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CEVA-Bluetooth IP for Low-Power, Cost-Sensitive IoT, Mobile, Automotive, Industrial and Environmental Applications

CEVA-Blootooth_smallCEVA-Bluetooth solutionBluetooth is a widely-used wireless technology standard for creating personal area networks (PANs). Bluetooth was originally conceived to securely carry speech and data over short distances of typically a few meters. Propelled by its popularity in hands-free headsets and automotive hands-free kits, Bluetooth is approaching virtual universal availability in wireless handsets and smartphones, and other mobile consumer electronic products including tablet computers, wearable devices, portable media players, portable game consoles, and automotive applications.

CEVA-Bluetooth Block DiagramAs a leading provider of embedded Bluetooth IP since the year 2000, CEVA has a strong track record in licensing and supporting this specialist technology. Designed for portability, CEVA-Bluetooth IP is particularly suitable for integration into ‘combo’ peripheral chips (co-existing with WiFi / FM / DAB / DTV / GPS / NFC / etc.), integrated cellular application-processors/baseband SoCs, and wireless audio devices such as portable speakers, dockings and soundbars.

With support for the highly popular BT 2.1+EDR/3.0 standards, and the newer BT 4.0/4.1 low energy standards (for both dual mode and single mode operation), CEVA-Bluetooth solutions have been designed with flexible open interfaces to give chip architects freedom in choosing the other elements of the system, including the radio, embedded processor, host software stack, and operating system. Further, for BT4.0/4.1 Single Mode applications, CEVA also provides a compact Host software stack plus Profiles suite.

In addition to being suitable for general deployment on common 32bit embedded RISC processors, the CEVA-Bluetooth controller software is also fully optimized for the CEVA-TeakLite-4 DSP family, with the CEVA-Bluetooth baseband hardware seamlessly connecting to the CEVA-TeakLite-4 interface. This close coupling of CEVA technologies enables an efficient single core solution for wireless connectivity plus audio/voice/sensing, as required for highly-integrated wearable and mobile devices, which demand ultra-low-power, while supporting always-connected and always-on user interfaces such as voice trigger/command.

CEVA-Bluetooth Target Applications

Any device that requires Bluetooth capability, including wireless headsets and smartphones, tablet computers, wireless speakers, portable media players, portable game consoles, and automotive applications. In addition, with Bluetooth 4.0/4.1 Low Energy, a wide range of new Bluetooth-enabled sensor applications are addressed, such as wearable sensor products for medical and sports, toys, environment sensors, active shutter 3DTV glasses and other machine–to-machine communications.

Features Deliverables

Bluetooth 2.1+EDR, Bluetooth 3.0 plus WLAN PTA co-existence interface, Bluetooth 4.0 (LE) single mode and dual mode

Flexible RF Interface, supporting BlueRF (RX Mode 2) and others

AMBA Peripheral Bus (APB) for simple interface to embedded processor

Standard HCI for integration with common host protocol stacks

Low-power operation

SCO and eSCO voice conversion with dedicated hardware, supporting CVSD, A/u law

Controller software stack designed for portability and configurability, fully supporting CEVA-TeakLite-4 DSP

Baseband hardware datasheet, Verilog RTL Source code, Verilog simulation test environment

Baseband hardware example physical design scripts, including synthesis, scan insertion, and STA

Controller software source code for both the core and the Hardware Abstraction Layer (HAL)

Controller software design documents including HAL component design document, Controller configuration document, and HCI functional specification document

FPGA-based development system presenting a UART-based HCI and a flexible interface to the licensee's radio

CEVA-Bluetooth HC Data Tester – a proprietary Windows-based application allowing low level HCI testing

...and many more - Download the CEVA-Bluetooth Product Brief for more information

Architectural Highlights

CEVA-Bluetooth is available in a number of configurations to match customer’s needs.

CEVA-Bluetooth 2.1+EDR IP provides a solution for applications requiring the highly popular classic Basic Rate and Enhanced Data Rate Bluetooth.

CEVA-Bluetooth 3.0 IP provides enhanced power control, and an extended HCI definition for encryption key size management. It also includes a highly flexible Packet Traffic Arbitration (PTA) interface to facilitate co-existence with on-die integrated 802.11 WLAN IP. For applications requiring the Alternate MAC/PHY (AMP) function as described in Bluetooth3.0+HS, customers can integrate CEVA-Bluetooth with their own or 3rd party AMP IP.

CEVA-Bluetooth 4.0/4.1 SM IP provides an optimized solution (including Host software and typical Profiles) for applications requiring Single Mode Bluetooth Low Energy, such as button-battery powered sensor products e.g. wearable devices for medical /sports, toys, environment sensors and other machine–machine communications.

CEVA-Bluetooth 4.0/4.1 DM IP provides an integrated solution for next generation ‘Combo’ SoCs which look to provide Dual Mode (i.e. both classic and LE) Bluetooth, as is typical going forward in cellular phones, tablets and other mobile communication platforms.