Best-in-class Arm® AMBA® ACE Verification IP (VIP) for your IP, SoC, and system-level design testing

Cadence provides a mature and comprehensive Verification IP (VIP) for the CXS specification which is part of the Arm® AMBA® family of protocols. Incorporating the latest protocol updates, the Cadence® VIP for CXS is designed for easy integration in testbenches at IP, system-on-chip (SoC), and system levels. The VIP helps you reduce time to test, accelerate verification closure, and ensure end-product quality. The CXS VIP runs on all major simulators and supports SystemVerilog and e verification languages along with associated methodologies, including the Universal Verification Methodology (UVM) and Open Verification Methodology (OVM).

Supported specification: AMBA CXS v2.0 and Issue B update.

AMBA CXS diagram

Product Highlights

  • Supports seamless integration in SystemVerilog, UVM, OVM, e, and SystemC® verification environments
  • Generates constrained-random bus traffic with predefined error injection
  • Comprehensive checking model
  • Could be used as standalone or in conjunction with CCIX VIP
  • Callbacks access for transaction modification, scoreboarding, and debugging
  • Dynamic activation to enable setting the VIP as active/passive during run time
  • Provides extensive System Verilog coverage

Key Features

The following table describes key features from the specifications that are implemented in the VIP:

Feature Name


CCIX Support

  • Packs and unpacks CCIX messages to interface Arm CMN600 interconnect with CCIX support and works seamlessly with CCIX PRL VIP

Transaction Types

  • Supports monitoring and driving of all transaction types

Credit Grant

  • Supports different credit grant allocation modes

Delay Control

  • Delay controls for all interface signals

Multiple Packets in Single Flit

  • Supports multiple packets in a single flit

Data Check

  • Parity and secded checks

Ignore Deactivation Hint

  • Supports ignoring deactivation hint


  • Supports replication mode

Continuous Data

  • Supports continuous data mode

Simulation Test Suite

VIP comes along with a testsuite of scenarios for easy VIP evaluation and deployment.

Please contact us for further information.

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