關鍵詞:無線通信,無線寬帶,ZigBee,
摘要:Freescale 的MC1321x 系列是第二代ZigBee 平臺,在9x9x1mm 71 引腳LGA 封裝中
集成了低功耗" title="低功耗">低功耗的2.4GHz RF 收發器" title="收發器">收發器和8 位微控制器" title="微控制器">微控制器.MC13213 器件具有60KB 的閃
存.MC1321x 解決方案能在簡單的點對點連接到完整的ZigBee 網狀網絡中用作無線連接.
小占位面積封裝中的無線電收發器和微控制器的組合使它成為成本效益的解決方
案.MC1321x 中的RF 收發器工作在2.4GHz ISM 頻段,和802.15.4 標準兼容.收發器包括低
噪音放大器,1mW 輸出功率,帶VCO 的功率放大器(PA),集成的發送/接收開關,板內的電源穩
壓器以及完全的擴展頻譜的編碼和譯碼. MC1321x 中的微控制器是基于HCS08 系列微控制
器單元(MCU),HCS08 A 版本,高達60KB 的閃存和4KB 的RAM.
Freescale 的MC1321x 系列是第二代ZigBee 平臺,在9x9x1mm 71 引腳LGA 封裝中集成
了低功耗的2.4GHz RF 收發器和8 位微控制器.MC13213 器件具有60KB 的閃存.MC1321x
解決方案能在簡單的點對點連接到完整的ZigBee 網狀網絡中用作無線連接.小占位面積封
裝中的無線電收發器和微控制器的組合使它成為成本效益的解決方案.MC1321x 中的RF 收
發器工作在2.4GHz ISM 頻段,和802.15.4 標準兼容.收發器包括低噪音放大器" title="低噪音放大器">低噪音放大器,1mW輸出功
率,帶VCO的功率放大器(PA),集成的發送/接收開關,板內的電源穩壓器" title="電源穩壓器">電源穩壓器以及完全的擴展頻譜
的編碼和譯碼. MC1321x 中的微控制器是基于HCS08 系列微控制器單元(MCU),HCS08 A
版本,高達60KB 的閃存和4KB 的RAM.本文介紹了MC13213 的主要性能,以及MC1321x
與其中的MCU,RF Modem 的方框圖.此外,還提供了兩種評估板的電路圖.
Freescale MC13213: 2.4GHz RF transceiver and 8-bit MCU with 60K of Flash for ZigBee
applications
The MC1321x family is Freescale’s second-generation ZigBee platform which
incorporates a low power 2.4GHz 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.
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Figure 1. MC1321x 系統級方框圖
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 where larger memory is required.
In addition, this device can support ZigBee 2006 applications that use Freescale’s
BeeStack.
應用范圍:
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
通用平臺特性:
.?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°C to +85°C temperature range
.?Low external component count
.?Supports single 16 MHz crystal clock source operation or dual crystal operation
.?Support for SMAC, 802.15.4 Standard, and ZigBee software
.?9mm x 9mm x 1mm 71-pin LGA
微控制器特性:
.?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 4-channel and one 1-channel 16-bit timer/pulse width modulator (TPM) module
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
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RF調制解調器特性:
.?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
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MC13213 802.15.4標準調制解調器方框圖
軟件特性:
Freescale provides a wide range of software functionality to complement the MC1321x
hardware. There are three levels of application solutions:
Simple MAC
Small memory footprint (< 4 KB)
Supports point-to-point and star network configurations
ANSI C source code
? IEEE 802.15.4 compliant MAC
Supports star, mesh and cluster tree topologies
Supports beaconed and non-beaconed networks
Supports guaranteed time slots (GTS) for predicable latency
128-bit Asymmetric Encryption Standard (AES)
Object Code
? BeeStack ZigBee Protocol Stack
ZigBee 2006 Complian Platform
Object Code
下面是13213-NCB 網絡協調板的外形圖和電路圖:
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13213-NCB 電路圖(2 of 2)
下面是13213-SRB 傳感器參考板外形圖和電路圖:
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13213-SRB 電路圖