7
Wireless Connectivity Guide Texas Instruments 4Q 2014
Ô
ZigBee
®
/IEEE 802.15.4
ZigBee Overview
ZigBee/IEEE 802.15.4
ZigBee is a standards-based
technology for remote monitoring,
control and sensor network
applications. The ZigBee standard was
created to address the need for a cost-
effective, standards-based wireless
networking solution that supports low
data-rates, low-power consumption,
security, and reliability.
ZigBee supports self-healing mesh
networking which is a decentralized
network topology very similar to the
Internet. It allows nodes to find new
routes throughout the network if one
route fails, making ZigBee a robust
wireless solution.
Application areas
A technology specifically targeted
for wireless sensor networks,
ZigBee 802.15.4 can be used in any
monitoring and control application that
requires a wireless link. The primary
target markets are:
• Home,buildingandindustrial
automation
• Smartwirelesslightingcontroland
LED bulbs
• Homecontrol/security
• Medical/patientmonitoring
• Logisticsandassettracking
• SensornetworksandactiveRFID
• Advancedmetering/smartenergy
• Commercialbuildingautomation
• Energyharvesting
Why TI ZigBee?
Texas Instruments is a founding
member of the ZigBee Board of
Directors. Unlike other hardware
suppliers that outsource their ZigBee
stack development, our software
engineering team delivers golden
unit certified platforms which are
the benchmark for other developer
companies to test against. TI is the
lead technical editor for the next
generation IP based protocol stack.
TI’s ZigBee solutions include:
• Cortex
®
-M3 based System-on-Chip
(SoC) is targeted for dual stack
SE and HA applications offering
hardware security acceleration for fast
commissioning.
• TIprovidescompleteandfree
software solution on various
platforms (8051 and Cortex-M3
SoCs, ultra-low power MSP430™)
• TIprovidesextensivedevelopment
tools, application support, reference
designs
• TIistheZigBeemarketleaderand
#1 in 802.15.4 and shipped the
first 802.15.4 chip on the market
(CC2420 )
• TIbringsZigBeetechnologyto
smartphones as mobile smart
energy display
• TIhadthefirstIEEE802.15.4radio
and has a continued solid roadmap
with focus on ZigBee
Three paths to ZigBee
TI offers three ZigBee-compliant
platforms, built on the CC2538
system-on-chip (SoC), CC2530 SoC
andtheCC2520+MSP430™two-chip
solution.
• TheCC2538ARM
®
Cortex-M3
SoC is the industry’s first 512-kB
Flash device with enough on-chip
memory to support onboard over-
the-air download.
• TheZigBeesecond-generation
CC2530 system-on-chip (SoC) is a
ZigBee golden unit that is targeted
for low-power applications and
small-form-factor designs.
• ByrunningtheCC2530asaZigBee
Network Processor, it will run the
ZigBee stack and handle all the
network processing, offloading a
separate host processor that runs
the main application. The host
processor communicates with the
CC2530 over a serial interface.
This partitioning option allows
the designer to keep the ZigBee
application profile and any other
applications on the main processor.
• Thesecond-generationCC2520
IEEE 802.15.4 transceiver can be
used with the MSP430 MCU and
Tiva™ suite of ARM Cortex-M3
technology. It is recommended for
designers who want additional Flash
and RAM.
SoC
small footprint, high
integration, low cost
Co-processor
flexible, easy to use and
reduced time to market
Dual-chip
ultra-low power or
high performance
Complete ZigBee Solutions
Application CC2530 CC2538or Any MCU (™,™)MSP430 Tiva
Any MPU (™)Sitara
MSP430
Protocol
stack
CC253x-based coprocessors
with UART/SPI/USB interface:
Three paths to ZigBee
• Stack and application profile
•Protocol stack
• MAC only
Radio
RF front end
(optional)
CC2590/CC2591 CC2590/CC2591 CC2590/CC2591
CC2520
TI’s three paths to ZigBee.
www.ti.com/zigbee