Cortex-R series processors
ARM documentation set for the ARM Cortex-R family of processors, including the ARM Cortex-R5(F), ARM Cortex-R4(F) processors, and ARM Cortex-R7 MPCore processor.
The ARM Cortex-R Series is a family of embedded processors for real-time systems. The Cortex-R family processors support the ARM and Thumb instruction sets.
- The ARM Cortex-R5 processor is a high-performance real-time processor for use in embedded systems.
- The ARM Cortex-R5F processor is a Cortex-R5 processor with a floating point unit (FPU).
- The ARM Cortex-R4 processor is a mid-range real-time processor for use in deeply embedded systems.
- The ARM Cortex-R4F processor is a Cortex-R4 processor with a floating point unit (FPU).
- The ARM Cortex-R7 MPCore processor is a high performance real-time multiprocessor for use in a vast range of deeply embedded applications.
Using this set
To browse this set, use the
Contents frame
on the left:

- click on a topic to view it, and also to expand it so you can see the topics or documents it contains
- click on the
beside a topic to expand it without viewing it
- click on the
beside a topic to collapse it.
To search the documentation, enter your search term in the Search our documentation field above the Contents tab:

- ensure you are searching in the correct part of the site:
- to search all the site, choose All documents
- to search only this set, choose Current set of documents, and select the topic containing the documents you want to search
- to search a particular document in this set, choose Current document, and select the document or any topic inside it
- To start the search, either click the Get search results button
or press Return.
Viewing SVG graphics
All line drawings use the SVG format. This enables you to zoom in on the graphic without losing any quality. To view these graphics, your browser must support the SVG format. If your browser does not have native support, you must install an appropriate plugin such as the Adobe SVG Viewer.
Finding out more
For more detailed information about using this site, see the site Frequently Asked Questions.