CoreLink CCI-500

The Arm CoreLink CCI-500 Cache Coherent Interconnect

Getting Started

The Arm CoreLink CCI-500 Cache Coherent Interconnect extends the performance and low power leadership of Arm mobile systems. It provides full cache coherency between big.LITTLE processor clusters and provides I/O coherency for other agents such as Mali GPU, network interfaces or accelerators. CoreLink CCI-500 offers a scalable and configurable interconnect which enables SoC designers to meet the performance goals with the smallest possible area and power.

Specifications

 Features Details
 AMBA AMBA 4 ACE and ACE-Lite
 ACE slave interfaces 1-4 for fully coherent processors including Arm Cortex
 ACE-Lite slave interfaces 0-6 for IO coherent devices such as Mali processors, accelerators and IO such as PCIe root complex
 Memory and System master interfaces 1-4 memory interfaces
1-2 system interfaces
 Coherency and snoop filter Integrated snoop filter maintains directory of 
processor cache contents, reduces CPU snoops and reduces system power
 Memory map 32-48 bit physical address width, configurable address map
40, 44, or 48-bit DVM

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  • TRM

  • CoreLink CCI-500 TRM

    For system designers, system integrators and programmers who are designing a SoC, the TRM is the go-to resource.

    CCI-500 TRM
  • A guide on software optimization.

  • AMBA 4 ACE Specification

    CoreLink CCI-500 is built on the AMBA AXI4 specification, targeting high bandwidth, high clock frequency designs.

    AMBA specs
  • A program that is running on a desktop.

  • Extended System Coherency

    A three-part series of blogs on cache coherency fundamentals, and why they matter to system design.

    Learn more
  • A program that is running on a desktop.

  • System Validation at Arm

    Enabling Partners to Build Better Systems

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  • A program that is running on a desktop.

  • Introduction to AMBA 4 ACE

    Focused on AMBA ACE and ACE-Lite interfaces, which introduce system-level coherency, cache maintenance, Distributed Virtual Memory (DVM) and barrier transaction support. It enables big.LITTLE software to run effectively, increasing system efficiency.

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  • A program that is running on a desktop.

  • Quality of Service in Arm Systems

    Nearly all performance-oriented SoCs are dependent on high bandwidth and low latency external memory systems to deliver within cost and performance constraints. This paper goes through the QoS functions that help deliver predictable performance in Arm systems.

    Download
  • A program that is running on a desktop.

  • QoS for Performant and Efficient HD Media.

    Ensuring the demands of video streaming are consistently met while minimizing cost and maximizing battery life are the challenges for today's SoC designer. This paper explores how QoS mechanisms can enable lower latency while maintaining sufficient overall system bandwidth.

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Introduction Video

Learn more about CoreLink CCI-500 features, applications and benefits.

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Community Forums

Answered RTE components in uVision5 0 votes 103 views 1 replies Latest 2 days ago by Ralph Kopsch Answer this
Answered Mali GPU Counters 0 votes 653 views 8 replies Latest 4 days ago by Peter Harris Answer this
Answered Arm Compiler V6.15 LTO Optimizations and -Oz
  • Keil MDK
  • Arm Compiler 6
  • Variable
  • Cortex-M0+
 0 votes 207 views 1 replies Latest 5 days ago by Ronan Synnott Answer this
Answered Compile and execute code on Foundation platform
  • GCC
  • Armv8 Foundation Platform
  • Fixed Virtual Platforms (FVPs)
 0 votes 220 views 2 replies Latest 5 days ago by Ronan Synnott Answer this
Answered License Errors 0 votes 161 views 1 replies Latest 7 days ago by Peter Harris Answer this
Answered The example of CMISS NN 0 votes 145 views 1 replies Latest 7 days ago by Ralph Kopsch Answer this
Answered RTE components in uVision5 Latest 2 days ago by Ralph Kopsch 1 replies 103 views
Answered Mali GPU Counters Latest 4 days ago by Peter Harris 8 replies 653 views
Answered Arm Compiler V6.15 LTO Optimizations and -Oz Latest 5 days ago by Ronan Synnott 1 replies 207 views
Answered Compile and execute code on Foundation platform Latest 5 days ago by Ronan Synnott 2 replies 220 views
Answered License Errors Latest 7 days ago by Peter Harris 1 replies 161 views
Answered The example of CMISS NN Latest 7 days ago by Ralph Kopsch 1 replies 145 views