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1.1. About the Juno ADP

The Juno ADP is a 64-bit software development platform consisting of an ARM Versatile Express V2M-Juno motherboard containing a Juno ADP SoC and reference software.

The ADP is based around an ARMv8-A Compute Subsystem (CSS) and provides:

  • Dual core Cortex®-A57 MPCore processors (big cluster).

  • Quad core Cortex-A53 MPCore processors (LITTLE cluster).

  • A Mali™-T624 series GPU with four shader cores for 3D Graphics acceleration and GPU compute.

  • A Cortex M3-based System Control Processor (SCP) which offloads power control and thermal management.

  • 4GB of DDR3-1600 memory (dual channel, striped).

  • An architecture that is aligned with Level 1 of the Server Base System Architecture.

  • ARM big.LITTLE MP support. On Juno r1 only, the LITTLE cluster is limited to the lowest DVFS Operating Performance Point (OPP) due to hardware limitations. Therefore, the big.LITTLE MP scheduler is not optimized.

The following hardware features are available only on Juno r1:

  • Peripheral Component Interconnect Express (PCIe) Gen 2.0 support.

Reference firmware and other software images are available for the Juno ADP from Linaro.


The use of Juno software is subject to the terms of the Juno End-User License Agreement.

External interfaces include:

  • Support for LogicTile Express boards that you can use to extend the Juno ADP.

  • USB 2.0 and a custom SoC to Field Programmable Gate Array (FPGA) prototyping extension interface.


The V2M-Juno motherboard is lead-free.

The V2M-Juno motherboard is available from ARM. For information, see


The ARM Connected Community pages provide additional information for users of the Juno ADP, including FAQs and advice on working with the Linaro deliverables. For more information, see

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