Getting Started

Fast Models are accurate, flexible programmer's view models of Arm IP, allowing you to develop software such as drivers, firmware, OS and applications prior to silicon availability. They allow full control over the simulation, including profiling, debug and trace. Fast Models can be exported to SystemC and TLM 2.0, allowing integration into the wider SoC design process.

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What's new in Fast Models?

  • Public support has been added for the Cortex-M85 model.
  • Public support has been added for the Cortex-X1C model.
  • Public support has been added for the GIC-700r1 model. The now supports features from r0 and r1.
  • CPU cluster configurations with a configurable number of cores is supported using the "NUM_CORES" parameter.

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Access older versions of Fast Models you hold a license for.

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A bug, A chip, a robot etc.

Components in a Virtual Prototype

A complete virtual prototype of a system contains more than just an Instruction Set Simulator. A full system consists of:

  • Fast, accurate models of cores, subsystems or systems
  • SystemC interface for integration with EDA tools and other IP blocks
  • APIs for debug and trace, allowing full control and an interface to Arm Development Studio, MDK and 3rd party debug tools
  • Python based scripting for runtime control, checking and reporting
  • Visualization, file system access, peripherals and networking from virtual I/O
  • Fully compatible Linaro software stacks, from boot code to Linux and Android OS support

Software Development with Fast Models

Complete & Accurate

Fast Models are available for all Cortex processors, CCI and CCN interconnect, as well as other system IP. Fast Models are functionally accurate, so banked and co-processor registers, exception levels, translation tables and cache coherency are all available to programmers.

Hybrid Simulation

Connect a CPU subsystem to peripherals on hardware emulators via AMBA transactors for emulation acceleration. Compatible with Cadence, Mentor Graphics and Synopsys emulators for maximum flexibility in your software development and IP validation process.

Fixed Virtual Platforms

Fixed versions of Fast Models are also available, giving software developers a ready-to-use model of a complete Arm system. They can be downloaded, licensed individually and imported into Development Studio for ease of use. Fixed Virtual Platforms are a convenient way of testing software without needing to wait for development boards to become available.

Fast Models Library

Arm releases models of our IP to lead partners at an early stage, so please contact us for more information on upcoming Fast Models.

The Fast Models library contains the following models:

Type Family Models Fast Models

Full Library

All Runtime

M-Class Library

M-Class Runtime

Platform Construction Tools

System Canvas

Not Applicable

System Generator

Not Applicable

Model Debugger

Not Applicable



Neoverse-N2, Neoverse-V1,
Neoverse-E1, Neoverse-N1


Cortex-X1, Cortex-X2,
Cortex-A710, Cortex-A510,
Cortex-A78AE, Cortex-A78,
Cortex-A77, Cortex-A76AE,
Cortex-A76, Cortex-A75,
Cortex-A73, Cortex-A72,
Cortex-A65AE, Cortex-A65,
Cortex-A57, Cortex-A55,
Cortex-A53, Cortex-A35,
Cortex-A32, Cortex-A17,
Cortex-A15, Cortex-A9,
Cortex-A8, Cortex-A7,


Cortex-R52, Cortex-R8,
Cortex-R7, Cortex-R5,


Cortex-M55, Cortex-M35P,
Cortex-M33, Cortex-M23,
Cortex-M7, Cortex-M4,
Cortex-M3, Cortex-M0,


Neural Processing Unit

Ethos-U65, Ethos-U55

System IP


CI-700, CMN-700, CCI-400,
CCI-500, CCI-550, CCN-502,
CCN-504, CCN-508, CCN-512,
CMN-600, CMN-600AE

Generic Interrupt Controllers

GIC-400, GIC-500, GIC-600, GIC-600AE, GIC-700

Memory Management Unit (MMU)

MMU-400, MMU-500, MMU-600, MMU-700


CryptoCell-312 new,
CryptoCell-712 new

Media IP

Mali Display Processors

Mali-DP500, Mali-DP550,
Mali-DP650, Mali-D71

Mali Graphics Processors

Mali-G51, Mali-G71, Mali-G710 (Linux only), Mali-G72,

Mali Video Processors

Mali-V550, Mali-V61

Peripherals and Infrastructure


Ethernet, MMC, CLDC, HDLCD, VirtIO Block, Virtio Plan, VFS


UART, MMU, Mouse and Keyboard, SSP, Timers, Clocks, GPIO


RAM, Flash, NAND Flash, PL080, PL340, PL350, L2C-310




Visualization, Bridges to AMBA-PV, PV Bus, File/App Loaders

Architectural Fast Models


Armv8-A (up to version 8.7)

Armv8-M (up to version 8.1)

Interrupt Controller

GICv2, GICv3, GICv4





Neoverse E1 Edge, Neoverse N1 Edge




* Contact if you require access to these models.


Fixed Virtual Platform Downloads

Get access to the latest simulation models of Arm IP

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