A collection of models and protocols, provided as LISA+ components. You can use them to model a system using the Fast Models tools. Ports and protocols are used for communication between components. Some models are of Arm^® IP, while others are not. Examples of Arm IP models include:

• Processors, including models of all Arm Cortex^® processors and architectural models for Armv8, called AEMs.
• Models of Arm media IP such as GPUs, video processors, and display processors.
• Peripherals, for instance Arm CoreLink™ interconnect, interrupt controllers, and memory management units.

Some models are abstract components that do not model specific Arm IP, but are required by the software modeling environment. For example:

• PVBus components to model bus communication between components.
• Emulated I/O components to allow communication between the simulation and the host, such as a terminal, a visualization window, and an ethernet bridge.

• Arm Versatile™ Express development boards for Armv7‑A and Armv7‑R processors.
• Armv8‑A and Armv8‑R Base Platform.
• MPS2 development boards for Armv6‑M, Armv7‑M, and Armv8‑M processors.

Model Trace Interface (MTI) plug-ins. MTI is the interface used by Fast Models to emit trace events during execution of a program, for example branches, exceptions, and cache hits and misses. Fast Models provides some pre-built MTI plug-ins that you can load into a model to capture trace data, without having to write your own plug-ins. For example:

• TarmacTrace can trace all processor activity or a subset of it, for instance only branch instructions or memory accesses.
• GenericTrace allows you to trace any of the MTI trace sources that the models can produce.
• Fastline generates traces in .apc format that you can import into Arm Streamline for analysis.

Some trace plug-ins are provided in source form as programming examples. They can also be compiled and used.