NXPJN5148JenNet-IP Low Power Wireless IP Network Solution

NXP’s JN5148 is an ultra-low-power high-performance wireless microcontroller with enhanced 32-bit RISC processor, operating frequency 4-32MHz, 2.4GHz IEEE802.15.4 compliant transceiver, 128kB ROM, 128kB RAM and analog and digital Interface. Transceiver has 128-bit AES security processor, receiver sensitivity -95dBm, transmit power 2.5dBm, 500 and 667kbps data rate modes, MAC accelerator with packet formatting, SRC, address checking, timer, 2.0 on-chip V to 3.6V power regulator, mainly used in low power wireless applications, ZigBee” title=”ZigBee”>ZigBee PRO and JenNet” title=”JenNet”>JenNet Network, Smart Meter Reading (AMR), Home and Building This article introduces the main features of JN5148, block diagram, radio, modem and baseband processor architecture, printed antenna reference module circuit diagram as well as component values ​​and PCB layout constraints Value, main features and advantages of JenNet-IP low-power wireless IP network solution for IoT, application block diagram of CFL lighting control via Internet intelligent control.

JN5148 Single Chip JenNet, ZigBee PRO and IEEE802.15.4 Solution

The JN5148-001 is an ultra low power, high performance wireless microcontroller targeted at JenNet and ZigBee PRO networking applications. The device features an enhanced 32-bit RISC processor offering high coding efficiency through variable width instructions, a multistage instruction pipeline and low power operation with programmable clock speeds. It also includes a 2.4GHz IEEE802.15.4 compliant transceiver, 128kB of ROM, 128kB of RAM, and a rich mix of analogue and digital peripherals. The large memory footprint allows the device to run both a network stack (eg ZigBee PRO) and an embedded application or in a coprocessor mode. The operating current is below 18mA, allowing operation direct from a coin cell.

Enhanced peripherals include low power pulse counters running in sleep mode designed for pulse counting in AMR applications and a unique Time of Flight ranging engine, allowing accurate location services to be implemented on wireless sensor networks. It also includes a 4-wire I2S audio interface, to interface directly to mainstream audio CODECs, as well as conventional MCU peripherals.

Main features of JN5148:

Transceiver Features:

• 2.4GHz IEEE802.15.4 compliant
• Time of Flight ranging engine
• 128-bit AES security processor
• MAC accelerator with packet formatting, CRCs, address check, auto-acks, timers
• 500 & 667kbps data rate modes
• Integrated sleep oscillator for low power
• On chip power regulation for 2.0V to 3.6V battery operation
• Deep sleep current 100nA
• Sleep current with active sleep timer 1.25μA
• <$0.50 external component cost
• Rx current 17.5mA
• Tx current 15.0mA
• Receiver sensitivity -95dBm
• Transmit power 2.5dBm

Microcontroller Features:

• Low power 32-bit RISC CPU, 4 to 32MHz clock speed
• Variable instruction width for high coding efficiency
• Multi-stage instruction pipeline
• 128kB ROM and 128kB RAM for bootloaded program code & data
• JTAG debug interface
• 4-input 12-bit ADC, 2 12-bit DACs, 2 comparators
• 3 application timers/counters,
• 2 UARTs
• SPI port with 5 selects
• 2-wire serial interface
• 4-wire digital audio interface
• Watchdog timer
• Low power pulse counters
• Up to 21 DIO

JN5148 advantages:

• Single chip integrates transceiver and microcontroller for wireless sensor networks
• Large memory footprint to run ZigBee PRO or JenNet together with an application
• Very low current solution for long battery life
• Highly featured 32-bit RISC CPU for high performance and low power
• System BOM is low in component count and cost
• Extensive user peripherals

JN5148 application:

• Robust and secure low power wireless applications
• ZigBee PRO and JenNet networks
• Smart metering (eg AMR)
• Home and commercial building automation
• Location Aware services – eg Asset Tracking
• Industrial systems
• Telemetry
• Remote Control
• Toys and gaming peripherals

