VC Verification IP for AMBA CHI

Synopsys VC Verification IP for ARM® AMBA® CHI provides a comprehensive set of protocol, methodology, verification and productivity features, enabling users to achieve accelerated verification closure of AMBA 5 CHI Issue A and Issue B based interconnects and interfaces. AMBA CHI VIP works in conjunction with other Synopsys AMBA VIP to provide a complete system solution for AMBA.

AMBA 5 Protocol Features

  • AMBA 5 CHI Issue A and Issue B specification support
  • Request Node, Slave Node agents and Monitor
  • Complete port-level checks
  • Supports all interface types
  • AMBA CHI system monitor provides system-wide protocol and data integrity checks
  • AMBA CHI system environment encapsulates CHI masters, slaves, monitors, interconnect environment
  • AMBA system environment encapsulates CHI and other AMBA protocols

AMBA 5 CHI Verification

System Environment 
The Synopsys CHI VIP simulates CHI transactions through active agents, as defined by the CHI specification. The VIP provides a CHI System Environment (Env) which comprises of agents for RN (Request Node) and SN (Slave Node), and a CHI System Monitor. The RN and SN agents support all the protocol features as per the CHI Specification and the methodology functionality normally associated with active and passive UVM components. The RN agent has an internal cache model which facilitates the sole of actual cache and the SN agent has an inbuilt memory instance.

The CHI System Env itself is contained within top level System VIP component AMBA System Env. User can either use AMBA System Env, CHI System Env, or standalone RN and SN agents in the testbench. The CHI System Monitor component is instantiated within the CHI System Env component. The System Monitor performs system-level checks across the CHI RN and SN ports within the system to ensure coherency is maintained as per the protocol.

AMBA Verification System Environment
The AMBA 5 CHI verification system environment is integrated with the AMBA verification system environment to provide all of the configurability of the AMBA 5 CHI Verification System Environment with the addition of AMBA 4 AXI™, ACE™, AHB™ and APB™ verification system environments. A system monitor provides system-wide checking across all of the protocols.