原标题：Freescale MC1321x系列2.4GHz ZigBee开发方案

　　freescale 公司的MC1321x系列是第二代ZigBee平台,集成了低功耗2.4GHz RF收发器和8位MCU,能实现点对电连接到完整的ZigBee mesh网络,是高性价比的完整解决方案.RF收发器和标准802.15.4兼容,工作在2.4 GHz ISM频带,包括有低噪音放大器,1mW输出功率,带VCO的PA,发送/接收开关,电源稳压以及全扩展频谱编码和译码.MCU具有HCS08 Version A特性,并提供多达60KB的闪存和4KB的RAM.本文介绍了MC1321x系列主要特性,方框图, 802.15.4标准调制解调器方框图和MCU(HCS08, Version A)方框图,以及13213-网络协调板(NCB)和13213-传感器参考板(SRB)电路图.

　　The MC1321x family is Freescale’s second-generation ZigBee platform which incorporates a low power 2.4 GHz radio frequency transceiver and an 8-bit microcontroller into a single 9x9x1 mm 71-pin LGA package. The MC1321x solution can be used for wireless applications from simple proprietary point-to-point connectivity to a complete ZigBee mesh network. The combination of the radio and a microcontroller in a small footprint package allows for a cost-effective solution.

　　The MC1321x contains an RF transceiver which is an 802.15.4 Standard compliant radio that operates in the 2.4 GHz ISM frequency band. The transceiver includes a low noise amplifier, 1mW nominal output power, PA with internal voltage controlled oscillator (VCO), integrated transmit/receive switch, on-board power supply regulation, and full spread-spectrum encoding and decoding.

　　The MC1321x also contains a microcontroller based on the HCS08 Family of Microcontroller Units (MCU), specifically the HCS08 Version A, and can provide up to 60KB of flash memory and 4KB of RAM. The onboard MCU allows the communications stack and also the application to reside on the same system-in-package (SIP). The MC1321x family is organized as follows:

　　• The MC13211 has 16KB of flash and 1KB of RAM and is an ideal solution for low cost,proprietary applications that require wireless point-to-point or star network connectivity. The MC13211 combined with the Freescale Simple MAC (SMAC) provides the foundation for proprietary applications by supplying the necessary source code and application examples to get users started on implementing wireless connectivity.

　　• The MC13212 contains 32K of flash and 2KB of RAM and is intended for use with the Freescale fully compliant 802.15.4 MAC. Custom networks based on the 802.15.4 Standard MAC can be implemented to fit user needs. The 802.15.4 Standard supports star, mesh and cluster tree topologies as well as beaconed networks.

　　• The MC13213 contains 60K of flash and 4KB of RAM and is also intended for use with the Freescale fully compliant 802.15.4 MAC and the fully ZigBee compliant Freescale BeeStack.

　　MC1321x系列主要特性:

　　General Platform Features

　　• 802.15.4 Standard compliant on-chip transceiver/modem

　　— 2.4GHz

　　— 16 selectable channels

　　— Programmable output power

　　• Multiple power saving modes

　　• 2V to 3.4V operating voltage with on-chip voltage regulators

　　• -40℃ to +85℃ temperature range

　　• Low external component count

　　• Supports single 16 MHz crystal clock source operation or dual crystal operation

　　• Support for SMAC, IEEE 802.15.4 Standard-Compliant MAC, SynkroRF, BeeStack, BeeStack Consumer (ZigBee RF4CE) software solutions

　　• 9mm x 9mm x 1mm 71-pin LGA

　　Microcontroller Features

　　• Low voltage MCU with 40 MHz low power HCS08 CPU core

　　• Up to 60K flash memory with block protection and security and 4K RAM

　　— MC13211: 16KB Flash, 1KB RAM

　　— MC13212: 32KB Flash, 2KB RAM

　　— MC13213: 60KB Flash, 4KB RAM

　　• Low power modes (Wait plus Stop2 and Stop3 modes)

　　• Dedicated serial peripheral interface (SPI) connected internally to 802.15.4 modem

　　• One external 4-channel (5-channel internal) 16-bit timer/pulse width modulator (TPM) module and one external 1-channel (3-channel internal) 16-bit timer/pulse width modulator module, each with selectable input capture, output capture, and PWM capability.

