Jennic 公的JN5148是超低功耗高性能無線控制器,目標應用于 ZigBee PRO網絡.器件采用增強的32位RISC處理器, 集成了2.4GHz IEEE802.15.4兼容的收發器,128KB ROM, 128KB RAM,以及各種豐富的模擬和數字接口. JN5148具有28位AES安全處理器,MAC加速器,500和667kbps數據速率,工作電壓2.0V到3.6V,主要應用在ZigBee PRO網絡,智能讀表如AMR,家庭和建筑物自動化,工業系數,遠程信息處理,遙控,游戲外設等.本文介紹了JN5148主要特性,方框圖, 單端無線電架構圖, 基帶處理器框圖, 安全處理器架構, SPI外設連接圖, 定時器單元和UART方框圖, 模擬外設方框圖和PCB天線參考模塊電路圖以及元件列表.

The JN5148-001 is an ultra low power, high performance wireless microcontroller targeted at ZigBee PRO networking applications. The device features an enhanced 32-bit RISC processor offering high coding efficiency through variable width instructions, a multi-stage 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, e.g. ZigBee PRO, and an embedded application or in a co-processor 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.

JN5148主要特性:收發器

• 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

MCU特性:

• 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 timer/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

主要優勢:

• Single chip integrates transceiver and microcontroller for wireless sensor networks

• Large memory footprint to run ZigBee PRO 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主要應用:

• Robust and secure low power wireless applications

• ZigBee PRO networks

• Smart metering (e.g. AMR)

• Home and commercial building automation

• Location Aware services – e.g. Asset Tracking

• Industrial systems

• Telemetry

• Remote Control

• Toys and gaming peripherals

圖1.JN5148 方框圖

圖2.JN5148單端無線電架構圖

圖3.JN5148基帶處理器框圖

圖4.JN5148安全處理器架構

圖5.JN5148 SPI方框圖

圖6.JN5148典型SPI外設連接圖

圖7.JN5148定時器單元方框圖

圖8.JN5148 UART方框圖

圖9.JN5148模擬外設方框圖

圖10.JN5148 PCB天線參考模塊電路圖

JN5148 PCB天線參考模塊電路圖元件列表


詳情請見:
http://www.jennic.com/download_file.php?brief=JN-DS-JN5148-1v2.pdf