @ 1.8 – 3.6V range with integrated voltage regulators
ATmega256/128/64RFR2應(yīng)用:
• ZigBee® / IEEE 802.15.4-2011/2006/2003™ – Full and Reduced Function Device
• General Purpose 2.4GHz ISM Band Transceiver with Microcontroller
• RF4CE, SP100, WirelessHART™, ISM Applications and IPv6 / 6LoWPAN

圖1. ATmega256/128/64RFR2框圖

ATmega256RFR2 ZigBit擴(kuò)展板
This user guide describes how to get started with the Atmel® ZigBit® extension boards.
The ZigBit extension boards is targeted for evaluating the features of the Atmel ZigBits, currently supporting ATmega256RFR2 wireless SoC, the AT86RF212B and AT86RF233 radio transceivers.
The ZigBit extension board is targeted for evaluating the features of the Atmel ZigBits, currently supporting ATmega256RFR2 wireless SoC, the AT86RF212B and AT86RF233 radio transceivers.

ATmega256RFR2 ZigBit擴(kuò)展板包括:
ATmega256RFR2
Chip antenna
RF test connector