Nordic Semiconductor has developed the Wireless Desktop Protocol, a complete RF protocol stack for advanced RF control devices that eliminates the need for engineers to write such a protocol themselves.
The Wireless Desktop Protocol is a complete communication software solution for Nordic's 2,4 GHz transceivers with Enhanced ShockBurst link layer, and includes all upper protocol layers for implementing wireless connectivity for advanced control devices.
The protocol provides reliable, high performance data communication with excellent 2,4 GHz co-existence performance using an advanced asynchronous frequency agility transmission scheme, offering nominal packet latencies as low as 1,5 ms. In addition, a unique ReverseBurst feature allows simple high-throughput data streaming from the host (the appliance being controlled) to the device (the controller), making it a suitable solution for the bidirectional communications demanded by advanced Media Centre remote controls with displays. These features mean that the protocol meets or exceeds the requirements for wireless PC peripherals.
The protocol stack also provides native support for star topology networking of up to five control devices with bidirectional data connections to one host, enabling implementation of 3-in-1 desktop bundles.
As battery lifetime is a key design criterion for wireless PC peripherals, the protocol stack is optimised for ultra-low power consumption on the device (controller) side by minimising the time on air.
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