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Protocol Stacks


 

Building the Foundation


The IEEE® 802.15.4 Standard, introduced in 2003 is designed to address the need for a low cost and low power wireless solution and has become the foundation for monitoring and control solutions, including ZigBee® technology, SynkroRF technology, the WirelessHART™ specification as well as numerous other proprietary network stacks.

802.15.4

IEEE® 802.15.4
The 802.15.4 Standard is the benchmark for low power wireless solutions and is the basis for both proprietary and standard based protocol stacks. Freescale's IEEE 802.15.4 compliant stack provides the ideal starting point for low power wireless solutions.  More >



SMAC

SMAC
Freescale's Simple MAC (SMAC) is a simple and cost-effective starting point for wireless networking. Based on the 802.15.4 PHY software layer, SMAC supports point-to-point as well as star networks. The small code size allows for the use of low cost 8-bit MCUs, creating the ideal platform for simple, but effective wireless solutions.  More >


SynkroRF

SynkroRF
SynkroRF is Freescale's networking protocol stack that builds on the robustness of the 802.15.4 Standard and adds key network features such as low latency and channel agility. This makes SynkroRF ideal for robust, low cost wireless networks that do not need the complexity of larger mesh networks.  More >



ZigBee RF4CE

ZigBee® RF4CE
Now that the Radio Frequency for Consumer Electronics (RF4CE) Consortium has merged with the ZigBeeŽ Alliance, Freescale's RF4CE protocol stack (BeeStack™ Consumer) is the answer to RF remote control solutions, bringing remote control into the 21st century. BeeStack Consumer allows for two-way device-to-device communication and provides increased functionality, making the remote control intelligent, but simple.  More >



ZigBee

ZigBee®
ZigBee® technology is focused on applications such as building control and automation, including devices such as lighting, heating/ventilation/air-conditioning (HVAC) and appliances in both commercial and residential buildings. ZigBee allows for more complex networking requirements including mesh networks as well as complex security requirements.More >



Freescale Protocol Stack Comparison


Feature SMAC 802.15.4 MAC SynkroRF RF4CE ZigBee
Typical
Applications
Cable
Replacement
Wireless Control Cable
Replacement
RF Remote
Control
Home
Automation
Wireless Toys
and Games
Wireless
Automation
Wireless
Control
Home
Entertainment
and Control
Smart Energy
Wireless
Meter Reading
Home
Automation
Building
Automation
Patient
Monitoring
Security
Standard
Body
None
Proprietary
IEEE None
Proprietary
RF4CE ZigBee
Network
Stack
No No Yes Yes Yes
Network Profiles No No No Yes Yes
Memory
Requirements
4-8K 30-40K 32K 40K 50-100K
Network
Topology
Point-to-Point Peer-to-Peer Co-existing
Star
Multiple
Star
Tree
Star Tree Mesh
Mesh
Typical #
of Nodes
2-100 2-1000* 32 per Controlled
Device
32 per Target
Device
2-250
ZigBee
2-1000
ZigBee Pro
Typical IC
Cost
$1-2 $2-3 $2-3 $2-3 $3-5
Typical Data
Throughput
50-115K 90-115K 70-100K 70-100K 30-70K
*Theoretical addressing will support 65K nodes

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