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Overview

CEVA s RivieraWaves Bluetooth 5.1 low energy IP is a comprehensive and flexible solution for integration into SoCs/ASSPs.

The RW-BLE hardware baseband controller core (RW-BLE-BB), in charge of packet encoding/decoding and frame scheduling, is complemented by a hardware AES128 encryption engine for real time encryption/decryption of the packets.

The firmware is composed of the Link Layer(LL) and Host Control Interface (HCI). It is provided with reference platform drivers and with a small task scheduler offering task management, inter-task communications, message (queues and events) management and timing management, for use as standalone or integrated into other real time OS.

For a more comprehensive solution, the RW-BLE baseband controller IP is complemented with:

the RW-BLE-SW host protocol stack and profiles. It can be combined with the firmware of the RW-BLE baseband controller to create a fully embedded or fully hosted solution, or run on a separate micro-controller.

the RW-BT-RF IP. This is a complete radio transceiver including modem compliant with Bluetooth low energy.

The combined RW-BLE firmware and RW-BLE-SW host protocol stack and profiles form a highly flexible solution supporting 3 different configurations:

Fully hosted configuration: all software is running on the same embedded processor. There is no HCI. Alternatively, the complete software can run on a host/application processor, driving a CPU-less BLE IC containing the RW-BLE-BB baseband controller core.

Split configuration: lower layers below HCI are running on the embedded processor while the upper layers above HCI are running on the host/application processor.

Fully embedded configuration: all software is running on the embedded processor, while the application is running on the host/application processor.

A processor agnostic turnkey fully integrated platform with embedded open source RISC-V processor is also proposed as a cost effective and short time to market alternative solution.

The RW-BLE-SW host protocol stack and profiles can also be used with any Bluetooth low energy HCI controller IC.

Benefits

  • Hardware core designed in synthesizable Verilog for easy technology migration
  • Hardware encryption
  • Flexible and portable software written in C. The software can run on any processor, including ARM Cortex M family, ARC EM, RISC-V, Cortus, Andes, etc.
  • Low operating frequency selectable between 8 and 32 MHz
  • Support of 32000 Hz and 32768 Hz low power clock
  • AMBA2 AHB bus or SPI interface for easy integration into any ASIC or SiP
  • Designed for minimal power consumption
  • Low gate count
  • Low MIPS and low memory footprint
  • Support of RF qualification mode and regulatory body
  • DFT ready, accepted by major ATPG tools

Applications

  • IoT, smart home, smart building
  • Tag, asset tracking
  • Sport & Fitness: wristband, smartwatch, heartrate monitor, running speed, cycling speed, weight scale
  • Medical: thermometer, glucose monitor, blood pressure monitor, ...
  • Remote control: mouse, keyboard, game pad
  • Direction Finding, accurate indoor localisation and asset tracking
  • Hearing Aid
  • Wireless charging (A4WP)
  • Mesh: lighting, sensors, ...

Block Diagram

Tech Specs

Market SegmentBluetooth
Maturity In Production

Features

  • Compliant with the Bluetooth low energy versions 4.0/4.1/4.2/5/5.1 specifications
  • Supports all mandatory and optional features of Bluetooth low energy, including all the BLE4.2, BLE5 and BLE5.1 features such as 2Mbps, Long Range, Advertising Extensions, Channel Selection #2, Direction Finding with AoA/AoD
  • Optimized architecture for scatternet operations (master + slaves simultaneous links, including several simultaneous slave links)
  • Supports all BLE packet types
  • Supports master and slave modes
  • Supports all states: standby, advertising, scanning, initiating, connection, ...
  • White list
  • Frequency Hopping with channel assessment for higher link robustness and improved coexistence with interferers such as Wi-Fi devices
  • Embedded coexistence interface for collocation with other wireless protocols such as Wi-Fi, Zigbee, ...
  • AES128 encryption
  • Complete software protocol stack: Link Layer (LL), Host Control Interface (HCI), L2CAP, Attribute Protocol (ATT), Security Management Protocol (SMP), Generic Attribute Profile (GATT), Generic Access Profile (GAP), and a comprehensive list of services and profiles (Proximity, Find Me, Health Thermometer, HOGP, A4WP, ...).
  • Standard Bluetooth Mesh profile is also available for lighting and other mesh smart home / building applications.

Deliverables

  • hardware: verilog RTL, testbench, compilation, simulation and synthesis scripts
  • software: C
  • documents
  • test tool running on Windows or Linux

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