Figure 1. JN5148 block diagram

Figure 2. JN5148 radio part architecture

Figure 3. JN5148 modem sub-architecture

Figure 4. JN5148 baseband processor architecture diagram

Figure 5. JN5148 Printed Antenna Reference Module Circuit Diagram
JN5148 Printed Antenna Reference Module Component Values ​​and PCB Layout Constraints:

JenNet-IP Low Power Wireless IP Network Solution for IoT

JenNet-IP is an IP-based networking solution enabling the “Internet of Things”. Using an enhanced 6LoWPAN network layer as defined by the IETF, it targets ultra low power IEEE802.15.4 based wireless networking for residential and industrial applications. With a “ mesh-under networking” approach, it places NXP’s industry proven JenNet network layer at the heart of the platform, to provide a self-healing, highly robust and scalable network backbone, to serve wireless networks with an excess of 500 nodes.

Supported on the JN5148 wireless microcontroller, the solution offers an ultra low power platform for product development. An elegant and extensible user API, SNAP provides a MIB-based approach to device management and control, enabling applications developers to easily and expediently carry out product development using industry familiar methodologies.

Lighting network intelligently controlled via internet

The following diagram shows a Smartphone controlling a lighting network via the
internet. The Smartphone application sends SNAP commands to lights via IP through
the internet cloud, the home gateway into a wireless IP network. The lights run an
application on a wireless microcontroller to interpret the SNAP commands and
control the light.

Figure 6. Block diagram of lighting network intelligently controlled via internet

Main features of JenNet-IP low power wireless IP network:

 Self-healing and re-shaping tree network
o Proven at network sizes over 500 nodes
o Highly robust
o Easily scalable
 IP-based networking enabling the “Internet of Things”
 Gateway or non-gateway options, supporting
o Connection to the Internet, or
o Standalone operation
 Low power option for low standby applications
 SNAP API
o Easy-to-use
o Elegant
o Extensible
 “Mesh-under” approach allows
o Routing layer optimisation to low power wireless link
o Minimises number of packet buffers
 Highly secure
o 128-bit AES encryption, with
o Secure authentication and device joining
 Over-Network Download, future proofs:
o Device applications
o Network upgrades
 Low memory footprint, less than 128 kbytes
 Low cost of ownership
o Small memory footprint
o Low development complexity
o License-free
o Compliance-free

JenNet-IP Low Power Wireless IP Network Advantages:

 IP is the foundation of the Internet and globally accepted
 Open standards approach by the IEEE, IEFT communities
 Low Power, low cost, large node networking
 Seamless integration of smart wireless devices with existing IP
 2.4GHz global solution and coexists with Wi-Fi, Bluetooth.
 Industry familiar APIs and interfaces

JenNet-IP Low Power Wireless IP Network Applications:

Residential/Smart Home

 A/V RF Remote Control
 Smart Lighting
 Healthcare in the Home
 Security, fire, access control
 Smart Energy

Industrial

 Asset Management
 Commercial/Industrial Lighting
 Building Control
 Environment Monitoring
 Smart Energy

Application case: CFL lighting

The Electronic components of a light bulb comprise a lamp driver, power supply and a JN5148 wireless microcontroller. The antenna is printed on the PCB and connects directly to the JN5148. The wireless microcontroller has a low power consumption of 15mA in radio transmit and 17.5mA in radio receive, and a few nA in sleep with multi-year battery life.

The bulb application, controlling the bulb and also monitoring its power consumption communicates to remotes or the internet via SNAP and the JenNet-IP 6LoWPAN wireless networking.

Figure 7. CFL Illuminator Application Block Diagram
For details, see:
http://www.jennic.com/files/product_briefs/JN-DS-JN5148-1v6.pdf
and
http://www.jennic.com/files/product_briefs/JenNet-IP-PBv1.11docx.pdf