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The Arm Cordio-C50 is a Bluetooth 5 modem, a 802.15.4-2006 modem, protocol processing logic and link and MAC layer controller delivered as soft IP, with powerintent and implementation IP, associated test-benches and link layer and MAC firmware. Cordio-C50 supports changes for the Bluetooth 5 radio including the 2 Mbps mode, long range, and advertising extensions. The 802.15.4 MAC also has features to support both Thread and Zigbee Pro upper layer stacks. The design is optimized for low-power with support for Bluetooth 5 and 802.15.4 standards, ideal for designers who want to implement the latest features with a qualified/certified solution for reduced risk and reduced time to market.


IoT, smart embedded


  • Bluetooth 5 modem and protocol processing logic
  • 802.15.4 modem and protocol processing logic
  • Link layer controller
  • MAC and link layer firmware
  • Operating modes
  • Bluetooth 5 only or 802.15.4 only
  • Simultaneous operation, supporting dynamic switching between two WPANs IP implementation
  • RTL for modem, link layer and protocol processor
  • Narrow digital interface to RF front end (RF interface)
  • Designed as an Arm AMBA peripheral
  • MAC and Link layer firmware delivered as source code
  • Enables flexibility to support different geometries and foundries
  • Bluetooth Cordio software
  • Bluetooth qualified link-layer firmware up to the HCI and 802.15.4 MAC layer firmware
  • Bluetooth qualified software subsystems
  • Zigbee/Thread compliant platform through third party stacks
  • Separately licensable Cordio stack and profile


Design deliverables
  • RTL for modem, link layer and protocol processor
  • Link layer and MAC firmware delivered as source code
  • Test vectors, timing and physical Abstraction models
  • Scripts for simulation and synthesis with Cadence tools
  • Integration manual and release notes
  • Support deliverables
  • Evaluation kit: An Arm mbed
  • enabled platform with a demonstration chip containing the Cordio
  • C50 radio IP
  • Bluetooth qualified controller sub
  • system to ease Bluetooth listing of OEM products
  • Bluetooth/Thread/Zigbee qualification/certification and regulatory guides
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