Overview
Ceva-Waves Bluetooth 5.4 Low Energy IP is a comprehensive and flexible solution for integration into SoCs/ASSPs.
The Ceva-Waves BLE hardware baseband controller core, 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 LE Audio applications, it supports the ISO feature.
For a more comprehensive solution, the Ceva-Waves BLE baseband controller IP is complemented with:
the Ceva-Waves BLE host protocol stack and profiles. It can be combined with the firmware of the Ceva-Waves BLE baseband controller to create a fully embedded or fully hosted solution, or run on a separate micro-controller.
the Ceva-Waves Bluetooth RF IP. This is a complete radio transceiver including modem compliant with Bluetooth low energy.
for full LE Audio support, the Generic Audio Framework (GAF) software package complements the ISO feature. It also fully supports Auracast. The Apple proprietary MFi LEA software package is also proposed for hearing aid devices.
The combined Ceva-Waves BLE firmware and Ceva-Waves BLE 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 Ceva-Waves BLE 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 Ceva-Waves BLE host protocol stack and profiles can also be used with any Bluetooth low energy HCI controller IC.
For LE audio applications, Ceva-Waves Bluetooth IP is well complemented by the Ceva Sound solutions including the Ceva-BX1/2 audio/voice DSPs, ClearVox voice processing software package, Whispro speech recognition software package and a comprehensive list of CODECs and other sound processing software packages. The HillCrest Labs MotionEngine is another complementary software package optimized for touch and motion detection in headsets and earbuds.
Key Features
- Compliant with Bluetooth Low Energy specifications up to version 5.4
- Supports all mandatory and optional features of Bluetooth low energy, including LE 2Mbps, LE Long Range, LE Advertising Extensions, LE Channel Selection #2, LE Direction Finding with AoA/AoD, ISO for LE Audio support, LE Channel Classification, Packet Advertizing with Response (PAwR), Channel Sounding, etc.
- Optimized architecture for scatternet operations (central+ peripheral simultaneous links, including several simultaneous peripheral links)
- Supports all BLE packet types
- Supports central/peripheral modes
- Supports all states: standby, advertising, scanning, initiating, connection, ...
- Filter Accept List (aka 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 (Sport & Fitness, Medical & Healthcare, Find Me, HOGP, ...).
- Standard Bluetooth Mesh profile is available for lighting and other mesh smart home / building applications.
- Generic Audio Framework (GAF) is also available for full LE Audio support, including Auracast transmitter and receiver support.
- Optional support of 802.15.4
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, etc, or CEVA-BX 1/2 DSPs.
- 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
Block Diagram
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
- ESL
- BMS
- Direction Finding, accurate indoor localisation and asset tracking
- True Wireless Stereo earbuds, hearing aid devices, headsets, speakers
- Wireless charging (A4WP)
- Mesh: lighting, sensors, ...
Deliverables
- hardware: verilog RTL, testbench, compilation, simulation and synthesis scripts
- software: C
- documents
- test tool running on Windows or Linux
Technical Specifications
Foundry, Node
any
Maturity
Silicon proven
Availability
Available
TSMC
Pre-Silicon:
130nm
G
