Jennic has announced what it claims is the industry’s first networking stack to enable a single-chip implementation for nextgeneration low-power wireless IP in embedded devices. By extending the widely understood IP protocol into the low power wireless domain, applications may leverage existing IP infrastructure and knowledge base, reducing development costs and time to market.
Based on the familiar IEEE802.15.4 standard as used by ZigBee, Jennic’s 6LoWPAN networking stack runs on the JN5139 wireless microcontroller, which integrates a 2,4 GHz IEEE802.15.4 transceiver and a 32-bit processor core, with sufficient memory remaining to run application software.
The 6LoWPAN stack supports simple star networks, or can be run on top of the stable and field-proven JenNet stack that provides self-healing cluster tree networking capability, with automatic route formation and repair. The power consumption of 6LoWPAN is said to be a fraction of Wi-Fi, meaning that products such as heating controls, security sensors, patient monitoring equipment, process controllers and sensors, can be IP-enabled with multiyear battery life expectancy.
The JN5139 features memory resources of 192 KBytes of ROM and 96 KBytes of RAM for the IEEE802.15.4 MAC; 6LoWPAN and JenNet stacks; and application software. It also integrates UARTs, SPI and 2-wire serial (I²C) interfaces, general purpose I/O (GPIO), timers, a 12-bit ADC, DAC and comparators, whilst maintaining power consumption below 5 μA in sleep mode. The integrated transceiver supports a 100dB link for communication over 30 to 50 metre distances indoors as well as secure 128-bit AES encryption.
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