　　• 8-bit port keyboard interrupt (KBI)

　　• 8-channel 8-10-bit ADC

　　• Two independent serial communication interfaces (SCI)

　　• Multiple clock source options

　　— Internal clock generator (ICG) with 243 kHz oscillator that has +/-0.2% trimming resolution and +/-0.5% deviation across voltage.

　　— Startup oscillator of approximately 8 MHz

　　— External crystal or resonator

　　— External source from modem clock for very high accuracy source or system low-cost option

　　• Inter-integrated circuit (IIC) interface.

　　• In-circuit debug and flash programming available via on-chip background debug module (BDM)

　　— Two comparator and 9 trigger modes

　　— Eight deep FIFO for storing change-of-flow addresses and event-only data

　　— Tag and force breakpoints

　　— In-circuit debugging with single breakpoint

　　• System protection features

　　— Programmable low voltage interrupt (LVI)

　　— Optional watchdog timer (COP)

　　— Illegal opcode detection

　　• Up to 32 MCU GPIO with programmable pullups

　　RF Modem Features

　　• Fully compliant 802.15.4 Standard transceiver supports 250 kbps O-QPSK data in 5.0 MHz channels and full spread-spectrum encode and decode

　　• Operates on one of 16 selectable channels in the 2.4 GHz ISM band

　　• -1 dBm to 0 dBm nominal output power, programmable from -27 dBm to +3 dBm typical

　　• Receive sensitivity of <-92 dBm (typical) at 1% PER, 20-byte packet, much better than the 802.15.4 Standard of -85 dBm

　　• Integrated transmit/receive switch

　　• Dual PA ouput pairs which can be programmed for full differential single-port or dual-port operation that supports an external LNA and/or PA.

　　• Three low power modes for increased battery life

　　• Programmable frequency clock output for use by MCU

　　• Onboard trim capability for 16 MHz crystal reference oscillator eliminates need for external variable capacitors and allows for automated production frequency calibration

　　• Four internal timer comparators available to supplement MCU timer resources

　　• Supports both packet data mode and streaming data mode

　　• Seven GPIO to supplement MCU GPIO

　　Software Features

　　Freescale provides a wide range of software functionality to complement the MC1321x hardware. There are three levels of application solutions:

　　• SMAC

　　• IEEE 802.15.4 Standard-Compliant MAC

　　• SynkroRF

　　• BeeStack

　　• BeeStack Consumer (ZigBee RF4CE)

　　MC1321x系列应用:

　　Applications include, but are not limited to, the following:

　　• Residential and commercial automation

　　— Lighting control

　　— Security

　　— Access control

　　— Heating, ventilation, air-conditioning (HVAC)

　　— Automated meter reading (AMR)

　　• Industrial Control

　　— Asset tracking and monitoring

　　— Homeland security

　　— Process management

　　— Environmental monitoring and control

　　— HVAC

　　— Automated meter reading

　　• Health Care

　　— Patient monitoring

　　— Fitness monitoring

　　• Consumer

　　— Human interface devices (keyboard, mice, etc.)

　　— Remote control

　　— Wireless toys

　　图.MC1321x系列系统级方框图

　　图. 802.15.4标准调制解调器方框图

　　图. MC1321x MCU方框图 (HCS08, Version A)

　　MC1321x 评估套件 (EVK)

　　This manual provides a detailed hardware description of the MC1321xEVK which consists of a 13213-Network Coordinator Board (13213-NCB) and a 13213-Sensor Reference Board (13213-SRB).

　　The functionality of the 13213-NCB and 13213-SRB boards is very similar. The primary difference between the two boards revolves around the peripheral circuits, not in the reference design itself.

　　The 13213-NCB and 13213-SRB provide all the necessary components to evaluate and use the MC1321x solution. The 13213-NCB and the 13213-SRB are built around the Freescale MC1321x family. The MC1321x family is Freescale’s second-generation ZigBee platform which incorporates a low power 2.4 GHz radio frequency transceiver and an 8-bit microcontroller into a single 9x9x1 mm 71-pin LGA package.

　　The 13213-NCB and the 13213-SRB are compliant with the following standards:

　　• FCC standard 47 CFR, part 15, section 15.247

　　• ETSI EN 300-328-1

　　• ETSI EN 300-328-2

　　图6.13213-网络协调板(NCB)外形图

　　图7.13213-传感器参考板(SRB)外形图